problem with proc formats

[atulsingh]

I am having a dataset with values yes/no. I want to use proc format to replace yes with 1 and no with 0.  

The dataset is attached for reference.

[LinusH]

So what is your problem?

What have you tried?

[atulsingh]

proc format;
value fmt 'No'= 0 'Yes'= 1;
run;

I am getting the error : 

proc format;

63 value fmt 'No'= 0 'Yes'= 1;

_

22

76

ERROR: The quoted string 'No' is not acceptable to a numeric format or informat.

ERROR 22-322: Syntax error, expecting one of the following: a quoted string, a format name.

ERROR 76-322: Syntax error, statement will be ignored.

[atulsingh]

Please reply. I am stuck

[Astounding · Accepted solution]

To create a format for a character variable, the format name must begin with $:

value $fmt 'No'='0'  'Yes'='1';

Alternatively, you could create an informat using INVALUE instead of VALUE.