頻率未累加（SAS PROC SQL）

Question

我正在嘗試僅查找唯一ID號的頻率。 我嘗試了PROC FREQ，但是無論如何選擇SELECT DISTINCT的SAS都無法搞清楚。 我運行了以下代碼，並得到了不會累加的數字。

代碼： PROC SQL; SELECT COUNT (DISTINCT MOTPID) FROM WORK.'0__1_MOTP_COMMENTS_0000'n; PROC SQL; SELECT COUNT (DISTINCT MOTPID) FROM WORK.'0__1_MOTP_COMMENTS_0000'n;

結果：20599

碼：

PROC SQL;
SELECT COUNT (DISTINCT MOTPID) FROM WORK.'0__1_MOTP_COMMENTS_0000'n
WHERE MOTPComponentDescription = '1a (obs): Demonstrating knowledge of content and pedagogy';

PROC SQL;
SELECT COUNT (DISTINCT MOTPID) FROM WORK.'0__1_MOTP_COMMENTS_0000'n
WHERE MOTPComponentDescription = '1a (p&p): Demonstrating knowledge of content and pedagogy';

PROC SQL;
SELECT COUNT (DISTINCT MOTPID) FROM WORK.'0__1_MOTP_COMMENTS_0000'n
WHERE MOTPComponentDescription = '1e (obs): Designing coherent instruction';

PROC SQL;
SELECT COUNT (DISTINCT MOTPID) FROM WORK.'0__1_MOTP_COMMENTS_0000'n
WHERE MOTPComponentDescription = '1e (p&p): Designing coherent instruction';

PROC SQL;
SELECT COUNT (DISTINCT MOTPID) FROM WORK.'0__1_MOTP_COMMENTS_0000'n
WHERE MOTPComponentDescription = '2a: Creating an environment of respect and rapport';

PROC SQL;
SELECT COUNT (DISTINCT MOTPID) FROM WORK.'0__1_MOTP_COMMENTS_0000'n
WHERE MOTPComponentDescription = '2d: Managing student behavior';

PROC SQL;
SELECT COUNT (DISTINCT MOTPID) FROM WORK.'0__1_MOTP_COMMENTS_0000'n
WHERE MOTPComponentDescription = '3b: Using questioning and discussion techniques';

PROC SQL;
SELECT COUNT (DISTINCT MOTPID) FROM WORK.'0__1_MOTP_COMMENTS_0000'n
WHERE MOTPComponentDescription = '3c: Engaging students in learning';

PROC SQL;
SELECT COUNT (DISTINCT MOTPID) FROM WORK.'0__1_MOTP_COMMENTS_0000'n
WHERE MOTPComponentDescription = '3d: Using assessment in instruction';

PROC SQL;
SELECT COUNT (DISTINCT MOTPID) FROM WORK.'0__1_MOTP_COMMENTS_0000'n
WHERE MOTPComponentDescription = '4e (obs): Growing and developing     professionally';

PROC SQL;
SELECT COUNT (DISTINCT MOTPID) FROM WORK.'0__1_MOTP_COMMENTS_0000'n
WHERE MOTPComponentDescription = '4e (p&p): Growing and developing professionally';

在此處查看數據集的摘要： https : //docs.google.com/spreadsheets/d/1WDcsezb4xiT67J9t3Nlyi_QEofs0dhyZ23yC32ccbqg/edit?usp=sharing

結果：1a（肥胖）：展示內容和教學知識：700

1a（p＆p）：展示內容知識和教學法：606

1e（obs）：設計連貫指令：15622

1e（p＆p）：設計連貫指令：1135

2a：營造尊重和融洽的環境：2466

2d：管理學生行為：1005

3b：使用提問和討論技術：808

3c：讓學生參與學習：2516

3d：在指令中使用評估：3058

4e（obs）：專業成長與發展：5245

4e（p＆p）：專業發展與發展：588

總和= 33746

33746！= 20599

尋找關於出問題的任何想法，或者是否有更好的方法來獲得我想要的結果（MOTPCopmponentDescription對唯一MOTPID的計數。在此先感謝！

Answer 1

為了討論StackOverflow上的SAS問題，SASHELP庫中的示例數據非常方便。 讓我們使用CARS數據集。 ;

標題“您認為有問題的沒問題”；

title2“計算所有品牌”；

proc sql;
    select count (distinct Make) as distinct_makes from sashelp.cars;
quit;

• 給出38 ;

title2“計算生產具有一定數量氣缸的汽車的品牌”；

proc sql;
    select 'n.a.' as Cylinders, count (distinct Make) as distinct_makes from sashelp.cars where Cylinders = . union
    select ' 3  ' as Cylinders, count (distinct Make) as distinct_makes from sashelp.cars where Cylinders = 3 union
    select ' 4  ' as Cylinders, count (distinct Make) as distinct_makes from sashelp.cars where Cylinders = 4 union
    select ' 5  ' as Cylinders, count (distinct Make) as distinct_makes from sashelp.cars where Cylinders = 5 union
    select ' 6  ' as Cylinders, count (distinct Make) as distinct_makes from sashelp.cars where Cylinders = 6 union
    select ' 8  ' as Cylinders, count (distinct Make) as distinct_makes from sashelp.cars where Cylinders = 8 union
    select '10  ' as Cylinders, count (distinct Make) as distinct_makes from sashelp.cars where Cylinders = 10 union
    select '12  ' as Cylinders, count (distinct Make) as distinct_makes from sashelp.cars where Cylinders = 12;
quit;

• 給定1個生產3個氣缸，26個生產4個氣缸，依此類推，“累加”到80多個 ；

title2“您可以手動驗證這些清單中的結果”；

proc sql;
    select Cylinders, Make, Model from sashelp.cars order by Cylinders, Make;
    select Make, Cylinders, Model from sashelp.cars order by Make, Cylinders;
quit;

標題“您所說的解決方案正在產生不可預測的結果”；

title2“如果以一種方式對輸入進行排序，則會產生此結果”；

proc sort data=sashelp.cars out=cars_short2long;
    by length;
run;
proc sort data=cars_short2long nodupkey out=cars_short2long_clean dupout=dups;
    by Make;
run;
proc freq data=cars_short2long_clean;
    table Cylinders;
run;

• 表明沒有人會制造10缸汽車 ;

title2“如果以其他方式對輸入進行排序，則將產生此結果”；

proc sort data=sashelp.cars out=cars_long2short;
    by descending length;
run;
proc sort data=cars_long2short nodupkey out=cars_long2short_clean dupout=dups;
    by Make;
run;
proc freq data=cars_long2short_clean;
    table Cylinders;
run;

• 表明沒有人會制造3缸汽車 ;

Answer 2

這是我制定的解決方案，得到了我一直在尋找的確切結果：

data comment_analysis;
set WORK.'0__1_MOTP_COMMENTS_0001'n;
run;

proc sort data=comment_analysis nodupkey out=comment_analysis_clean dupout=dups;
by motpid;
run;

proc freq data=comment_analysis_clean;
table MOTPComponentDescription;
run;

這是我在尋找的輸出：MOTPComponentDescription Frequency Percent

1a（肥胖）：展示內容和教學法知識520 2.52％

1a（p＆p）：展示內容和教學法知識400 1.94％

1e（obs）：設計連貫指令11423 55.45％

1e（p＆p）：設計連貫指令526 2.55％

2a：營造尊重和融洽的環境1629 7.91％

2d：管理學生行為556 2.70％

3b：使用提問和討論技巧563 2.73％

3c：吸引學生學習1593 7.73％

3d：在指令1818中使用評估8.83％

4e（obs）：專業發展1235 6％

4e（p＆p）：專業成長與發展336 1.64％