What is the meaning of ##N_i## ##m-dimensional## samples

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SUMMARY

The discussion clarifies the meaning of ##N_i## in the context of ##m-dimensional## samples, where ##i=1, 2, 3,...##. Specifically, ##N_i## represents the number of samples for each class, with each sample having ##m## features. The interpretation provided by the user, identifying ##N_1## as a class of persons with ##m## features and similarly for ##N_2##, is confirmed as accurate by other participants. This understanding is crucial for analyzing multi-class datasets in machine learning.

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Homework Statement



I want to know what is the meaning of ##N_i## ##m-dimensional## samples where ##i=1, 2, 3,...##

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The Attempt at a Solution


I know the meaning of N*m. It means N persons and m means that each person has m features. Please guide what is the meaning of ##N_i## ##m-dimensional## features.

Thanks.
 
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Hi,

I think I got it. It means class of ##N_1## persons having ##m## features, class of ##N_2## persons having ##m## features and so on.
Let me know if its correct.
Zulfi.
 
You gave very little context but based on what you have said, I think your interpretation is correct. There are ##N_1## m-dimensional samples, ##N_2## m-dimensional samples, etc. You've left out any context that would allow us to connect these numbers to "persons" or "features", so I have to assume you're right about those definitions.
 

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