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ioam / topographica

A general-purpose neural simulator focusing on topographic maps.
topographica.org
BSD 3-Clause "New" or "Revised" License
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How to collect the data of unit responses for "measure_or_tuning_fullfield"? #658

Closed windform2015 closed 8 years ago

windform2015 commented 8 years ago

Hi, I want to calculate orientation selectivity index then I need to collect the data of responses by neuron units to different orientation gratings, so I think I need to use the class "measure_or_tuning_fullfield" belonged to featuremapper.command. I run the syntax "measure_or_tuning_fullfield()" and get a movie about the orientation tuning of units in the full field for various contrasts, but I am struggling for : how to get the data for that ? I tried some ways but haven't work it out. Could you help give a hint, please ?

jbednar commented 8 years ago

If you're running any command in the notebook and get a figure displayed by HoloViews, you just need to type the same thing but add .data to the end if you want the data. E.g. if you do tunings = measure_or_tuning_fullfield() then typing tunings will get you a visualization of some sort, and tunings.data will give you whatever is inside. If you're looking at an element x, x.data will be the underlying data; otherwise it will be some sort of container that you can then look inside to find the data (indexed by various dimensions). The HoloViews tutorials at holoviews.org explain how to navigate these data structures...

windform2015 commented 8 years ago

Hi, thanks for your reply. Yes, before you answered it in #658 , just I still didn't figure it out since I didn't realize I need to look at the data structures instructed by holoviews.org. Sorry for asking the same question twice !