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Do you find this weird too? [message #56853]

Mon, 19 November 2007 02:04

lasse
Messages: 48
Registered: February 2007

Member

Hi there,

hope this gets through to you guys, now with all the spam and whatnot.
Anywho, maybe this has come up before, here is some code

aa = randomu(12L, 200, 100)
ff = findgen(100)
maxs = max(aa, maxind, dimension=2)
print, maxind[0:10]
help, ff[maxind[0:10]]
plot, ff[maxind[0:10]]

Now I find this weird, because maxind is an array of longs clearly
bigger than the size of ff but IDL does not complain and plots
something (btw not what I want but this is solved with array_indices).
Is this something to do with the fact that maxind is a 1D
representation of 2D array indices? I hope it is because otherwise why
does IDL not fall over complaining that maxind[0], which on my machine
is 19200, is bigger than the size of ff.

Mhmm

print, ff[maxind[0]]

falls over

print, ff[maxind[0:1]]

doesn't.

btw print, !version
{ x86 linux unix linux 6.2 Jun 20 2005 32 64}

Cheers
Lasse

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Do you find this weird too?

By: lasse on Mon, 19 November 2007 02:04

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