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Re: st: Invalid Syntax
From
Nick Cox <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: st: Invalid Syntax
Date
Mon, 11 Nov 2013 16:34:23 +0000
SJ-8-4 dm89_1 . . . . Dropping variables or observations with missing values
(help dropmiss if installed) . . . . . . . . . . . . . . . N. J. Cox
Q4/08 SJ 8(4):594
update in style and content; added a new force option
STB-60 dm89 . . . . . Dropping variables or observations with missing values
(help dropmiss if installed) . . . . . . . . . . . . . . . N. J. Cox
3/01 pp.7--8; STB Reprints Vol 10, pp.44--46
drops variables or observations with all values (optionally
any values) missing
Nick
[email protected]
On 11 November 2013 15:58, Amir Sadeghi Emamgholi
<[email protected]> wrote:
> Thanks Richard and Fernando.
>
> I read the help on - drop - but did not notice that - drop varlist -
> doesn't accept - if - .
> Putting - drop - in an - if - works. Good way to work with commands
> that don't accept - if - Fernando!
> Thanks to both of you, again. - Amirsa
>
> On Mon, Nov 11, 2013 at 10:45 AM, Fernando Rios Avila
> <[email protected]> wrote:
>> If the intention of the loop is to drop "empty" vars, i would use the
>> following command
>> foreach i in E_I3 E_I4 E_I5 E_I6 E_I7 E_I8 E_I9 E_I10 E_I11 {
>> qui summ `i'
>> if r(N) == 0 {
>> drop `i'
>> }
>> }
>>
>> HTH
>> Fernando
>>
>> On Mon, Nov 11, 2013 at 10:36 AM, Amir Sadeghi Emamgholi
>> <[email protected]> wrote:
>>> Hello Statalisters,
>>>
>>> Sorry for this stupid question. I cannot figure out the problem with
>>> my drop command in the following loop. When I run it I get the -
>>> Invalid Syntax - error message.
>>>
>>> The loop:
>>>
>>> foreach i in E_I3 E_I4 E_I5 E_I6 E_I7 E_I8 E_I9 E_I10 E_I11 {
>>> qui summ `i'
>>> drop `i' if r(N) == 0
>>> }
>>>
>>> Thanks!
>>> Amirsa
>>>
>>> P.S. when I use - drop "`i'" if r(N) == 0 - I get the - "E_I3 invalid
>>> name - error message.
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