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Re: read multiple files with varying names [message #66644 is a reply to message #66601]

Fri, 29 May 2009 05:51

sophie.hoss
Messages: 5
Registered: May 2009

Junior Member

On 28 Mai, 17:25, "Jean H." <jghas...@DELTHIS.ucalgary.ANDTHIS.ca>
wrote:
> sophie.h...@gmail.com wrote:
>> s=strarr(cols)
>> n=0
>> while (~ eof(file) and (n lt rows_data -1 )) do begin
>> ; Read a line of data
>> readf,lun,s
>> ; Store it in data
>> data[*,n]=s
>> n=n+1 (*****)
>> end
>> data=data[*,0:n-1]
>
>> I did the while-loop because I learned that IDL might not read every
>> line separately. Don't know if it's the most elegant version but at
>> least it is one.
>
>> for the sake of my sanity, any help is appreciated!
>> cheers,
>> sophie
>
> Sophie,
> when reading strings, the whole line is read. So when you read in S, you
> are reading nb_cols LINES.. s[0] = line0, s[1] = line1 etc. You would
> have to read the whole line then separate the columns.
>
> You can do it in one step
>
> data = strarr(nbLines)
> readf,lun,data
>
> Jean- Zitierten Text ausblenden -
>
> - Zitierten Text anzeigen -

Jean, thanks for that, but I'm still stuck with the same problem no
matter how I do it. I cut the code short to

CD, 'filepath'
ci_files = FILE_SEARCH('ci*', COUNT=num_ci_files_found)

for i = 0,(num_ci_files_found-1) do begin

file = ci_files(i)
rows = File_Lines(file)
OpenR, lun, file, /Get_Lun
header = StrArr(34)
ReadF, lun, header
Point_Lun, -lun, currentLocation
data = strarr(12, rows-(n_elements(header))) ; i know there's 12
columns
readF, lun, data

; from here on I want to extract one column only and
save this column (radiation data from one station for one month) in a
file where I later add values from all other stations for this
specific month, then take the average from all stations over the whole
month)

--> READF: End of file encountered.

Do I need to include a format statement? I read some posts saying it
is sometimes (in easy cases) better to forget about any format
statements...

thanks for your input...
sophie, going crazy

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[Message index]

		Re: read multiple files with varying names By: Jean H. on Mon, 25 May 2009 08:04
		Re: read multiple files with varying names By: David Fanning on Mon, 25 May 2009 08:01
		Re: read multiple files with varying names By: David Fanning on Fri, 29 May 2009 09:45
		Re: read multiple files with varying names By: David Fanning on Fri, 29 May 2009 09:39
		Re: read multiple files with varying names By: sophie.hoss on Fri, 29 May 2009 08:54
		Re: read multiple files with varying names By: Jean H. on Fri, 29 May 2009 07:01
		Re: read multiple files with varying names By: David Fanning on Fri, 29 May 2009 06:22
		Re: read multiple files with varying names By: David Fanning on Fri, 29 May 2009 06:15
		Re: read multiple files with varying names By: sophie.hoss on Fri, 29 May 2009 05:51
		Re: read multiple files with varying names By: Jean H. on Thu, 28 May 2009 08:25
		Re: read multiple files with varying names By: sophie.hoss on Thu, 28 May 2009 07:44

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