循环有条件地导出表SAS(大量变量)

Question

因此,我试图根据特定的变量分组来分解大型数据集(70,000个具有1,790个变量的数据集).Excel或CSV是导出的理想格式,但对变量号(260或其他)有限制.有什么想法我怎么能在SAS(或其他R/SQL)这样做？

我知道宏工作,我以前用过它.错误消息读取已达到变量的限制.

Answer 1

创建Excel文件肯定有限制,但不是CSV文件.以下是使用虚拟SAS数据集的示例:

data a;
  array x(*) x1-x1790;
  do j=1 to 5;
     do i=1 to dim(x);
        x(i) = ranuni(0);
        end;
     output;
     end;
run;

proc export data=a
   outfile="c:\temp\tempfile.csv"
   dbms=CSV
   replace;
run;

以下是相关日志:

NOTE: The file 'c:\temp\tempfile.csv' is:
      Filename=c:\temp\tempfile.csv,
      RECFM=V,LRECL=32767,File Size (bytes)=0,
      Last Modified=23Jan2013:15:27:13,
      Create Time=23Jan2013:15:27:13

NOTE: 6 records were written to the file 'c:\temp\tempfile.csv'.
      The minimum record length was 9636.
      The maximum record length was 23087.
NOTE: There were 5 observations read from the data set WORK.A.
NOTE: DATA statement used (Total process time):
      real time           0.26 seconds
      cpu time            0.09 seconds


5 records created in c:\temp\tempfile.csv from A.


NOTE: "c:\temp\tempfile.csv" file was successfully created.
NOTE: PROCEDURE EXPORT used (Total process time):
      real time           2.04 seconds
      cpu time            0.26 seconds

请注意,第一行包含列标题.

更新:如果您有最新版本的SAS(9.3 TS1M1或更高版本),则可以创建Office 2010 Excel电子表格,其最多包含1,048,576行,16,384列.在那种情况下,你会使用DBMS=XLSX.