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

Gold Member

## Homework Statement

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

No equation

## 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.

Related Precalculus Mathematics Homework Help News on Phys.org
Gold Member
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.

RPinPA
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.