input str10 String Number"1"1"2"2"3"3"4"4end*导致问题**1.条件筛选 dropifString=="1"//字符型dropifNumber==1//数值型/* 字符型数据要加上引号 */**2.运算 gen Add=String+Number/* type mismatch r(109); */gen Number_2=Number gen Add=Number+Number_2//数值运算gen String_2=String...
示例public class Tester { public static void main(String[] args) { Object[] dataArray = new Object[...3]; dataArray[0] = new Integer(0); dataArray[1] = new St...
verion1.0--2/28/05--pbecapprogramdropsgmediation3programdefinesgmediation3,rclass/*sobel-goodmanmediationtests*/version15.0syntaxvarlist(max=1)[if][in],iv(varlistnumericmax=1)///mv(varlistnumericmax=1)[cv(varlistnumeric)quietly///level(integer95)prefix(string)]marksampletousemarkout`touse' `...
Stata官方建议我们合理设置数据类型: Stata keeps data in memory, and you should record your data as parsimoniously (吝啬地) as possible. If you have a string variable that has maximum length 6, it would waste memory to store it as a str20. Similarly, if you have an integer variable, it ...
sdid_event Y G T D [if] [in] [, effects(integer0) disag vce(string) brep(integer50)] 其中: Y 是结果变量。 G 是单位/组变量。 T 是时间变量。 D 是处理变量。 与sdid一样,数据集必须是一个平衡面板,且D必须是二进制且不可逆转的处理变量,这意味着被处理的单位不能改变其处理状态。
Allow the users to download packages that include more than one program file Encourage Stata programmers to comment their programs and share their knowledge within their Stata packages This archive receives monthly update at the end of each month, based onthe latest updates on SSC server. If your...
static String[] getLabels(String name) Get the labels for a specified value-label name. static String[] getNames() Get the names of all value labels in the current dataset. static Map<Integer,String> getValueLabels(String name) Deprecated. This method is deprecated because it is not compati...
Stata日期和时间处理指南说明书 in Stata Gabriela Ortiz Applied Econometrician StataCorp LLC 1
Integer (int) Long Float Double String (including Unicode, very long strings and BLOBs) Dates and times Business calendars Watch Create a date variable from a date stored as a string. Long string support Up to 2 billion character long strings Coalescing of duplicate values to save memor...
现在尝试pnupt age。这次Stata并未对age变量报错,但提示 ‘option generate() required’。带参数的选项需要指定参数类型(integer,real,string,name)和默认(不强制)值。generate需要一个name,没有默认值。尝试pnupt age, gen(2)。Stata会抱怨说2不是一个变量名。