Checking if there is any missing value to prevent the algorithm from running

[YagmurGULEC]

Thanks for this implementation. It is really helpful. I'd like to contribute to prevent the solver from unnecessary running for complete data. I found a way to check if the data has any Nan values in the solver method of the base class. Thanks for the consideration.

[sergeyf]

Thank you for your contribution. We aren't really updating the package. Since this isn't a bug, I am sorry to say we won't be prioritizing this PR. I'll leave it open - if we have to merge a bugfix some day, I'll merge this too so the pip update has both.