如何从作为宏变量的 table 中调用变量？

Question

如果我的标题读起来让人困惑，我深表歉意，但我不知道如何简单地描述它。

我正在尝试从作为宏变量的 table 调用一个变量（table 是一个宏变量）

我的宏看起来像这样：

%macro genre_analysis(table1=,table2=,genre=,genre1=);
proc sql;
create table &table1 as
select id, original_title, genres, revenue
from genres_revenue
where genres_revenue.genres like &genre
and revenue is not null
group by id
having revenue ne 0
;
quit;

proc sql;
create table &table2 as
select avg(revenue) as Average format=dollar16.2, median(revenue) as Median format=dollar16.2, std(revenue) as std format=dollar16.2
from &table1;
quit;

一切正常，直到我到达宏的这一部分：

proc sql;
title "Revenue Stats by Genre";
    insert into genre_summary
    set Genre=&genre1,
    average=&table2.average,
    median=&table2.median,
    std=&table2.std;
%mend genre_analysis;

我正在尝试将一行插入我在宏之外创建的 table。但是使用“&table2.average”和其他两个以“&table2”开头的变量不会调用我在宏中创建的 table 中的变量。

例如：

%genre_analysis(table1=horror_revenue,table2=horror_revenue_stats,genre='%Horror%',genre1='Horror')

Returns:

NOTE: Table WORK.HORROR_REVENUE created, with 725 rows and 4 columns.

NOTE: PROCEDURE SQL used (Total process time):
      real time           0.04 seconds
      cpu time            0.03 seconds


NOTE: Table WORK.HORROR_REVENUE_STATS created, with 1 rows and 3 columns.

NOTE: PROCEDURE SQL used (Total process time):
      real time           0.01 seconds
      cpu time            0.01 seconds


ERROR: Character expression requires a character format.
ERROR: Character expression requires a character format.
ERROR: Character expression requires a character format.
ERROR: It is invalid to assign a character expression to a numeric value using the SET clause.
ERROR: It is invalid to assign a character expression to a numeric value using the SET clause.
ERROR: It is invalid to assign a character expression to a numeric value using the SET clause.
**ERROR: The following columns were not found in the contributing tables:
       horror_revenue_statsaverage, horror_revenue_statsmedian, horror_revenue_statsstd.**

我一直在关注我加星标的错误，因为我认为这就是问题所在。

我尝试使用 "from" 子句，但这似乎也不起作用。

如有任何帮助或建议，我们将不胜感激！

Answer 1

您不需要在中间 table 中存储选择的摘要统计信息以供以后在 INSERT 语句中使用。相反，您可以将选择直接插入 table.

例如：

* table to receive summary computations;
proc sql;
  create table stats
  (age num
  , average num
  , median  num
  , std     num
  , N num
  );

* insert summary computations directly;    
proc sql;
  insert into stats
  select 
     age
   , mean (height) 
   , median (height)
   , std (height)
   , count (height) 
   from sashelp.class
   group by age
  ;

* insert more summary computations directly;

对于new-results在一个table中的情况需要添加到collecting-table 你可以做到

proc append base=<collecting-table> data=<new_results>;

或

insert into <collecting-table> select * from <new-results>;

最后，对于在宏变量本身中有一些新结果值的情况，您可以使用 VALUE 子句插入这些值。您有文字引用任何将映射到字符列的宏变量分辨率。

insert into <collecting-table> values ("&genre", &genre.mean, ...);

如何从作为宏变量的 table 中调用变量？

How can I call a variable from a table that is a macro variable?

sas

sas-macro