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Re: please help [message #51230 is a reply to message #5448]

Sat, 04 November 2006 10:59

Jean H.
Messages: 472
Registered: July 2006

Senior Member

creon wrote:
> Thanks for your replies. yeah you're right the j++ is in the if
> block already. i've wrote it wrong in the message, sorry for that. the
> code is like that:
>
> j=0
> for i=0,20 do begin
> if (data.field08[i]='V') then begin
> dataV.time[j]=data.field10[i]
> dataV.object[j]=data.field07[i]
> dataV.count[j]=data.field09[i]
> dataV.filter[j]=data.field08[i]
> j++
> endif
> endfor
>
> Maybe i should explain better. i have some observation data with
> time, object, filter and count in each column. the structure called
> data carries those.There are three diffrent filters U,B, and V. now i
> want to pick the data in V filter and write it to the structure dataV.
> i am new to idl programming so that loop is what i could find to do
> this task. is there any other way to do this? or am i doing something
> wrong?
>

You could also use the where() function...

goodIndices = where(data.field08 eq 'V')
dataV.time = data.field10[goodIndices]

Jean

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[Message index]

		Please help By: lili on Fri, 15 December 1995 00:00
		Re: please help By: news.qwest.net on Fri, 03 November 2006 08:03
		Re: please help By: creon on Sat, 04 November 2006 01:00
		Re: please help By: Jean H. on Fri, 03 November 2006 10:49
		Re: please help By: Jean H. on Sat, 04 November 2006 10:59
		Re: please help By: David Fanning on Sat, 04 November 2006 08:23

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