Loop over consecutive values forvalues 只能用于数值的循环 *Synax forvalues lname = range { Stata commands referring to `lname' } 对于while中方程求解例子,我们也可以用forvalues来做,假如我们猜到解在1-3范围内 forvalues x_est = 1(0.0001)3{ if abs(`x_est' ^ 2 - 4 * `x_est' + 4 - ...
local(alist) di "`alist'" qui{ // Loop over the events and make a data set for each one foreach j of numlist `alist' { // Preserve dataset preserve // run function create_sub_exp, /// timeID(year) /// groupID( statefip) /// adoptionTime(adopt_year) /// focalAdoptionTime...
ckvar Module to allow error checking routines to easily be defined and attached directly to variables dirifit Module to fit a Dirichlet distribution
交叠处理下,异质性处理效应使得TWFE有偏,很多新的估计量已经出现了。 堆叠DID(stacked did)是应对交叠处理偏误的一种方法。近些年,在应用研究中广泛采用,例如,Cengiz et al.,2019; Deshpande and Li, 2019; Butters et al., 2022; Callison and Kaestner, 2014。我对堆叠 DID 产生兴趣是江西财大的王岳龙老师...
Resultssets in resultsframes in Stata 16–plus Frame 5 of 21 Example 1: Using xframeappend to append multiple resultsframes In the xauto data, we start by creating an empty frame frankie, and then loop over 4 variables, whose means we want to estimate. For each variable, we use regress...
Loop over a variable list (varlist): data new(drop= i); set new; array raymond {4} var1 var2 var3 var4; do i = 1 to 4; if raymond{i} = 99 then raymond{i} = . ; end; run; Check out this array example in the SAS programming examples page. foreach i of varlist var1 ...
st_viewvars()Variables and observations of view st_vlexists()Use and manipulate value labels stata()Execute Stata command stataversion()Version of Stata being used strdup()String duplication strlen()Length of string in bytes ustrlen()Length of Unicode string in Unicode characters ...
**Minimalistic Box Plot (Over Category & By Type) import delimited "https://raw.githubusercontent.com/tidyverse/ggplot2/master/data-raw/mpg.csv", clear levelsof cyl, local(cylinders) local catcount: word count `cylinders' forvalues i = 1/`catcount' { colorpalette tableau, nograph n(`cat...
According to some, usingna.omiton their data is not feasible as it results in too few rows to be useful. However, this can be resolved by omittingNA_integer_andNA_real_while retainingNA_character_. Simply addNAas a factor level and loop through the variables in your data frame to accompl...
国外大学讲义：Stata Programing(stata编程)Stata8,Programing HeinStigumPresentation,dataandprogramsat:://folk.uio.no/heins/ Jun-21 H.S.1 Programing •Programingexamples –Getanduseresultsfromcommands–Automatetasks–Definefunctions–Definenewcommands •Twolanguages –StataMacrolanguage–Mata Forsmallproblems...