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Re: How to read a file in zip or gz format using IDL? [message #2508 is a reply to message #2507]

Wed, 03 August 1994 14:03

tai
Messages: 14
Registered: June 1994

Junior Member

Tan, Jun (j.tan@rutherford.ac.uk) wrote:
: I am asking for help to read a file in zip or gz format using IDL. At the
: moment, I have a huge data file in ASCII format about 10 Mbytes, it thus
: takes a long time to read in all the data. I wonder it may take less time if
: the data is compressed using either zip or gzip methods. But how can I read
: such compressed file? Any advice over there is highly appreciated.

10 megs, yikes! I would recommend using restore (after an initial
save); i.e. load your ASCII data into memory, then do a

save, bigdata, filename = 'bigdata.sav'

Then, whenever you need to load it in, use

restore, filename = 'bigdata.sav'

I've found this to be faster than any other method.

Alan

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[Message index]

		How to read a file in zip or gz format using IDL? By: j.tan on Wed, 03 August 1994 08:17
		Re: How to read a file in zip or gz format using IDL? By: tai on Wed, 03 August 1994 14:03
		Re: How to read a file in zip or gz format using IDL? By: 8015 on Thu, 04 August 1994 08:34
		Re: How to read a file in zip or gz format usin By: chase on Fri, 05 August 1994 08:33
		Re: How to read a file in zip or gz format using IDL? By: j.tan on Fri, 05 August 1994 05:33
		Re: How to read a file in zip or gz format usin By: oet on Thu, 04 August 1994 21:42

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