Is it possible to get avarge gnd density per grain?

[huihu...@hotmail.com]

Hello Sir,

I would like to calculate avarge gnd density per grain. How can I perform this?

For example, how to get get avarge GND density per grain in gnd demo which is put on  the website "http://mtex-toolbox.github.io/files/doc/GND_demo.html" ?

Regards,

Huihui

[Rüdiger Kilian]

Hi,
in general, one should be able to average ny property over a grains using accumarray e.g. if gnd exists for each ebsd point:

[~,~,eindex] = unique(ebsd.grainId);
grain_averaged_gnd = accumarray(eindex,gnd,[],@nanmean);

Hope that works.

Cheers,
Rüdiger
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From: mtex...@googlegroups.com <mtex...@googlegroups.com> on behalf of huihu...@hotmail.com <huihu...@hotmail.com>
Sent: Wednesday, February 13, 2019 4:55:10 PM
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Subject: {MTEX} Is it possible to get avarge gnd density per grain?

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[huihu...@hotmail.com]

Dear Rüdger,

  

Thank you for  your kind help!

 I tried the code, but it didnt work. some errors happen, as follows:

>> [~,~,eindex] = unique(ebsd.grainId); 

grain_averaged_gnd = accumarray(eindex,gnd,[],@nanmean); 

Error using accumarray

Second input VAL must be a vector with one element for each row in SUBS, or a scalar.

 Thank you very much!

 Huihui 

 

[Rüdiger Kilian]

Hi, so what is your variable gnd?

Cheers,
Rüdiger
________________________________________
From: mtex...@googlegroups.com <mtex...@googlegroups.com> on behalf of huihu...@hotmail.com <huihu...@hotmail.com>

Sent: Thursday, February 14, 2019 4:36:42 PM
To: MTEX
Subject: Re: {MTEX} Is it possible to get avarge gnd density per grain?