What is FA and PCA and difference between them?

pca
factor_analysis

#1

Hello…
Would I like to know Factor Analysis and Principal Component Analysis in depth?
How will it be helpful to Data Scientist?

Thanks


#2

@hargan.gandhi-
Factor Analysis- It is the correlation method to find and describe the underlying factor driving data values for a large data set of variables.

Why we need
1- Determine if a factor is important or not.
2-Examine the interaction of the variables on the factor.

PCA- It is a mathematical procedure that uses an orthogonal transformation to convert a set of values of possibly correlated M variable into a set of values of K uncorrelated variables called principal component.

Hope this helps!

Regards,
Hinduja


#3

Thanks #hinduja1234