# Re: st: RE: eliminating the nth digit of a numeric variable

 From Bill Rising To "Stata Listserve" Subject Re: st: RE: eliminating the nth digit of a numeric variable Date Thu, 27 Feb 2003 10:56:35 -0500

```On 2/27/03 8:11, Nick Cox wrote

>Sanz De Galdeano, Anna
>>
>> I have a numeric variable which takes, for instance, values like:
>>
>> 1017
>> 273076
>> 518097
>> 3046
>>
>> As you see, all these numbers have one thing in common: the
>> third difit
>> starting from the right is always 0. That 0 should not be
>> there and I want
>> to get rid of it so that my numeric variable looks like:
[the good solution using mod and int...]

Nick also gave a solution for replacing all 0's:

>
>	real(subinstr(string(myvar),"0","",1))
>

If it were known that the last zero were the evil zero, this could be
done via:

real(reverse(subinstr(reverse(string(myvar,%30.0g)),"0","",1)))

(at least if the number is smaller than Stata's longs)

Bill
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```