Hi!
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.
Have:
AB12345678
ABCD201642
20AB3413089000788913
20AB00000247287021
CD12345678
Want:
AB12345678
CD12345678
HI @J_J_J Please try-
data have;
input var $20.;
cards;
AB12345678
ABCD201642
20AB3413089000788913
20AB00000247287021
CD12345678
;
data want;
set have;
where lengthn(var)=10;
if prxmatch('/^[a-z]{2}\d{8}/i', var);
run;
HI @J_J_J Please try-
data have;
input var $20.;
cards;
AB12345678
ABCD201642
20AB3413089000788913
20AB00000247287021
CD12345678
;
data want;
set have;
where lengthn(var)=10;
if prxmatch('/^[a-z]{2}\d{8}/i', var);
run;
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;
Results:
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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