我是R的新手,我想将此SAS宏转换为R: %Macro NumericToString(var,lenString); /* Convert A NUMERIC variable TO STRING */ /* @Var : NAME OF THE NUMERIC VARIABLE THAT WE WANT TO CONVERT ON STRING*/ /*@LenString : NEW LENGTH OF THE STRING VARIABLE*/ %global newlabel; LENGTH &var._n $...
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 # convert from numeric to string by put data class; set...
LENGTH returns a value of 1. If string is a numeric constant, variable, or expression_r(either initialized or uninitialized), SAS automatically converts the numeric value to a right-justified character string by using the BEST12.
Transform between numeric and String data using a Format. This transform converts between numeric data and Strings using the format method of a Format object, or converts a String to a number using the parse methods. The Format can be a NumberFormat, any Format instance returned from SAS...
REXX keeps all its variable values, even numeric values, as character strings. Each variable value is kept internally as a pointer to a character string coupled with an int containing the length of the string. For example, given the following REXX statement, x is a string of length 3 with...
Unless otherwise notedR/all.is.numeric.RR/importConvertDateTime.RR/in.opererator.RR/makeNames.RR/read.xport.RJr.src/SASxport.csrc/SASxport.h
These are the functions used to process character or text values.ExamplesThe below SAS program shows the use of character functions.data character_functions; /* Convert the string into lower case */ lowcse_ = LOWCASE('HELLO'); /* Convert the string into upper case */ upcase_ = UPCASE(...
在proc SQL (SAS)中将时间(date类型)转换为numeric 在Google Sheets中将文本转换为日期 在excel中将文本转换为日期格式 在SAS中将多个列转置为行 在SQL Server中将文本转换为日期时出现意外错误 如何在SAS中将字符串转换为日期? 在普适SQL中将数字转换为日期 在SQL中将浮点数转换为日期? 在matillion工具中将文本转...
做做merging, combine, convert time format, subset data(尤其是从几十万的数据库里调用需要的数据和变量)完全是小case. 这一点私以为stata的功能是远远比不上的。sas里面还可以run sql. 如果需要join多方面来源的复杂数据,sql的功能是远高于stata的。 R的强项在于数据分析和数据可视化(同stata相似),并且这两项...
Convert Numeric Variable to Date SAS Formats SAS Date Formats and Informats Extract Date from DateTime Proc Format First. and Last. Variables Proc Sort Tutorial Proc Sort : Identifying and storing unique and duplicate values Proc Means : Step-by-step Guide ...