[R] Loop over folder files

[ruipbarradas at sapo.pt]

Hello,

That means that probably the files are in a different folder/directory.
Use getwd() to see what is your current directory and
setwd("path/to/files") to set the right place where the files can be found.

Rui Barradas
 

Citando Juan Ceccarelli Arias <jfca283 at gmail.com>:

> I just doesn't work...
> Im loading the read,dta13 package already.
> When i try to perform a simple table(sex), i received the "File not  
> found" message.
> However, if i load the data using the file.choose() option inside  
> read.dta13, i can open the stata file.
> I don't know what am i doing wrong...
>   On Tue, Aug 23, 2016 at 5:08 PM, <ruipbarradas at sapo.pt> wrote:
>> _Or maybe a print() statement on the table() in the loop.
>>
>> print(table(...))
>>
>> Rui Barradas
>>  _
>>
>> _Citando David Winsemius <dwinsemius at comcast.net>:_
>>
>>>> _On Aug 23, 2016, at 10:01 AM, Juan Ceccarelli Arias  
>>>> <jfca283 at gmail.com> wrote:
>>>>
>>>> Im running this but the code doesn't seem work.
>>>> It just hangs out but doesn't show any error.
>>>>
>>>> for (i in 1:length(fuente)){
>>>>
>>>> xxx=read_dta(fuente[i])
>>>>
>>>> table(xxx$cise, xxx$sexo)
>>>>
>>>> rm(xxx)
>>>>
>>>> }_
>>>
>>> _I still find the behavior of R's `for`-loop to be rather  
>>> puzzling. In this case you appear to be getting the operation  
>>> done, but because you didn't assign those table values to a  
>>> variable they just disappeared.
>>>
>>> Try this:
>>>
>>> XXX <- list()
>>>
>>> for (i in 1:length(fuente)){
>>>   xxx=read_dta(fuente[i])
>>>   XXX[[i]] <- table(xxx$cise, xxx$sexo)
>>>   rm(xxx)
>>> }
>>> str(XXX)
>>>
>>> Seems to me that if you can do assignment to the parent  
>>> environment (without actually using assign( ..., env=...)  that  
>>> you should also be able to see the results of evaluation occurring  
>>> inside the for loop, but for-loops return NULL. So you see nothing.
>>>
>>> David.
>>>   _
>>>> _On Tue, Aug 23, 2016 at 6:31 AM, <ruipbarradas at sapo.pt> wrote:_
>>>>
>>>>> _Hello,
>>>>>
>>>>> The op could also use package sos to find that and other packages to read
>>>>> stata files.
>>>>>
>>>>> install.packages("sos")
>>>>>
>>>>> library(sos)
>>>>> findFn("stata")
>>>>> found 374 matches;  retrieving 19 pages
>>>>> 2 3 4 5 6 7 8 9 10
>>>>> 11 12 13 14 15 16 17 18 19
>>>>> Downloaded 258 links in 121 packages
>>>>>
>>>>> The first package is readstata13 but there are others.
>>>>>
>>>>> Hope this helps,
>>>>>
>>>>> Rui Barradas
>>>>>
>>>>> Citando Michael Dewey <lists at dewey.myzen.co.uk>:
>>>>>
>>>>> Dear Juan
>>>>>
>>>>> If this is a Stata 13 file the package readstata13 available  
>>>>> from CRAN may
>>>>> be of assistance.
>>>>>
>>>>> On 22/08/2016 18:40, Juan Ceccarelli Arias wrote:
>>>>>
>>>>> I removed the data,frame=True...
>>>>> I obtain this warnings...
>>>>> Error in read.dta(fuente[i]) : not a Stata version 5-12 .dta file
>>>>> In addition: There were 50 or more warnings (use warnings() to see the
>>>>> first 50)
>>>>>
>>>>> the warnings() throws this
>>>>> Warning messages:
>>>>> 1: In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else
>>>>> paste0(labels,  ... :
>>>>> duplicated levels in factors are deprecated
>>>>> 2: In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else
>>>>> paste0(labels,  ... :
>>>>> duplicated levels in factors are deprecated
>>>>> 3: In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else
>>>>> paste0(labels,  ... :
>>>>> duplicated levels in factors are deprecated
>>>>> 4: In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else
>>>>> paste0(labels,  ... :
>>>>> duplicated levels in factors are deprecated
>>>>> 5: In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else
>>>>> paste0(labels,  ... :
>>>>> duplicated levels in factors are deprecated
>>>>>
>>>>> On Mon, Aug 22, 2016 at 2:32 PM, <ruipbarradas at sapo.pt> wrote:
>>>>>
>>>>> Hello,
>>>>>
>>>>> That argument doesn't exist, hence the error.
>>>>> Read the help page ?read.dta more carefully. You will see that already
>>>>> read.dta reads into a data.frame.
>>>>>
>>>>> Hope this helps,
>>>>>
>>>>> Rui Barradas
>>>>>
>>>>> Citando Juan Ceccarelli Arias <jfca283 at gmail.com>:
>>>>>
>>>>> Hi
>>>>> I need to apply some code over some stata files that are in folder.
>>>>> I've wrote this
>>>>>
>>>>> library(foreign)
>>>>>
>>>>> fuente=list.files("C:/Users/Jceccarelli/Bases/Stata[1]", pattern="dta$",
>>>>> full.names=FALSE)
>>>>>
>>>>> for (i in 1:length(fuente)){
>>>>>
>>>>> xxx=read.dta(fuente[i], to.data.frame=TRUE)
>>>>>
>>>>> }
>>>>>
>>>>> But i get this error
>>>>>
>>>>> Error in read.dta(fuente[i], to.data.frame = TRUE) :
>>>>> unused argument (to.data.frame = TRUE)
>>>>>
>>>>> What am i doing wrong?
>>>>>
>>>>>       [[alternative HTML version deleted]]
>>>>>
>>>>> ______________________________________________
>>>>> R-help at 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.htmland provide commented, minimal, self-contained,
>>>>> reproducible code.
>>>>>
>>>>> [[alternative HTML version deleted]]
>>>>>
>>>>> ______________________________________________
>>>>> R-help at 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.
>>>>>
>>>>> --
>>>>> Michaelhttp://www.dewey.myzen.co.uk/home.html[1]
>>>>>
>>>>>  _
>>>>
>>>> _[[alternative HTML version deleted]]
>>>>
>>>> ______________________________________________
>>>> R-help at 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._
>>>
>>> _ David WinsemiusAlameda, CA, USA_
>>
>> _ _

 

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