proc datasets lib=chapt2;/*逻辑库所在位置*/modify income;/*更新数据集名称*/index create dtefit=(flightid fltdate)/nomiss unique;/*dtefit代表索引名称,flightid fltdate代表两个变量名称,复合索引*/quit;data profit;setchapt2.expenses;setchapt2.income key=dteflt;/*按索引查找相同的内容,然后组成同...
Below is a collection of PROC APPEND SAS®papers. PROC APPEND is very useful when you need to append two or more datasets of the same structure. See alsoPROC SQL. See alternativePROC DATASETSandSETstatement. PROC DATASETS; DELETE A; /* Best Practice to first delete dataset A */ ...
See the docs re Combining Datasets. http://support.sas.com/documentation/cdl/en/lrcon/69852/HTML/default/viewer.htm#n1tgk0uanvisvon1r26l... View solution in original post 0 Likes 1 REPLY Reeza Super User Re: SAS SQL Code for Appending two tables Posted 11-26-2016 04:25 AM ...
10.CPORT将一个SAS库,特别是SAS数据集或SAS目录转换成一个顺序文件格式,此格式能被传送到第6版系统上去。11.DATASETS对一个SAS库进行列表、拷贝、更名、子和删除SAS文件(数据集和目录)。12. DBF使SAS数据集与dBASEⅡ、dBASEⅢ文件互相转换。13. DIF使SAS数据集与数据交换格式(DIF)文件互相转换。14. DOWNLOAD实...
proc iml;x= {'date' price};t= {1111 2,2341 2,2132 3,1234 5,12345 6,3456 6,6753 4,2345 7,2134 9};print t;t[1,1]=.;t[2,1]=.;t[5,1]=.;t[9,1]=.;create a from t[colname=x];/ append from t;show datasets;show contents;close a;run;quit;data a;set a;format ...
如: MERGE ONE(IN=A) TWO; 即当前观测取自ONE时, 则A=1,这一信息可用于DATA步中间的程序语句(如: IF A=1 THEN …), 但此变量不进入正被创建的SAS数据集中; ④KEEP=变量名列表 等号后面的所有变量将保留在数据集中; ⑤LABEL='单引号内写标签内容, 字符数应≤40'...
[colname=x];/*从矩阵构造数据集a,为变量命名date和price */ append from t; /*填充矩阵已有的观测值 */ show datasets; show contents;/*显示一些信息,可省略*/ close a; run; quit;/*退出iml环境 */ data a; set a; format date yymmdd8.2;/*将数值型的改变为日期型的输出变量*/ run; data ...
In my case it looks like the total write dataset creation time is only mildly impacted by getting the column char lengths. There are datasets where it takes more 5-6 sec to get the char lengths, but for me it is mostly < 1 sec. The new code does seem more efficient. I attached a...
5. Elucidate the APPEND procedure. The term ‘append’ means adding at the end. In SAS, we can say that the APPEND procedure is a procedure adding one SAS data set to another SAS data set. 6. Describe PROC UNIVARIATE. PROC UNIVARIATE is used for the elementary numeric analysis, and it...
There are two ways to append data in SAS. The first is directly in the data step with the SET statements. The second way is through the use of the PROC APPEND statement. Make sure that the variables are the same (same names and same types) in all the datasets. ex1. data your_new...