T-test for distance between 2 Gaussians
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Hello,
I have an image with eye-tracking data for it for two classes of people (25 people in each class). I've calculated the mean eye position and variance for the two classes over time. So, for a given time t, I have two Gaussians with variance in the x and y direction. I'm looking for a t-test to detect when the difference between the two Gaussians is significant. Can someone direct me in the right direction for this problem?
Many thanks!
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the cyclist
2014 年 6 月 3 日
If you have the Statistics Toolbox at your disposal, then you can use the ttest2() function to do this. You would apply this to the raw data, without needing to calculate the mean or variance yourself. Type
doc ttest2
for details.
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Zbigniew
2014 年 6 月 3 日
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the cyclist
2014 年 6 月 3 日
Hm. A t-test is a one-dimensional test. I don't know the equivalent for two-dimensional data.
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