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RE: st: FW: Urgent: Stored Data after the calculation
From
"Martin Weiss" <[email protected]>
To
<[email protected]>
Subject
RE: st: FW: Urgent: Stored Data after the calculation
Date
Sun, 28 Mar 2010 22:03:44 +0200
<>
Sure, you may like Kit`s http://www.stata-press.com/books/isp.html to fill
you in on all the secrets of Stata programming :-)
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of keeler james
Sent: Sonntag, 28. März 2010 22:00
To: [email protected]
Subject: RE: st: FW: Urgent: Stored Data after the calculation
Hi Martin,
Thanks for your time and effort. I am probably a bit slow in this as I only
start programming Stata or mainly programming for 3 months. Many thanks for
all the pointers and reference. have a nice evening!
Cal
----------------------------------------
> From: [email protected]
> To: [email protected]
> Subject: RE: st: FW: Urgent: Stored Data after the calculation
> Date: Sun, 28 Mar 2010 21:44:45 +0200
>
>
> <>
>
> Several things are getting mixed up here, and I hope I am not the source
of
> the confusion. The -local- line stands on its own, unencumbered by what
you
> typed before. I thought you only wanted to see the value of A09 for which
> the -if- expression was true, hence my answer.
>
> Where does the "=r(N)" part come from? It sounds suspiciously like a line
> being taken out of context. This very context might have been a prior line
> containing the -count- command, possibly augmented by an -if- expression
of
> the kind you had in mind. This command would leave an r-return value in
its
> wake, which you could then put into a -local-...
>
>
> HTH
> Martin
>
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of keeler james
> Sent: Sonntag, 28. März 2010 21:38
> To: [email protected]
> Subject: RE: st: FW: Urgent: Stored Data after the calculation
>
> Ta, Martin.
>
> After the command:
>
> list if Cohort=="Group 2" & A09!=.
>
> I don't think I can use the command:
>
> local second=A09[2]
>
> anymore, I try to use the following
>
> local second=r(N)
>
> but it doesn't seem to work. Ummm...
>
> Cal
>
> ----------------------------------------
>> From: [email protected]
>> To: [email protected]
>> Subject: RE: st: FW: Urgent: Stored Data after the calculation
>> Date: Sun, 28 Mar 2010 20:39:30 +0200
>>
>>
>> <>
>>
>>
>> Maybe you wanted:
>>
>> *******
>> list if Cohort=="Group 2" & A09!=.
>> *******
>>
>> The string "and" was bound to cause an error message...
>>
>> HTH
>> Martin
>>
>>
>> -----Original Message-----
>> From: [email protected]
>> [mailto:[email protected]] On Behalf Of keeler james
>> Sent: Sonntag, 28. März 2010 20:34
>> To: [email protected]
>> Subject: RE: st: FW: Urgent: Stored Data after the calculation
>>
>> BTW, one more question.
>>
>> What if the groups are ever changing, e.g. sometimes groups 1 and 4 are
>> missing, and it will end up like the following:
>>
>> Cohort Tot08 Tot09 A08 A09
>>
>> Group 2 10 3 0
>> ?
>> Group 3 3 4 2 ?
>> Group 5 3
>> 8 0 ?
>> Group 6 0 31 0 ?
>> Group 7 266 245 181 ?
>>
>> if we use the same display command -di in r "Second value of A09: "
> A09[2]-,
>> it will show the value of Group 3 instead of Group 2.
>>
>> I try in vain to use the following command
>>
>> di in r if Cohort=="Group 2" and A09!=.
>>
>> to lock the output to Group 2 but there was an error message. Any help
> will
>> be great!
>>
>> Cal
>>
>> ----------------------------------------
>>> From: [email protected]
>>> To: [email protected]
>>> Subject: RE: st: FW: Urgent: Stored Data after the calculation
>>> Date: Sun, 28 Mar 2010 17:15:45 +0100
>>>
>>> Brilliant! Many thanks, Martin - have a good weekend!
>>>
>>> Cal
>>>
>>>> From: [email protected]
>>>> To: [email protected]
>>>> CC: [email protected]
>>>> Subject: st: FW: Urgent: Stored Data after the calculation
>>>> Date: Sun, 28 Mar 2010 16:02:07 +0200
>>>>
>>>>
>>>> <>
>>>>
>>>>
>>>> Try this, and switch your mail program to text only... All of this is
>>>> discussed in [U], sect. 13.7...
>>>>
>>>> *******
>>>> clear*
>>>>
>>>> input str7 Cohort int(Tot08 Tot09 A08)
>>>> "Group 1" 48 66 17
>>>> "Group 2" 10 3 0
>>>> "Group 3" 3 4 2
>>>> "Group 4" 1 0 0
>>>> "Group 5" 3 8 0
>>>> "Group 6" 0 31 0
>>>> "Group 7" 266 245 181
>>>> end
>>>>
>>>> gen A09=round((A08/Tot08)*Tot09)
>>>>
>>>> list, noo
>>>>
>>>> di in r "First value of A09: " A09[1]
>>>> di in r "Second value of A09: " A09[2]
>>>> di in r "Double the first value of A09: " 2*A09[1]
>>>>
>>>> *store second value in a -local-
>>>> local second=A09[2]
>>>> di in r `second'
>>>> *******
>>>>
>>>>
>>>> HTH
>>>> Martin
>>>>
>>>> From: keeler james [mailto:[email protected]]
>>>> Sent: Sonntag, 28. März 2010 15:10
>>>> To: [email protected]; [email protected]
>>>> Subject: FW: Urgent: Stored Data after the calculation
>>>>
>>>> Hi Martin,
>>>>
>>>> Thanks for the prompt response.
>>>>
>>>> The message attached is my original request, which got bounced back:
>>>>
>>>> For Group1, the calculated value for A09 is 23.4; for Group2, the
>> calculated
>>>> value is 0 and so on for the rest of the groups. But how can I reuse
> 23.4
>>>> (Group 1, A09) in one specific (further) calculation and 0 (Group2,
A09)
>> in
>>>> a separate (further) calculation?
>>>>
>>>> I think it should be quite easy, but I just don't know how to do that.
>>>>
>>>> Calchas
>>>> ________________________________________
>>>> From: [email protected]
>>>> To: [email protected]
>>>> Subject: FW: Urgent: Stored Data after the calculation
>>>> Date: Sat, 27 Mar 2010 00:06:41 +0000
>>>>
>>>> Dear Statalist,
>>>>
>>>> I have the following table with column "A09" needed to be calculated.
>>>>
>>>> Cohort Tot08 Tot09 A08 A09
>>>>
>>>> Group 1 48 66 17 ?
>>>> Group 2 10 3 0 ?
>>>> Group 3 3 4 2 ?
>>>> Group 4 1 0 0 ?
>>>> Group 5 3 8 0 ?
>>>> Group 6 0 31 0 ?
>>>> Group 7 266 245 181 ?
>>>>
>>>> I use the command:
>>>>
>>>> gen A09=round((A08/Tot08)*Tot09)
>>>>
>>>> This will work well for the missing column "A09", but how can I reuse
> the
>>>> calculated numbers to do further calculations?
>>>>
>>>> I know it is something relating to the command of stored data, i.e.:
>>>>
>>>> local missing=r(N)
>>>>
>>>> but this is only for a scalar value, what about saving and reusing the
>>>> entire column? Really stuck at the moment and any help will be
>> appreciated.
>>>>
>>>> Ta,
>>>> Calchas
>>>>
>>>>
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