TRANWRD函数可以把字符串里的指定字符转换成另外一指定字符。 用法:TRANWRD(Source, From, To),Replace from character sting in source with to character string。语句TRANWRD(pct,’( ‘,’ (‘),把pct=“( 10.1%)”变成pct=“ (10.1%)”,也就是把...
ANYFIRST Function Searches a character string for a character that is valid as the first character in a SAS variable name under VALIDVARNAME=V7, and returns the first position at which that character is found. ANYGRAPH Function Searches a character string for a graphical character, and returns ...
Had a quick question - I need to remove punctuation and replace characters with a space (i.e.: if I have a field that contains a * I need to replace it with a white space). I can't seem to get it right - I was originally doing this to just remove it, but I've found that...
ANYNAME Function Searches a character string for a character that is valid in a SAS variable name under VALIDVARNAME=V7, and returns the first position at which that character is found. ANYPRINT Function Searches a character string for a printable character, and returns the first position at w...
(7)upcase(string)/*convert all the letter into upcase*/ 二、字符函数 1、COMPBL(X) 去掉字符串中各字符之间的多个空格为一个空格 The COMPBL function removes multiple blanks in a character string by translating each occurrence of two or more consecutive blanks...
These terms are used in the descriptions of string utility functions: string is zero or more contiguous characters terminated by a null byte. The first character of a string is at position 0. Functions that return the int or unsigned position of a character in a string compute the position...
代码中还使用了REPLACE选项,表示当OUT=指定的数据集存在时覆盖该数据集。GETNAMES语句表示是否从该文件中的第一行读取变量,默认为YES,表示读取;值为NO表示不读取,这时IMPORT过程会自动产生名为F1、F2、F3等的变量。 DATAROW=语句也会经常使用,用于指定IMPORT语句开始读数据的行号。默认情况下,当GETNAMES=NO时,DATA...
说明:The length of a string is equal to the position of the rightmost nonblank character in the string. If a string is entirely blank, its length value is set to 1. 中文:所计算的长度是从第一个子都到字符串最右端的一个非空字符为止,如果字符串为空,则长度设为1 ...
string and numeric variable conversion 在R中,转成字符串用as.character(),转成数值型则是as.numeric() 在SAS中,大部分转化是用out以及input实现的,以sashelp的class数据集为例,可以看到Age,Height,Weight是数值型(可以根据变量值是否右对齐来判断),然后用put将其从数值型转化为字符串型 ...
功能:Replaces all occurrences of a substring in a characterstring. 语法:TRANWRD(source, target, replacement) 使用replacement代替source中出现的所有target。 可以用tranwrd来移除字符串中的特殊字符/空格。 如:newtext=tranwrd(mytxt, ',,,', ',');移除重复的逗号。