Number of datasets is different from number of contexts

[kaurao]

First of all thanks for releasing the package.

I am trying to use it with 3 (or 4) context datasets and it fails with an error:

"
Number of datasets is different from number of contexts.
"

I traced it to line 84 in clusternomics.R where the length of the list is checked with number of datasets, but the length of the $context should be checked instead.

I tried to fix that and install from source and it seems to work.