Add leading zeros to numeric variable

[BrahmanandaRao]

how to add leading zeros

DATA DS4; INFILE DATALINES; INPUT NUMBER; FORMAT NUMBER Z10.; DATALINES; 1 11 111 1111 11111 111111 1111111 11111111 111111111 1111111111 ; RUN; 

[Kurt_Bremser · Accepted solution]

You already achieved that:

data ds4;
infile datalines;
input number;
format number Z10.;
datalines;
1
11
111
1111
11111
111111
1111111
11111111
111111111
1111111111
;
run;

proc print data=ds4 noobs;
run; 

Result:

    number

0000000001
0000000011
0000000111
0000001111
0000011111
0000111111
0001111111
0011111111
0111111111
1111111111

A number does not have leading zeroes by definition, but it can be displayed with leading zeroes, and your format does that.

If you need to store leading zeroes (eg if your number is not a number for calculation, but identification), you have to store the value in a character variable.

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@BrahmanandaRao wrote:

how to add leading zeros

DATA DS4; INFILE DATALINES; INPUT NUMBER; FORMAT NUMBER Z10.; DATALINES; 1 11 111 1111 11111 111111 1111111 11111111 111111111 1111111111 ; RUN; 

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