I'm trying to find only those variables, where first 2 symbols are letters and next 8 are numbers and length of variable is 10 digits. I used code: (anyalpha(substr(CODE, 1, 2), 2) and anydigit(substr(CODE, 3, 10), 😎 and length(CODE)=10). But it doesn't work. Please help to do it.
Let's try using the ANYDIGIT and ANYALPHA functions to get the information needed for your test.
First let's make some data.
data have ; input code $30. ; cards; AB12345678 ABCD201642 20AB3413089000788913 20AB00000247287021 CD12345678 XX1234 678 ;
Now let's make some tests and then check that they follow all of the rules. Let's use NOTDIGIT to make sure the last 8 characters are all digits.
data want; set have ; len = lengthn(code); first_digit= anydigit(code); last_digit= anydigit(code,-len); last_nondigit=notdigit(code,-len); first_alpha=anyalpha(code); last_alpha=anyalpha(code,-len); want=len=10 and first_digit=3 and last_digit=10 and last_nondigit=2 and first_alpha=1 and last_alpha=2; run;
first_ last_ last_ first_ last_ Obs code len digit digit nondigit alpha alpha want 1 AB12345678 10 3 10 2 1 2 1 2 ABCD201642 10 5 10 4 1 4 0 3 20AB3413089000788913 20 1 20 4 3 4 0 4 20AB00000247287021 18 1 18 4 3 4 0 5 CD12345678 10 3 10 2 1 2 1 6 XX1234 678 10 3 10 7 1 2 0
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