[R] Importing data using Foreign

[Eric Berger]

c(1:3)[c(1,NA,3)]
[1] 1 NA 3


On Wed, Aug 26, 2020 at 6:06 PM Elham Daadmehr <e.daadmehr using gmail.com> wrote:

> Thanks guys. but I'm a bit confused. the input is the first column (z[,1]
> and z1[,1]).
> How is it possible that a subset of a non-NA vector, contains NA?
>
> On Wed, Aug 26, 2020 at 4:58 PM Eric Berger <ericjberger using gmail.com> wrote:
>
>> Good point! :-)
>>
>>
>> On Wed, Aug 26, 2020 at 5:55 PM peter dalgaard <pdalgd using gmail.com> wrote:
>>
>>> Offhand, I suspect that the NAs are in the 8th column.
>>>
>>> > On 26 Aug 2020, at 10:57 , Elham Daadmehr <e.daadmehr using gmail.com>
>>> wrote:
>>> >
>>> > Hi all,
>>> >
>>> > I have a simple problem. I get stuck in using the imported spss data
>>> (.sav)
>>> > using "read.spss".
>>> > I imported data (z) without any problem. After importing, the first
>>> column
>>> > doesn't contain any "NA". but when I choose a subset of it (like:
>>> > z[z[,8]=="11"|z[,8]=="12"|z[,8]=="14",]), lots of NA appears (even in
>>> the
>>> > first column).
>>> >
>>> > The (.sav) file is the output of Compustat (WRDS).
>>> >
>>> > It is terrible, I can't find the mistake.
>>> >
>>> > Thank you in advance for your help,
>>> > Elham
>>> >
>>> >       [[alternative HTML version deleted]]
>>> >
>>> > ______________________________________________
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>>> > PLEASE do read the posting guide
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>>>
>>> --
>>> Peter Dalgaard, Professor,
>>> Center for Statistics, Copenhagen Business School
>>> Solbjerg Plads 3, 2000 Frederiksberg, Denmark
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>>> Email: pd.mes using cbs.dk  Priv: PDalgd using gmail.com
>>>
>>> ______________________________________________
>>> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide
>>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>>
>>

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