其中ParkName是column方式读取,State和Year是list方式读取,Acreage是formatted方式读取,输出结果如下所示: 混合读取方式有时会遇到问题:SAS通过一个指示器标注位置,来读取原始数据的一行,但每种读取方式对指示器的使用稍有不同。List方式下,SAS自动找到非空格区域并开始读取;column方式下,SAS读取你所指定的特定位置;info...
from->on->join->where->group by->sum、count、max、avg->having->select->distinct->order by->limit WHERE从句的操作在SELECT从句前,HAVING从句的执行在SELECT与GROUP BY从句之后。 SQL 结构化查询语言 (Structured Query Language) 1. SQL语言在SAS中是通过PROC SQL 来实现的。可以实现: 制作报表和表; 生...
第一步创建myapp_zh_CN.smd,使用Unicode转义字符,将utf-8原文件转换成Uncode */%macroSMD2ASCII(inf=,outf=,inencoding=,lrecl=);data _null_;attrib tmp length=$&lrecl;infile"&inf"lrecl=&lrecl;input;file"&outf"lrecl=&lrecl;tmp=kpropdata(_infile_,"uesc","&inencoding","ascii");put tmp;ru...
proc sql noprint;select name into:translist separated by" "from _varstemp11;quit;/*衍生数据集行号:作为索引变量,数据集转置key变量*/data _varstemp17;set&libname..&memname.;temp_line_id=_n_;run;proc transpose data=_varstemp17 out=_varstemp17 prefix=value;by temp_line_id;var&translist....
n or N adds digits, the underscore character, and English letters to the list of characters. o or O processes the second and third arguments once rather than every time the COMPRESS function is called. Using the O modifier in the DATA step (excluding ...
在Base SAS中,可以在DATA步语句、WHERE表达式、宏语言语句、PROC REPORT 和结构化查询语言(SQL)中使用SAS函数。 在一些统计过程也可以使用SAS 函数。 基本的SAS函数语法如下所示: function-name (argument-1<, ...argument-n>) function-name (OF...
Syntax:SCAN(string, count [,list-of-delimiters [,modifier]]) 参数解释: String:指定字符常量、变量或表达式。 Count:具有整数值的非零数值常量、变量或表达式。整数值指定要SCAN选择的字符串中单词的数字。例如,值1表示第一个单词,值2表示第二个单词,以此类推。以下规则适用: 如果计数为正数,则SCAN从左到右...
dataexample1_4; set example1_3; keep timelogprice; where time>='01mar2005'd;procprintdata=example1_4;run; 结果 4、 缺失值插值 假设上例3月1日price值观察值缺失,运行如下程序插补 data example1_5; input price; time=intnx( 'month','01jan2005'd, _n_-1); format time date.; cards; ...
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