How to calculate dimension using PCA

Hello.

I want to classify videos.

After applying dimensionality reduction like PCA, I got this data.

The original data : 25290 x 25

The reduced data : (2~25) x 25

I can't reduce data more 25 dimension.

I want to get more dimension like (50 x 25), (100 x 25), (100 x 25), etc.

However, the dimension is reduced until 25 x 25. Could you explain this problem?

Answer 1

[Jalaj Gambhir]

You can specify the number of components you require while applying PCA using 'NumComponents' option.

Have a look here.