Hi,
I am looking for a way to convert letters to their alphabetic rank. I know that the RANK function can convert the letter to its ASCII ranking but I am looking for a way to do the reverse function of that.
I have a dataset that looks like this (every number is in a separate variable):
var1 | var2 | var3 | var4 |
1 | 2 | 3 | 4 |
26 | 25 | 24 | 23 |
...
Here is what I want:
var1 | var2 | var3 | var4 |
a | b | c | d |
z | y | x | w |
...
Can anyone help me with that?
Thank you!
Use the byte() function.
data _null_;
A= 1; B=byte(96+A); putlog B=;
A=26; B=byte(96+A); putlog B=;
run;
B=a
B=z
You can also use a format.
proc format;
value a2z 1="a" 2="b" 3="c" 4="d" 5="e"
6="f" 7="g" 8="h" 9="i" 10="j"
11="k" 12="l" 13="m" 14="n" 15="o"
16="p" 17="q" 18="r" 19="s" 20="t"
21="u" 22="v" 23="w" 24="x" 25="y" 26="z";
run;
data have;
format i a2z.;
do i=1 to 26;
output;
end;
run;
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