Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: Need Help Recoding a variable -Dealing with string expression
From
Nick Cox <[email protected]>
To
[email protected]
Subject
Re: st: Need Help Recoding a variable -Dealing with string expression
Date
Wed, 20 Jun 2012 18:47:56 +0100
Same answer, really. Something like
destring strvar, gen(numvar) force
replace numvar = 3 if strpos(strvar, ">") | strpos(strvar, "<") |
regexm(strvar, "[a-z]+")
You need to find out about string functions. -help functions-.
Nick
On Wed, Jun 20, 2012 at 4:52 PM, Michael Stewart
<[email protected]> wrote:
> Thank you Nick and Daniel .
>
> I am sorry that my post want clear enough.
>
> Once I destring, with a force option, I get some missing values
> corresponding to non numeric vaulues.
>
> I wanted to recode the missing values in the new variable to number 3
> if there is an alphabet(could be anything from a to z) or a symbol (<
> or > ) in the corresponding observation for the original variable
> like "sometimes" "< two" "<3" ">5 " "<0.5" ">four" .
On Wed, Jun 20, 2012 at 10:00 AM, Nick Cox <[email protected]> wrote:
>> The question is too general to answer fully but one pattern is just
>>
>> recode x <whatever> if y == "foo"
>>
>> In addition to exact equality of string values there are many other
>> possibilities involving string functions.
On Wed, Jun 20, 2012 at 2:49 PM, Michael Stewart
>>> I need to recode a variable if another variable has a nonnumeric
>>> string observation(could have any non-numeric expression)
>>>
>>> Eg: recode x(......) if y =TSTATA COMMAND (any non-numeric
>>> string expression)
>>>
>>> Can you please help me with the command to take into consideraiton
>>> "any non-numeric string expression "
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/