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Re: st: identifying how many digits string var has
From
Nick Cox <[email protected]>
To
[email protected]
Subject
Re: st: identifying how many digits string var has
Date
Sun, 3 Apr 2011 08:28:46 +0100
Joerg Luedicke gave you a solution with -length()-.
-strlen()- and -length()- are just different names for the same function.
What you did wrong was that
... if strlen(`x')
is to be thought of as a contraction for
... if strlen(`x') > 0
which is true for all your tests. So, the last test you made
overwrites the others.
As Joerg said, just using -length()- or -strlen()- to count the
characters is what you want.
Nick
On Sun, Apr 3, 2011 at 1:38 AM, Daniel Marcelino <[email protected]> wrote:
> Is there a way to identify how many digits a string var have? In the
> following example I have 18 , 14, and "missing" digits (counting "/".
> "-" and "."). So, I want to identify in var2 how many digits per line
> var1 has.
>
> gen str20 var1 = ""
> input
> "12.205.291/0001-33"
> "12.176.958/0001-17"
> "589.275.222-49"
> "409.011.140-49"
> "12.147.825/0001-12"
> "010.433.392-80"
> "07.752.894/0001-15"
> "."
> end
>
>
> I tried this loop, but it just returned me value "3" for all obs. What is wrong?
>
> foreach x of varlist var1 {
> generate byte var2 = 1 if strlen(`x')
> replace var2 = 2 if strlen(`x')
> replace var2 = 3 if strlen(`x')
> }
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