AimsVoiStat Linux version

AIMS library and commands usage

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bottlaender
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Joined: Wed May 18, 2005 10:35 am
Location: CEA, Orsay, France

AimsVoiStat Linux version

Post by bottlaender »

Warning to users :
The content of the output file has changed in the last version.
The post-processing when using this file may be now wrong and have to be adapted.
To developpers : can you please inform the users for these modifications that alter the output files.
Michel Bottlaender
Service Hospitalier Frederic Joliot, CEA
Tel : 01 69 86 77 12
Fax : 01 69 86 77 49
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Yann Cointepas
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Post by Yann Cointepas »

A lot of people are doing post-processing on the result of this command. I agree that modification of the output should be done more carefully.
jdubois
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Joined: Thu Jun 16, 2005 3:18 pm

StdDev for AimsVoiStat

Post by jdubois »

The content of the output file has changed for "StdDev". What is calculated now? Is it the standard deviation over the VOI? What was calculated in the previous versions? The difference is huge between the results... Thank you for your reply!
Jessica
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riviere
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Post by riviere »

Well, apparently nobody wants to answer you :?
The last significant modif to the VoiStat stuff appears to be:
Change 13797 by maroy@maroy-shfj on 2005/01/19 15:49:54

Major bug fixed in Roi Stat, concerning standard deviation of signal in each region.

Affected files ...

... //depot/aimsalgo/main/src/aimsalgo/roi/roistat.h#11 edit

Differences ...

==== //depot/aimsalgo/main/src/aimsalgo/roi/roistat.h#11 (text) ====

205c205
< std=(float)sqrt( (double)(std-square(mean)*pn2) )/(float)(pn2-1);
---
> std=(float)sqrt( (double)(std-square(mean)*pn2) / (float)(pn2-1) );
This seems to suggest the stdDev was wrong before (in all your earlier studies!)... but I don't know more about it.
Denis
Tupo

Post by Tupo »

It is really??
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