name of day

[Ronein]

Hello

I want to create another column with name of date (character type).

What is wrong with me code please?

Why  nameDay=put(date1,dowName.)   is not working and I get null values?

Also I want to ask how can i do  it in one step (without creating another data set RawTbl2)

Data RawTbl;
informat date1 date9.;
format date1 date9.;
input ID  date1  NameDay;
cards;
1 '15Jan2019'd 10
2 '17Jan2019'd 20
3 '19Jan2019'd 30
4 '21Jan2019'd 40
5 '23Jan2019'd 50
6 '18Jan2019'd 60
7 '17Jan2019'd 70
8 '08Jan2019'd 80
9 '04Jan2019'd 90
;
Run;

data RawTbl2 ;
set RawTbl;
nameDay=put(date1,dowName.) ;
run;

[Kurt_Bremser]

nameday is defined numeric in the first data step; trying to assign it a character value will result in missing values and the corresponding NOTEs in the log.

Maxim 2: Read the Log:

54         data RawTbl2 ;
55         set RawTbl;
56         nameDay=put(date1,dowName.) ;
57         run;
NOTE: Character values have been converted to numeric values at the places given by: (Line):(Column).
      56:9   
NOTE: Invalid numeric data, '  Tuesday' , at Zeile 56 Spalte 9.
date1=15JAN2019 ID=1 NameDay=. _ERROR_=1 _N_=1

[PeterClemmensen · Accepted solution]

You get missing values because you define NameDay as a numeric variable in your first data set. Then in your second, you try to create a character variable with the same name. 

As for your second question, the answer is yes

Data RawTbl;
informat date1 date9.;
format date1 date9.;
input ID date1;
NameDay = put(date1,dowName. -l) ;
cards;
1 '15Jan2019'd
2 '17Jan2019'd
3 '19Jan2019'd
4 '21Jan2019'd
5 '23Jan2019'd
6 '18Jan2019'd
7 '17Jan2019'd
8 '08Jan2019'd
9 '04Jan2019'd
;
Run;