[英]SAS code for multiple entries of primary key and corresponding data
I have data like below 我有如下数据
p_id E_id
---- ----
1 1
1 2
1 3
1 4
2 1
3 1
3 2
3 3
4 1
For each primary_id
I have to create a table of the corresponding E_id
. 对于每个primary_id
我必须创建一个对应的E_id
的表。
How do I do it in SAS; 我该如何在SAS中做到这一点?
I am using: 我在用:
proc freq data = abc;
where p_id = 1;
tables p_id * E_id;
run;
How do I generalize the where statement for all the primary keys?? 如何概括所有主键的where语句?
The by
statement is how you get a separate table for each ID. by
语句是如何为每个ID获得单独的表。 It requires data to be sorted by the variable. 它要求数据按变量排序。
proc freq data = abc;
by p_id;
tables p_id * E_id;
run;
Here is a solution allowing you to select p_id
to generate frequency tables. 这是一个允许您选择p_id
生成频率表的解决方案。
data have;
input p_id e_id;
datalines;
1 1
1 2
1 3
1 4
2 1
3 1
3 2
3 3
4 1
;
run;
proc sort data = have;
by p_id;
run;
%let pid_list = (1,2); ** only generate two tables;
data _null_;
set have;
by p_id;
if first.p_id and p_id in &pid_list then do;
call execute('
proc freq data = have(where = (p_id = '||p_id||'));
tables p_id * e_id;
run;
');
end;
run;
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