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Re: Reading a table of data quickly [message #34146 is a reply to message #34139]

Tue, 25 February 2003 09:01

Paul Van Delst[1]
Messages: 1157
Registered: April 2002

Senior Member

"R.G. Stockwell" wrote:
>
> CelticBlues wrote:
>> I have a table of floating points I need to read from a file. I will know
>> at run time, from other information in the file, the number of rows and
>> cols.
>>
>> Assume I have read the rows into the var numberOfRows and likewise for
>> numberOfColumns.
>>
>> How can I quickly, preferrably all at once, read in the table?
>>
>> I assume I first need to create an array into which to put the data...
>>
>> ; create array for data
>> data = dblarr(numberOfRows, numberOfColumns)
>>
>> ; read it
>> ; ?
>>
>> Thanks,
>> Ed
>>
>>
>
> openr,1,filename
> readf,1,data
> close,1

doesn't it require

data = dblarr(numberOfColumns, numberOfRows)?

i.e. isn't the "column" the index that would vary the fastest (just like in ASCII files)?

paulv

--
Paul van Delst
CIMSS @ NOAA/NCEP/EMC
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[Message index]

		Re: Reading a table of data quickly By: Pavel Romashkin on Tue, 25 February 2003 15:50
		Re: Reading a table of data quickly By: Paul Van Delst[1] on Tue, 25 February 2003 09:01
		Re: Reading a table of data quickly By: CelticBlues on Tue, 25 February 2003 07:32
		Re: Reading a table of data quickly By: R.G. Stockwell on Tue, 25 February 2003 07:23
		Re: Reading a table of data quickly By: grunes on Sat, 01 March 2003 10:54

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