List-like test_spec behavior broken in benchmark function

[utf]

Passing a list-like object as test_spec in the MatPipe.benchmark function does not produce the correct behavior.

Specifically, this line is the issue:

automatminer/automatminer/pipeline.py

Line 217 in e3e2862

traindf = df.iloc[~np.asarray(test_spec)]

After some testing I've realized you cannot use ~ and iloc in that combination.

E.g.:

# load dataframe
len(df)
> 174

len(df.iloc[np.asarray([1, 2, 3, 4])])
> 4

len(df.iloc[~np.asarray([1, 2, 3, 4])])
> 4

In that last case you would expect an output of 170. E.g. all structures except the testing set.

I have a fix for this inbound.

[ardunn]

closed by commits leading up to ce2245c