How to replace NaN in tables?

So I have a large table with lots of NaNs when importing it from a text file. Is there any way to leave those cells blank when initially importing or delete the NaNs after importing? I've tried

HabExEnglishPropCopy(~any(~isnan(HabExEnglishPropCopy), :),:)=[];

but the errors say either "any" is not a defined variable or that isnan is not valid for "table" arguments. Any help?

Answer 1

[Peter Perkins]

You should look at ismissing, fillmissing, rmmissing, and at the various options in readtable and detectimportoptions.