1、encode varname, gen (newvarname)，重新⽣成⼀个新的变量，内容与字符型的相同。2、 Convert string variables to numeric variables：destring [varlist] , {generate(newvarlist)|replace} [destring_options]字符转数值 Convert numeric variables to string variables：tostring varlist , {generate(new...
如果字符型变量中包含非数值字符,并且这些字符是有意义的(例如,表示不同的类别),则不应该将其转换为数值型变量。在这种情况下,可以考虑使用因子变量(factor variables)或虚拟变量(dummy variables)来处理这些类别。 引用: Stata: Convert string variable to numeric ...
destring String,gen(Str2Num)tostring Number,gen(Num2Str) 初学者总是容易将destring和encode混淆,其实两者的用途是有区别的: destring: Convert string variables to numeric variables and vice versa. encode: Encode string into numeric and vice versa. encode主要用于将数据进行编码、分组,将连续性变量转换成分组...
force参数的作用是“convert nonnumeric strings to missing values” === destring var2,force replace 这个命令不就行了 ? 要是直接用这个,对于是负数的内容会直接missing === // 如何将stata中的字符型数据转为数值型 * Example generated by -dataex-. To install: ssc install dataex clear input str5 t...
使用Stata 进行数据处理十分便捷,其中的reshape命令就是用于实现数据形态之转换的,即 Convert data fromwidetolongform and vice versa。不论哪种数据形态,数据集中均包含两种形态下的全部信息,区别在于数据呈现的方式。 本文是对reshape命令的介绍,力图通过10个示例全面介绍该命令的使用方式以及需要注意的问题。
String variables 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 mat...
destring : convert string variables to numeric foreach : loop over elements of a list, performing a block of code forvalues : loop over a numlist, performing a block of code local : define or modify a local macro (scalar variable)
Many Stata users also wish to convert numeric data to strings and keep the leading zeros, which is good for U.S. Social Security numbers, times, dates, etc. This conversion can be done using thestring()function with an option for the format. ...
This is easy to fix. If you have a string variable and want to convert it to a numeric variable, you can use the encode command. If you have a string variable that has only numbers in it, then you can alternatively use the real() function. ...
force参数的作用是“convert nonnumeric strings to missing values” === destring var2,force replace 这个命令不就行了 ? 要是直接用这个,对于是负数的内容会直接missing === <hr/>// 如何将stata中的字符型数据转为数值型 * Example generated by -dataex-. To install: ssc install dataex clear...