day(date)返回某一时间的天数,date为某一时间的日期 如date=01JAN1960,返回的值为1; weekday(date)返回某一周的星期几,date为某一时间的日期,但与现在日历中看到的星期有所差别 如date=24AUG2022,返回的值为4,我们所用的时间显示的是周三,...
1.truncation 2.character 3.date and time 4.mathematical 5.special 6.sample statistics 7.arithmetic 8.financial 9.random number 10.state and ZIP code 二、Variable Lists 在SAS Function中使用OF Variable Lists: 三、Manipuating Character Values substr(varc,location,length):截取字符串; left\right(va...
如:EarthDay08 = ‘ 22APR208 ’D;日期格式为DATE w.将日期用引号包围,然后后面加”D“,作为日期标识符。该表达式生成了一个名为EarthDay08的变量,其值 等于 SAS Date value ”April 22,2008“。 FunctionsSAS Datefunctions可以执行一系列方便的操作。如:计算年龄AGE = INT ( YRDIF ( BirthDate, TODAY( ...
The DATEPART function determines the date portion of the SAS datetime value and returns the date as a SAS date value, which is the number of days from January 1, 1960. datepart函数接受的是sas的datetime。timepart函数同理,获取时间部分。 /*create dataset*/ data original_data; input some_dateti...
Using date and time constants and variables in SAS(R) is sometimes difficult to grasp even for the advanced SAS user. This tutorial will cover how to use date and time constants, INFORMATS, FORMATS, functions, using PICTURE format directives, how to set up date ranges in user formats, and...
SAS Functions是SAS 编程语言的一个组成部分,可以接受参数,执行运算或其他操作,返回一个value。 返回值可以用在赋值语句或expression的任何位置。 CALL Routines 定义: 一个CALL Routines 改变 参数值或执行其他系统functions。 CALL routines和functions类似,但是不能将CALL Routines用于assignment statements 或 expressions...
%let bill_month = '01dec1999'd ; run ; data invoices: set acc.newbills ; if install_date < &bill_month ; Transforming SAS Variables to SAS Date/Time Variables SAS numeric or text variables can be converted to SAS dates by using the INPUT, and PUT functions or by invoking the MDY ...
DATE函数以SAS日期值的形式返回当前日期。 DATE Function Returns the current date as a SAS date value. DATETIME函数以SAS DATETIME值的形式返回当前日期和时间。 DATETIME Function Returns the current date and time of day as a SAS datetime value. DHMS函数从日期、小时、分钟和秒值中返回SAS datetime值。
· The LENGTH and LENGTHN functions return the same value for non-blank character strings. LENGTH returns a value of 1 for blank character strings, whereas LENGTHN returns a value of 0. · The LENGTH function returns the length of a character string, ex...
date, time, or datetime value by a given interval, and returns a date, time, or datetime value JULDATE Returns the Julian date from a SAS date value JULDATE7 Returns a seven-digit Julian date from a SAS date value MDY Returns a SAS date value from month, day, and year values MINUTE...