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615 lines
17 KiB
Plaintext
615 lines
17 KiB
Plaintext
8 months ago
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*! version 1.2.4 TJS 31aug98 STB-46 gr33
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program define violin
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version 5.0
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local varlist "req ex min(1)"
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local if "opt"
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local in "opt"
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local weight "fweight aweight"
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#delimit ;
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local options "N(integer 50) Width(real 0.0) TRUncat(str)
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BIweight COSine EPan GAUss RECtangle PARzen TRIangle
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BY(str) Gap(integer 0) ROund(real 0.0) SAving(str)
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B2title(str) *" ;
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#delimit cr
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parse "`*'"
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parse "`varlist'", parse(" ")
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* trap bad options
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if index("`options'","tr") > 0 {
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di in re "option tr ambiguous, " _c
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error 199
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}
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if "`b2title'" != "" {
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di in bl "b2title not allowed; option ignored."
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}
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* -> Kernel Density code stolen from kdensity.ado
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local kflag = ( ("`epan'" != "") + ("`biweigh'" != "") + /*
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*/ ("`triangl'" != "") + ("`gauss'" != "") + /*
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*/ ("`rectang'" != "") + ("`parzen'" != "") )
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if `kflag' > 1 {
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di in red "specify only one kernel"
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exit 198
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}
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if "`biweigh'" != "" { local kernel = "Biweight" }
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else if "`cosine'" != "" { local kernel = "Cosine" }
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else if "`triangl'" != "" { local kernel = "Triangle" }
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else if "`gauss'" != "" { local kernel = "Gaussian" }
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else if "`rectang'" != "" { local kernel = "Rectangular" }
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else if "`parzen'" != "" { local kernel = "Parzen" }
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else { local kernel = "Epanechnikov" }
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tempvar use
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quietly {
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mark `use' [`weight'`exp'] `if' `in'
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markout `use' `varlist'
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count if `use'
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}
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if _result(1) == 0 { error 2000 }
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if "`by'" != "" {
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confirm var `by'
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unabbrev `by'
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local by $S_1
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}
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if "`if'" != "" {ifexp "`if'"}
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preserve /* Note: data preserved here */
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keep `by' `varlist' `use'
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local n1 = `n' + 1
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local n2 = `n' * 2 + 1
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if `n2' > _N { qui set obs `n2' }
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* Generate BY groups
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tempvar kk byg bylabel
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sort `use' `by'
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qui by `use' `by': gen byte `byg' = _n == 1 if `use'
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if "`by'" != "" { qui gen `kk' = _n if `byg' == 1 }
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qui replace `byg' = sum(`byg')
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if "`by'" != "" {
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local byn = `byg'[_N]
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sort `kk'
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if `use'[`byn'] == . { local byn = `byn' - 1}
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}
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else { local byn = 1 }
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* Generate `by' labels -- if required
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if "`by'" != "" {
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capture decode `by', gen(`bylabel')
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if _rc != 0 {
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local type : type `by'
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qui gen `type' `bylabel' = `by'
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}
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}
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tempname t2flg b1flg
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global t2flg = 0
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global b1flg = 0
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* Do calculations
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* get # of vars
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local i 1
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while "``i''" != "" {
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local i = `i' + 1
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}
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local nvars = `i' - 1
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if `nvars' > 1 & "`by'" != "" {
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di in red "by() cannot be used with /*
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*/ multi-variable varlist"
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exit
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}
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* Note: `k' loops over multiple individual variables
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* `j' loops over the levels of a -by- variable
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local k 1
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while "``k''" != "" {
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local ix "``k''"
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local ixl: variable label ``k''
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if "`ixl'" == "" | `nvars' > 1 { local ixl "``k''" }
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local j = 1
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while `j' <= `byn' { /* start of loop for each `by' group */
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if "`by'" != "" {
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sort `kk'
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local byl : di "`by': " `bylabel'[`j']
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}
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* boxplot stats
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qui centile `ix' if `use' & `byg' == `j', c(25 50 75)
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local q25 = $S_7
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local q50 = $S_8
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local q75 = $S_4
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* compute additional boxplot info
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tempvar xi
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local uav = `q75' + 1.5 * (`q75' - `q25')
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qui egen `xi' = max(`ix') /*
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*/ if `ix' <= `uav' & `use' & `byg' == `j'
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local uav = `xi'
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drop `xi'
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local lav = `q25' - 1.5 * (`q75' - `q25')
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qui egen `xi' = min(`ix') /*
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*/ if `ix' >= `lav' & `use' & `byg' == `j'
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local lav = `xi'
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drop `xi'
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if `j' == 1 {
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quietly summ `ix' [`weight'`exp'] if `use', detail
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local ismin = _result(5)
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local ismax = _result(6)
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if "`by'" != "" {
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local isn = _result(1)
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local ismn = _result(5)
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local ismx = _result(6)
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local ism = _result(10)
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local is25 = _result(9)
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local is75 = _result(11)
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local iss = 0
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local isw = 0
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}
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}
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if `j' == 1 & "`by'" != "" {
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if `width' <= 0 {
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tempname wwidth
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local ismin = `ism'
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local ismax = `ism'
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local jj 1
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while `jj' <= `byn' {
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quietly summ `ix' [`weight'`exp'] /*
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*/ if `use' & `byg' == `jj', detail
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scalar `wwidth' = 0.9 * min(sqrt(_result(4)), /*
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*/ (_result(11) - _result(9)) / 1.349) /*
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*/ / (_result(1)^.2)
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local ismin = min(`ismin', _result(5) - `wwidth')
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local ismax = max(`ismax', _result(6) + `wwidth')
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local jj = `jj' + 1
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}
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}
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else {
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local ismin = `ismn' - `width'
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local ismax = `ismx' + `width'
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}
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}
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quietly summ `ix' [`weight'`exp'] if `use' & `byg' == `j', detail
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local ixmin = _result(5)
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local ixmax = _result(6)
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local ixn = _result(1)
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if `gap' == 0 { local gp = 1 + max( /*
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*/ length(string(round(`ixmin', `round'))), /*
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*/ length(string(round(_result(10),`round'))), /*
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*/ length(string(round(`ixmax', `round')))) }
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else { local gp = `gap' }
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tempname wwidth
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scalar `wwidth' = `width'
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if `wwidth' <= 0.0 {
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scalar `wwidth' = 0.9 * min(sqrt(_result(4)),(_result(11) /*
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*/ - _result(9)) / 1.349) / (_result(1)^.2)
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}
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local ww = `wwidth'
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tempvar d m
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qui gen double `d' = .
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qui gen double `m' = .
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kd `ix' `d' `m' `use' `byg' [`weight'`exp'], n(`n') /*
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*/ ww(`ww') j(`j') `biweight' `cosine' `epan' /*
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*/ `gauss' `rectangle' `parzen' `triangle'
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label var `d' "density"
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label var `m' "`ixl'"
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* truncat option
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if "`truncat'" != "" {
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if "`truncat'" == "*" {
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local tn = `ixmin'
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local tx = `ixmax'
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}
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else {
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quietly summ `m' [`weight'`exp'] if `use', detail
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local ismn = _result(5)
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local ismx = _result(6)
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local nc 1
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while `nc' > 0 {
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local nc = index("`truncat'",",")
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if `nc' > 0 { local truncat = substr("`truncat'",1, /*
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*/ `nc' - 1) + " " + substr("`truncat'",`nc' + 1,.) }
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}
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local tn: word 1 of `truncat'
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local tx: word 2 of `truncat'
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local tn = real("`tn'")
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local tx = real("`tx'")
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if `tn' > `ismn' { local tn = min(`tn',`ixmin') }
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if `tx' < `ismx' { local tx = max(`tx',`ixmax') }
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}
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qui replace `m' = . if `m' < `tn' | `m' > `tx'
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}
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qui summ `d' in 1/`n'
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local scale = 1 / (`n' * _result(3))
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qui replace `d' = `d' * `scale' in 1/`n'
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local n21 = `n' * 2 + 1
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qui replace `d' = -`d'[`n21' - _n] in `n1'/`n2'
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qui replace `m' = `m'[`n21' - _n] in `n1'/`n2'
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qui replace `d' = `d'[1] in `n2'
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qui replace `m' = `m'[1] in `n2'
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if "`truncate'" != "" {
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tempvar tm1 tm2
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qui gen `tm2' = _n
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qui gen `tm1' = sign(`d')
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gsort -`tm1' `m'
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local tm = `m'[1]
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local td = `d'[1]
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sort `tm2'
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qui replace `d' = `td' in `n2'
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qui replace `m' = `tm' in `n2'
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}
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if "`by'" != "" {
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local iss = `iss' + `scale'
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local isw = `isw' + `wwidth'
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}
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* saving option
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if `j' * `k' == 1 & "`saving'" != "" {
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local c = index("`saving'",",")
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local cs " "
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if index("`saving'",", ") != 0 { local cs "" }
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if `c' != 0 { local saving = substr("`saving'",1,`c' - 1) /*
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*/ + "`cs'" + substr("`saving'",`c' + 1, .) }
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local savfile : word 1 of `saving'
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local replace : word 2 of `saving'
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if "`replace'" == "replace" { capture erase "`savfile'.gph" }
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capture confirm new file "`savfile'.gph"
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if _rc == 0 { local saving ", saving(`savfile')" }
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else {
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local rc = _rc
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di in re "file `savfile'.gph exists."
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di in bl "use another filename or add 'replace' option."
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exit `rc'
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}
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}
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if "`byl'" != "" { local bylbyl byl("`byl'") }
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tempname ixlixl
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global ixlixl "`ixl'"
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* do plot
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if `j' * `k' == 1 { gph open `saving' }
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viogph `d' `m', j(`j') k(`k') byn(`byn') ixmin(`ixmin') /*
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*/ ixmax(`ixmax') q50(`q50') ismin(`ismin') ismax(`ismax') /*
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*/ nvars(`nvars') gp(`gp') `bylbyl' uav(`uav') lav(`lav') /*
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*/ q75(`q75') q25(`q25') rou(`round') `options'
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if `j' >= `byn' & `k' >= `nvars' { gph close }
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* display stats
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if `byn' == 1 {
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di _n in gr "Statistics for ``k'':"
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di in gr " LAV: " in ye `lav' _c
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di in gr " Q25: " in ye `q25' _c
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di in gr " Q75: " in ye `q75' _c
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di in gr " UAV: " in ye `uav'
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di in gr " Min: " in ye `ixmin' _c
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di in gr " Median: " in ye `q50' _c
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di in gr " Max: " in ye `ixmax' _c
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di in gr " n: " in ye `ixn'
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di _n in gr "For ``k'', density computed using:"
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di in gr " Kernel: " in ye "`kernel'" _c
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di in gr " N: " in ye `n' _c
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di in gr " Scale: " in ye %6.2f `scale' _c
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di in gr " Width: " in ye %6.2f `wwidth'
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}
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local j = `j' + 1
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} /* end of loop for each `by' group */
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if "`by'" != "" {
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di _n in gr "Statistics (all groups combined): "
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di in gr " Min: " in ye `ismn' _c
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di in gr " Q25: " in ye `is25' _c
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di in gr " Median: " in ye `ism' _c
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di in gr " Q75: " in ye `is75' _c
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di in gr " Max: " in ye `ismx' _c
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di in gr " n: " in ye `isn'
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di _n in gr "Densities computed using:"
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di in gr " Kernel: " in ye "`kernel'" _c
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di in gr " N: " in ye `n' _c
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di in gr " Ave. Scale: " in ye %6.2f `iss' / `byn' _c
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di in gr " Ave. Width: " in ye %6.2f `isw' / `byn'
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local scale = `iss' / `byn'
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local wwidth = `isw' / `byn'
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local ixmin = `ismn'
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local lav = .
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local q25 = `is25'
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local q50 = `ism'
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local q75 = `is25'
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local uav = .
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local ixmax = `ismx'
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local ixn = `isn'
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}
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local k = `k' + 1
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}
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* save globals
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global S_1 "`kernel'"
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global S_2 = `n'
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global S_3 = `wwidth'
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global S_4 = `scale'
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global S_5 = `ixmin'
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global S_6 = `lav'
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global S_7 = `q25'
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global S_8 = `q50'
|
||
|
|
global S_9 = `q75'
|
||
|
|
global S_10 = `uav'
|
||
|
|
global S_11 = `ixmax'
|
||
|
|
global S_12 = `ixn'
|
||
|
|
|
||
|
|
macro drop ixlixl b1flg t2flg
|
||
|
|
end
|
||
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|
||
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|
||
|
|
program define viogph
|
||
|
|
version 5.0
|
||
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|
||
|
|
local varlist "req ex min(2) max(2)"
|
||
|
|
#delimit ;
|
||
|
|
local options "J(int 1) K(int 1) BYN(int 1) TItle(str) B1title(str)
|
||
|
|
IXMIN(real 0.0) IXMAX(real 0.0) Q50(real 0.0) ISMIN(real 0.0)
|
||
|
|
ISMAX(real 0.0) NVARS(int 0) GP(int 3) BYL(str) UAV(real 0.0)
|
||
|
|
LAV(real 0.0) Q75(real 0.0) Q25(real 0.0) Pen(str) Symbol(str)
|
||
|
|
Connect(str) T1title(str) T2title(str) YLAbel(str) YSCale(str)
|
||
|
|
ROUnd(real 0.0) *" ;
|
||
|
|
#delimit cr
|
||
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|
||
|
|
parse "`*'"
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||
|
|
parse "`varlist'", parse(" ")
|
||
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|
|
||
|
|
local d "`1'"
|
||
|
|
local m `2'
|
||
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|
||
|
|
local t2t2 = $t2flg
|
||
|
|
local b1b1 = $b1flg
|
||
|
|
local ixl = "$ixlixl"
|
||
|
|
|
||
|
|
* set up the plot
|
||
|
|
|
||
|
|
if "`pen'" == "" { local pen "2" }
|
||
|
|
if "`symbol'" == "" { local symbol "i" }
|
||
|
|
if "`connect'" == "" { local connect "l" }
|
||
|
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|
||
|
|
if `j' == 1 & `k' == 1 {
|
||
|
|
if "`t1title'" == "." { local t1title t1t(" ") }
|
||
|
|
else if "`t1title'" == "" { local t1title t1t(Violin Plot) }
|
||
|
|
else { local t1title t1t("`t1title'") }
|
||
|
|
if `byn' > 1 { local t1title t1t("`ixl'") }
|
||
|
|
}
|
||
|
|
if `j' > 1 | `k' > 1 { local t1title t1t(" ") }
|
||
|
|
|
||
|
|
if `j' == 1 & `k' == 1 {
|
||
|
|
if "`t2title'" != "" {
|
||
|
|
local t2title t2t("`t2title'")
|
||
|
|
local t2t2 1
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if `t2t2' == 1 { local t2title t2t(" ") }
|
||
|
|
|
||
|
|
if "`title'" == "" { local title "`b1title'" }
|
||
|
|
if "`title'" != "" {
|
||
|
|
local b1title b1t(" ")
|
||
|
|
local b1b1 1
|
||
|
|
}
|
||
|
|
|
||
|
|
if "`ylabel'" == "" { local yl = "yla(" /*
|
||
|
|
*/ + string(round(`ixmin',`round')) + "," /*
|
||
|
|
*/ + string(round(`q50',`round')) + "," /*
|
||
|
|
*/ + string(round(`ixmax',`round')) + ")" }
|
||
|
|
else { local yl yla(`ylabel') }
|
||
|
|
if index("`options'","yla") > 0 { local yl "" }
|
||
|
|
|
||
|
|
if "`yscale'" == "" { local ys ysc(`ismin',`ismax') }
|
||
|
|
else { local ys ysc(`yscale') }
|
||
|
|
|
||
|
|
* do plot
|
||
|
|
|
||
|
|
* draw density traces
|
||
|
|
local pw = min(.33, 1 / (`byn' * `nvars') )
|
||
|
|
local pw = 32000 * `pw'
|
||
|
|
local p1 = (`j' * `k' - 1) * `pw'
|
||
|
|
local p2 = `p1' + `pw'
|
||
|
|
#delimit ;
|
||
|
|
graph `m' `d', bbox(0,`p1',23063,`p2',923,444,0) s(`symbol')
|
||
|
|
c(`connect') pe(`pen') `t1title' `yl' gap(`gp') `ys' `t2title'
|
||
|
|
`b1title' b2t(" ") `options' ;
|
||
|
|
#delimit cr
|
||
|
|
tempname ysca yloc xloc
|
||
|
|
scalar `ysca' = _result(5)
|
||
|
|
scalar `yloc' = _result(6)
|
||
|
|
scalar `xloc' = _result(8)
|
||
|
|
* draw label
|
||
|
|
local r1 = 20700
|
||
|
|
local r2 = 21700
|
||
|
|
local c1 = 21500
|
||
|
|
if `b1b1' == 1 {
|
||
|
|
local r1 = `r1' - 1000
|
||
|
|
local r2 = `r2' - 1000
|
||
|
|
local c1 = `c1' - 1000
|
||
|
|
}
|
||
|
|
gph clear `r1' `p1' `r2' `p2'
|
||
|
|
gph pen 1
|
||
|
|
local xlo = `xloc'
|
||
|
|
if `byn' == 1 { gph text `c1' `xlo' 0 0 `ixl' }
|
||
|
|
else { gph text `c1' `xlo' 0 0 `byl' }
|
||
|
|
* do title
|
||
|
|
if "`title'" != "" {
|
||
|
|
gph font 1300 650
|
||
|
|
gph text 22100 10 0 -1 `title'
|
||
|
|
gph font 923 444
|
||
|
|
}
|
||
|
|
* draw adjacent values line
|
||
|
|
local r1 = `uav' * `ysca' + `yloc'
|
||
|
|
local r2 = `lav' * `ysca' + `yloc'
|
||
|
|
local c1 = `xloc'
|
||
|
|
local c2 = `c1'
|
||
|
|
gph pen `pen'
|
||
|
|
gph line `r1' `c1' `r2' `c2'
|
||
|
|
* draw quartile box (shaded)
|
||
|
|
local r1 = `q75' * `ysca' + `yloc'
|
||
|
|
local r2 = `q25' * `ysca' + `yloc'
|
||
|
|
local c1 = -250 + `xloc'
|
||
|
|
local c2 = 250 + `xloc'
|
||
|
|
gph box `r1' `c1' `r2' `c2' 1
|
||
|
|
* draw median
|
||
|
|
local r1 = `q50' * `ysca' + `yloc' + 100
|
||
|
|
local r2 = `q50' * `ysca' + `yloc' - 100
|
||
|
|
local c1 = -500 + `xloc'
|
||
|
|
local c2 = 500 + `xloc'
|
||
|
|
gph box `r1' `c1' `r2' `c2' 0
|
||
|
|
|
||
|
|
global t2flg = `t2t2'
|
||
|
|
global b1flg = `b1b1'
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
program define kd
|
||
|
|
version 5.0
|
||
|
|
* -> Kernel Density code stolen from kdensity.ado
|
||
|
|
|
||
|
|
local varlist "req ex min(1) max(5)"
|
||
|
|
local weight "fweight aweight"
|
||
|
|
#delimit ;
|
||
|
|
local options "N(integer 50) WW(real 0.0) J(int 1)
|
||
|
|
BIweight COSine EPan GAUss RECtangle PARzen TRIangle" ;
|
||
|
|
#delimit cr
|
||
|
|
|
||
|
|
parse "`*'"
|
||
|
|
parse "`varlist'", parse(" ")
|
||
|
|
|
||
|
|
local ix "`1'"
|
||
|
|
local d "`2'"
|
||
|
|
local m "`3'"
|
||
|
|
local use "`4'"
|
||
|
|
local byg "`5'"
|
||
|
|
|
||
|
|
tempvar y z
|
||
|
|
qui gen double `y' = .
|
||
|
|
qui gen double `z' = .
|
||
|
|
|
||
|
|
tempname delta wid wwidth
|
||
|
|
scalar `wwidth' = `ww'
|
||
|
|
scalar `delta' = (_result(6) - _result(5) + 2 * `wwidth') /*
|
||
|
|
*/ / (`n' - 1)
|
||
|
|
scalar `wid' = _result(1) * `wwidth'
|
||
|
|
qui replace `m' = _result(5) - `wwidth' + (_n - 1) /*
|
||
|
|
*/ * `delta' in 1/`n'
|
||
|
|
|
||
|
|
local i 1
|
||
|
|
if "`biweigh'" != "" {
|
||
|
|
local con1 = .9375
|
||
|
|
while `i' <= `n' {
|
||
|
|
qui replace `z' = (`ix' - `m'[`i']) / (`wwidth') /*
|
||
|
|
*/ if `use' & `byg' == `j'
|
||
|
|
qui replace `y' = `con1' * (1 - (`z')^2)^2 /*
|
||
|
|
*/ if abs(round(`z',1e-8)) < 1
|
||
|
|
qui summ `y' [`weight'`exp'] if `y' != .
|
||
|
|
qui replace `d' = (_result(3) * _result(1)) / `wid' in `i'
|
||
|
|
qui replace `y' = .
|
||
|
|
local i = `i' + 1
|
||
|
|
}
|
||
|
|
qui replace `d' = 0 if `d' == . in 1/`n'
|
||
|
|
}
|
||
|
|
else if "`cosine'" != "" {
|
||
|
|
while `i' <= `n' {
|
||
|
|
qui replace `z' = (`ix' - `m'[`i']) / (`wwidth') /*
|
||
|
|
*/ if `use' & `byg' == `j'
|
||
|
|
qui replace `y' = 1 + cos(2 * _pi * `z') /*
|
||
|
|
*/ if abs(round(`z',1e-8)) < 0.5
|
||
|
|
qui summ `y' [`weight'`exp'] if `y' != .
|
||
|
|
qui replace `d' = (_result(3) * _result(1)) / `wid' in `i'
|
||
|
|
qui replace `y' = .
|
||
|
|
local i = `i' + 1
|
||
|
|
}
|
||
|
|
qui replace `d' = 0 if `d' == . in 1/`n'
|
||
|
|
}
|
||
|
|
else if "`triangl'" != "" {
|
||
|
|
while `i' <= `n' {
|
||
|
|
qui replace `z' = (`ix' - `m'[`i']) / (`wwidth') /*
|
||
|
|
*/ if `use' & `byg' == `j'
|
||
|
|
qui replace `y' = 1 - abs(`z') if abs(round(`z',1e-8)) < 1
|
||
|
|
qui summ `y' [`weight'`exp'] if `y' != .
|
||
|
|
qui replace `d' = (_result(3) * _result(1)) / `wid' in `i'
|
||
|
|
qui replace `y' = .
|
||
|
|
local i = `i' + 1
|
||
|
|
}
|
||
|
|
qui replace `d' = 0 if `d' == . in 1/`n'
|
||
|
|
}
|
||
|
|
else if "`parzen'" != "" {
|
||
|
|
local con1 = 4 / 3
|
||
|
|
local con2 = 2 * `con1'
|
||
|
|
while `i' <= `n' {
|
||
|
|
qui replace `z' = (`ix' - `m'[`i']) / (`wwidth') /*
|
||
|
|
*/ if `use' & `byg' == `j'
|
||
|
|
qui replace `y' = `con1' - 8 * (`z')^2 + 8 * abs(`z')^3 /*
|
||
|
|
*/ if abs(round(`z',1e-8)) <= .5
|
||
|
|
qui replace `y' = `con2' * (1 - abs(`z'))^3 /*
|
||
|
|
*/ if abs(round(`z',1e-8)) > .5 /*
|
||
|
|
*/ & abs(round(`z',1e-8)) < 1
|
||
|
|
|
||
|
|
qui summ `y' [`weight'`exp'] if `y' != .
|
||
|
|
qui replace `d' = (_result(3) * _result(1)) / `wid' in `i'
|
||
|
|
qui replace `y' = .
|
||
|
|
local i = `i' + 1
|
||
|
|
}
|
||
|
|
qui replace `d' = 0 if `d' == . in 1/`n'
|
||
|
|
}
|
||
|
|
else if "`gauss'" != "" {
|
||
|
|
local con1 = sqrt(2 * _pi)
|
||
|
|
while `i' <= `n' {
|
||
|
|
qui replace `z' = (`ix' - `m'[`i']) / (`wwidth') /*
|
||
|
|
*/ if `use' & `byg' == `j'
|
||
|
|
qui replace `y' = exp(-0.5 * ((`z')^2)) / `con1'
|
||
|
|
qui summ `y' [`weight'`exp']
|
||
|
|
qui replace `d' = (_result(3) * _result(1)) / `wid' in `i'
|
||
|
|
local i = `i' + 1
|
||
|
|
}
|
||
|
|
qui replace `d' = 0 if `d' == . in 1/`n'
|
||
|
|
}
|
||
|
|
else if "`rectang'" != "" {
|
||
|
|
while `i' <= `n' {
|
||
|
|
qui replace `z' = (`ix' - `m'[`i']) / (`wwidth') /*
|
||
|
|
*/ if `use' & `byg' == `j'
|
||
|
|
qui replace `y' = 0.5 if abs(round(`z',1e-8)) < 1
|
||
|
|
qui summ `y' [`weight'`exp'] if `y' != .
|
||
|
|
qui replace `d' = (_result(3) * _result(1)) / `wid' in `i'
|
||
|
|
qui replace `y' = .
|
||
|
|
local i = `i' + 1
|
||
|
|
}
|
||
|
|
qui replace `d' = 0 if `d' == . in 1/`n'
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
local con1 = 3 / (4 * sqrt(5))
|
||
|
|
local con2 = sqrt(5)
|
||
|
|
while `i' <= `n' {
|
||
|
|
qui replace `z' = (`ix' - `m'[`i']) / (`wwidth') /*
|
||
|
|
*/ if `use' & `byg' == `j'
|
||
|
|
qui replace `y' = `con1' * (1 - ((`z')^2 / 5)) /*
|
||
|
|
*/ if abs(round(`z',1e-8)) <= `con2'
|
||
|
|
qui summ `y' [`weight'`exp'] if `y' != .
|
||
|
|
qui replace `d' = (_result(3) * _result(1)) / `wid' in `i'
|
||
|
|
qui replace `y' = .
|
||
|
|
local i = `i' + 1
|
||
|
|
}
|
||
|
|
qui replace `d' = 0 if `d' == . in 1/`n'
|
||
|
|
}
|
||
|
|
end
|
||
|
|
|