How to calculate dimension using PCA

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Kong
Kong 2020 年 3 月 25 日
回答済み: Jalaj Gambhir 2020 年 4 月 7 日
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?

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Jalaj Gambhir
Jalaj Gambhir 2020 年 4 月 7 日
You can specify the number of components you require while applying PCA using 'NumComponents' option.
Have a look here.

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