Spatial Classification OPF Experiments

Engineering NuPIC
1

Hello,

I’m testing out opf/experiments/spatial_classification with category_0, except I’m trying to add a second field, similar to the scalar_1 experiment.

So the csv dataset looks like this:

classification,field1,field2

string,string,string

,,

0,0,0

1,1,1

0,0,0

1,1,1

and so on...

But I’m getting the exception: "Invalid file format: different number of fields in the header rows of file …category_0.csv (3, 0, 3) from nupic/data/file_record_stream.py:

image

This makes sense as they’re not all the same length, the specials header is empty, but I can’t figure out why I’m getting this error when the original file looks like this:

classification,field1

string,string

,

0,0

1,1

0,0

1,1

...

Does this mean a special value must be defined when adding a second field?

Thanks,
Dee

2

I’ve never worked with “spatial_classification” specifically, but it looks like the first row is empty (just “,”).
I’d try deleting that row and rerunning.
Not sure if that’ll fix it, just the first thing I’d do.

3

Hi @sheiser1,

Thanks so much for the reply. That line is apparently a header file for “specials”, I tried removing this line but no luck.

You got me on the right track though as I thought then to try removing all blank lines and it worked!

Thanks a million!

1 Like