Does this code support Missing Value with imputation?

[mariolpantunes]

Dear all,

Is there a method to work with missing values?
I looked in the documentation and I have space data (lots of zeros) that represent missing data. Is there a method that considers 0 as missing data and creates a mask or uses imputation to discard the missing values from the cost function?

[lincoln-harris]

I am also curious about this. Adding an option for a mask supplied by the user or support for ignoring NaNs would be useful.

[mariolpantunes]

Dear @lincoln-harris, I ended up developing my own NMF factorization with imputation, here