全部索引的删除,可以用调用datasets用_all_来进行删除。 —————————————————————————————————— 二、数据集操作 数据集操作算是数据处理的精髓,一般来说可以用到以下的一些语句: /*data,创建数据集*//*set,读数据,纵向合并数据集*//*by,
Be Careful When You Merge SAS Datasets!Obs12345Paper PO
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put "All ID's match in both files"; run; IN是个很好用的关键词,灵活运用可以得到很多想要的结果,例如我们要实现SQL中的right join 或left join的功能: data missing; merge one two(in=Intwo); **right join功能; by Patno; if Intwo; run;...
I have a multiple (n=1000) datasets in work library. All these datasets have same variable. ( var1, var2, var3, var5, var6,..) and I want to sort by two variables. These dataset name is 'a1' to 'a1000'. I don't want to merge all datasets. And I want to export a...
set WORK._TABLE1_ WORK._TABLE2_ ; by ID; keep ID NAME SEX AGE DATE HEIGHT WEIGHT ACTLEVEL FEE; run; ***Delete temporary data sets in WORK library***; proc datasets nolist; delete _TABLE1_ _TABLE2_ ; run; 10.3 数据变换 /*首先从文件h:\SAS数据分析系统教程\Data里把数据集Lm3复制...
The SAS side is handled by a number of macros in the macro core library. The following snippet shows the process of SAS tables arriving / leaving: /* convert frontend input tables from into SASWORK datasets */ %webout(FETCH) /* some sas code */ data a b c; set from js; run; %...
Run SAS Procedure on Multiple Datasets Building SAS Macro Library Dropping Variables Ending with a Specific String Importing multiple excel files in a single dataset Importing multiple excel sheets in a single dataset Imputing Missing Data Identify and Remove Outliers with SAS ...
Providing friendly user interfaces for your existing SAS processes, where you have a library of SAS programs that you want non-programmers to be able to use. Connecting your SAS processes to non-SAS resources. You can use an add-in as a link to other information sources, such as web servi...
When an observation is the first in a BY group, SAS sets the value of the FIRST.variable to 1. This happens when the value of the variable changes from the previous observation. For all other observations in the BY group, the value of FIRST.variable is 0. When an observation is the ...