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Re: 3D matrix [message #89802 is a reply to message #89800]

Thu, 04 December 2014 03:55

Helder Marchetto
Messages: 520
Registered: November 2011

Senior Member

On Thursday, December 4, 2014 12:45:26 PM UTC+1, g.na...@gmail.com wrote:
> dimension keyword is not allowed in call to mean.
>
> I tried the b = mean(a[0:9,*,*]) but I end up with a single value which is not what I need.

IDL> a = findgen(100,200,200)
IDL> b = mean(a[0:9,*,*], dimension=1)
IDL> help, b
B FLOAT = Array[200, 200]
IDL> !version
{
"ARCH": "x86_64",
"OS": "Win32",
"OS_FAMILY": "Windows",
"OS_NAME": "MicrosoftWindows",
"RELEASE": "8.4",
"BUILD_DATE": "Sep272014",
"MEMORY_BITS": 64,
"FILE_OFFSET_BITS": 64
}

I guess you don't have the latest version of IDL.
Well, calculating the mean is not that difficult:

b = total(a[0:9,*,*], 1)/10.0

Cheers,
Helder

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[Message index]

		3D matrix By: g.nacarts on Thu, 04 December 2014 03:09
		Re: 3D matrix By: Helder Marchetto on Thu, 04 December 2014 03:18
		Re: 3D matrix By: g.nacarts on Thu, 04 December 2014 03:45
		Re: 3D matrix By: Helder Marchetto on Thu, 04 December 2014 03:55
		Re: 3D matrix By: g.nacarts on Thu, 04 December 2014 03:53

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