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Re: how to find number of lines in an ASCII file? [message #12561 is a reply to message #12560]

Tue, 18 August 1998 00:00

Phillip & Suzanne[2] is currently offline

Phillip & Suzanne[2]
Messages: 3
Registered: August 1998

Junior Member

Jason Li wrote:
>
> Hi,
>
> I have an ASCII text file that contains data in a nice tabular form,
>
> 0 28660 1827.1 72.7705 -158.8828 3388.0 22.3846 10.8545
> 1 28661 1827.7 72.7701 -158.8752 3391.0 21.1213 10.6029
> 2 28662 1828.3 72.7698 -158.8677 3394.0 19.8743 10.3546
>
> I want to read them all and save into an array: data[8, numberOfLines]. But
> I don't know numberOfLines in the file before hand. What is the most efficient
> way to find that out?

The simplest method I've found for this is to read the data into a text array
as follows:

line=''
readf, lun, line
text = [line]
while (not eof(lun)) do begin
readf, lun, line
text = [text, line]
endwhile
data = fltarr[8, N_Elements(text)]
tmpdata = fltarr[8]
for i=0, N_Elements(text)-1 do begin
reads, text[i], tmpdata
data[*, i] = tmpdata
endfor

Phillip

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[Message index]

		how to find number of lines in an ASCII file? By: jyli on Wed, 19 August 1998 00:00
		Re: how to find number of lines in an ASCII file? By: Phillip & Suzanne[2] on Tue, 18 August 1998 00:00
		Re: how to find number of lines in an ASCII file? By: LC's No-Spam Newsread on Mon, 31 August 1998 00:00
		Re: how to find number of lines in an ASCII file? By: R. Bauer on Fri, 28 August 1998 00:00

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