## month date conversion

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Posts: 122

# month date conversion

Hi,

I imported a Stata dataset to SAS. Everything looks correct except for the month variable. I have a month date variable in Stata dataset. It looks like this way, 1991m1, 1991m2, 1991m3,.... When I imported this variable into SAS, It changes to 372, 373, 374.... I wonder how I can correctly convert this variable into a date variable such as 1JAN1991, 1FEB1991,.....

Thanks

Accepted Solutions
Solution
‎07-18-2013 08:01 PM
Super User
Posts: 23,700

## Re: month date conversion

It looks like its counting months from January 1, 1960.

The example below shows how to convert it to a SAS date called test and then display as month or date (variable=test2).

data have;

input num_months;

cards;

373

374

375

;

run;

data want;

set have;

test=intnx('month', '01Jan1960'd, num_months);

format test date9.;

test2=test;

format test2 yymm7.;

run;

All Replies
Solution
‎07-18-2013 08:01 PM
Super User
Posts: 23,700

## Re: month date conversion

It looks like its counting months from January 1, 1960.

The example below shows how to convert it to a SAS date called test and then display as month or date (variable=test2).

data have;

input num_months;

cards;

373

374

375

;

run;

data want;

set have;

test=intnx('month', '01Jan1960'd, num_months);

format test date9.;

test2=test;

format test2 yymm7.;

run;

Frequent Contributor
Posts: 122

## Re: month date conversion

Perfect! Thanks

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