Re: how to combine multi-ASCII Files

Do not use NCL for this kind task, please.

A simple C-shell unix command:

cat foo*.txt >> new_combined.txt

will do the work.

Wei

huangwei@ucar.edu
VETS/CISL
National Center for Atmospheric Research
P.O. Box 3000 (1850 Table Mesa Dr.)
Boulder, CO 80307-3000 USA
(303) 497-8924

On Oct 8, 2013, at 8:52 AM, Dennis Shea <shea@ucar.edu> wrote:

> I had just about finished when I saw Wei's post.
> Her is what I had ... untested.
>
> 1] untested
>
> Use unix 'cat' via 'system' procedure.
> This would be the most efficient approach
>
>
> txtDir = "./"
> txtFiles = systemfunc("cd "+txtDir+" ; ls foo*.txt")
>
> system("cd "+txtDir+" ; cat foo*.txt >! FOOTXT")
>
> nRow = numAsciiRow(txtDir+"FOOTXT") ; contributed
> nCol = ????
>
> data = asciiread(txtDir+"FOOTXT", (/nRow,nCol/), "float"))
> printVarSummary(data)
>
> system("/bin/rm -f "+txtDir+"FOOTXT") ; optional
>
>
> [2] untested
>
> undef ("readMultAsciiFiles")
> function readMultAsciiFiles(txtPath[*]:string, nCol[1]:integer, txtType[1]:string)
> local nRow, nt, nRowTot, data, nrStrt, nrLast
> begin
>
> nRow = new( ntxt, "integer")
> do nt=0,ntxt-1
> nRow(nt) = numAsciiRow(txtDir+txtFiles(nt))
> end do
>
> print(nRow)
> print("===")
> nRowTot = sum(nRow)
> print("nRowTot="+nRowTot)
>
> data = new ( (/nRowTot,nCol/), txtType)
>
> nrStrt = 0
> nrLast = 0
> do nt=0,ntxt-1
> nrLast = nrStrt + nRow(nt) - 1
> data(nrStrt:nrLast,...) = asciiread (txtDir+txtFiles(nt), (/nRow(nt),ncol/), "float") )
> nrStrt = nrLast+1
> end do
>
> return(data)
> end
>
>
> ; Main
>
> txtDir = "./"
> txtFiles = systemfunc("cd "+txtDir+" ; ls foo*.txt")
> ntxt = dimsizes(txtFiles)
> nCol = ???
> data = readMultAsciiFiles(txtDir_txtFiles, nCol, "float")
> printVarSummary(data)
>
> On 10/8/13 8:35 AM, Wei Huang wrote:
>> NCL can do that job, but it is abuse of NCL.
>> A simple Unix "cat" command should do the work.
>>
>> Wei
>>
>> huangwei@ucar.edu
>> VETS/CISL
>> National Center for Atmospheric Research
>> P.O. Box 3000 (1850 Table Mesa Dr.)
>> Boulder, CO 80307-3000 USA
>> (303) 497-8924
>>
>>
>>
>>
>>
>>
>> On Oct 8, 2013, at 8:03 AM, Xi Chang <xi.chang01@gmail.com> wrote:
>>
>>> Hallo People,
>>>
>>> I have multi ASCII files containing 1 column and different rows per each file:
>>> foo1.txt, foo2.txt, etc..
>>>
>>> I need to combine them into a single ascii file,
>>> any solution to do this task in NCL?
>>> Thank you,
>>>
>>> Xi,
>>> _______________________________________________
>>> ncl-talk mailing list
>>> List instructions, subscriber options, unsubscribe:
>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>
>>
>>
>>
>> _______________________________________________
>> ncl-talk mailing list
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Received on Tue Oct 8 08:59:50 2013