("wrong type:numeric na=" & na & ";string sa=" & sa) ' test for nonexistent scalars na = stataobj.ScalarNumeric("not_exist") ' na is misval 3.9.3 Get saved results from Stata Methods StReturnNumeric() and StRet
[ U ] 18 Programming Stata 9 Because the expression can be either numeric or string, what is the difference between the following statements? . local a "example" . local b = "example" Both statements store example in their respective macros. The first does so by a simple copy operation,...
In versions Stata 10 or later, string variables are shown in a red font, whereas numeric variables are shown in either black or blue font. In the Chapter 1 Data.dta file, you will see that only the variable religoth is a string variable. Chapter 1 Getting to Know Stata 12—15 ...
The commands here are also faster than the commands provided byftools; further,gtoolscommands take a mix of string and numeric variables, which is a limitation offtools. (Note I could not get several parts offtoolsworking on the Linux server where I have access to Stata/MP; hence the IC ...
How can I quickly convert many string variables to numeric variables? How can I turn a string variable containing dates into a date variable Stata can recognize? How can I extract a portion of a string variable using regular expressions? Error messages How can I handle the matsize too small...
of both. Thus, you can't do something likefcollapse price, by(make foreign)because make is string and foreign is numeric. This is due to a limitation in Mata and is probably a hard restriction. As a workaround, just run something likefegen id = group(make), to create a numeric ID....
数据转置41 4.6 复习与作业42 5 函数与运算符 44 5.1 运算符exp44 5.2 函数概览function 46 5.3 数学函数math functions47 2 1入门 5.4 字符函数string functions50 5.5 分类操作by 51 6 程序 54 6.1 标准的程序文件格式54 6.2 创造自己的命令:与STATA互致问候 54 6.3 暂元Macros: local/global57 6.4 自带...
stringsbynumericvariableswherepossible.See[D]destring. ignore(),force,float,percent;see[D]destring. Remarksandexamples stata split is used to split a string variable into two or more component parts, for example, “words”. You might need to correct a mistake, or the string variable might be...
Recoding Variables The recode command is used to group a numeric variable into categories. Suppose for example a fertility survey has age in single years for women aged 15 to 49, and you would like to code it into 5-year age groups. You could, of course, use something like gen age5= ...
numeric variable areavar then the master dataset should contain also variable A basemap dataset is a Stata dataset that contains the definition of the polygon or polygons making up the ID X Y EMBEDDED 1 0 1 10 30 0 1 10 50 0 1 30 50 0 1 30 30 0 1 10 30 0 2 0 2 10 10 0 ...