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Re: Sorting with IDL... Please give me any suggestions!!! [message #52032]

Thu, 21 December 2006 07:28

yp
Messages: 42
Registered: February 2005

Member

If 'nm' is a string array and 'sr' is a float array, what data type is
'gr' or your [nm,sr] ?
You should read the data in a structure. See READ_ASCII and
ASCII_TEMPLATE helps.
Something like this:
template = { VERSION: 1.0, $
DATASTART: N, $
.
.
.
FIELDNAMES: ['nm','sr']. $
FIELDLOCATIONS : LONARR[2], $
FIELDGROUPS: [0,1] }

data=RAED_ASCII(filename, template=template)

You have to learn how to create this template via read_ascii (or use
either build_ascii_template or transread routines)

Then sort the 'sr' field and extract the index. x=sort(data.sr)
name=data.nm(x)
score=data.sr(x)

There are many different ways of reading mixed data types (search this
group, you can find numerous examples and also read through David
Fanning's website).

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		Re: Sorting with IDL... Please give me any suggestions!!! By: yp on Thu, 21 December 2006 07:28
		Re: Sorting with IDL... Please give me any suggestions!!! By: Braedley on Thu, 21 December 2006 07:24

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