proc sql; select id, ifc(max(treat1)=1,'Yes','No') as overall_effect length=3 'Any effect after treatment 1', sum(cost) as sum_cost format=dollar8.2 'Total cost', ifn(calculated sum_cost ge 1000,calculated sum_cost*0.85,calculated sum_cost*1) as discounted_cost format=dollar8.2 ...
PROC SQL; CREATE TABLE output_table AS SELECT condition, ID, SUM(value) AS sum_value FROM input_table GROUP BY condition, ID; QUIT; 上述代码中,我们使用PROC SQL语句创建了一个名为output_table的新数据集。通过SELECT语句,我们选择了条件变量、ID变量和数值变量的累加和,并使用SUM函数进行求和操作。GRO...
{i}; end; if last then output; run; /*变量更多时 就用宏*/ %macro selectsums(maxindex=); %do n=1 %to &maxindex; sum(a&n) as sum&n %if &n NE &maxindex %then , ; %END; %mend selectsums; PROC SQL; create table sumssss as select %selectsums(maxindex=4) from w ; ...
procsql; selectcount(var =2)asvarcnt fromtmp; quit; 这位童鞋可能有点不太明白sum函数和count函数在遇到逻辑比较运算的时候的区别。 首先我说一下count函数吧。 Count函数一般在sql中有两种写法,一种是count(*),这个表示对数据集行数的统计,如果加了group by,那就是分组的行数统计;一种是count(variable),...
code numeric literal. (i.e. may need to compare data when formnatted as RB4.); */ ...
proc sql;/*获得总记录数、总坏客户数、总好客户数*/ select count(*),SUM(&Y),count(*)-SUM(&Y) into :record_cnt, :bad_cnt, :good_cnt from &schema..&table_name; quit; /*2---不指定分箱的变量,取所有连续变量*/ %if&column =%str()%then %do...
```sas proc sql; create table user_summary as select user_id, count(*) as purchase_frequency, sum(purchase_amount) as total_purchase_amount from purchases group by user_id; quit; data user_summary; set user_summary; if total_purchase_amount >= 1000 then value_segment = '高价值'; ...
proc sql;select 个人编号, sum(消费) as 个人消费总额 from 数据表 group by 个人编号;quit;如果想把结果保留下来 建个新表 create table a as select 个人编号, sum(消费) as 个人消费总额 from 数据表 group by 个人编号;
A. IF-THEN B. WHERE C. SUBSET D. SELECT 答案:B 二、简答题(每题5分,共30分) 1. 简述SAS中PROC SQL的作用。 答案:PROC SQL在SAS中用于执行SQL语句,可以进行数据查询、更新、插入和删除等操作。 2. 解释SAS中宏变量的用途。 答案:宏变量在SAS中用于存储文本值,可以在程序中重复使用,以提高代码的可读...
if not index(&var.,".") then dec = 0; run; proc sql; select max(dec) into: decmax from _dec ; quit; %put 最大小数位数:&decmax.; 分层统计宏变量的处理 分层变量对应目标表格前几列的那些指标,如avisitn,但是输入时是|分割的,无法直接用于排序或者统计步骤中,需要进行处理。