Unable to write training data / model in Pd

[jrdooley]

Using: Pd 0.49.1, ml-lib 0.18.1, macOS 10.13.6

ml-lib objects used: ml.svm, ml.mlp

After adding features to either the svm or mlp objects, I am unable to write out the data to a file using the write my_mlp_data message. This is still the case before and after training a model. The Pd console shows the following error message:

error: ml.mlp: unable to write training data to path: mlp_data.data error: ml.mlp: unable to write model to path: mlp_data.model

[jamiebullock]

I can reproduce this, but I think probably it's the documentation that's incorrect.

For me it works if I do write /path/to/my_ml-lib_data where /path/to is some directory writeable by Pd.

I suspect if you don't include a path it either tries to write to /my_ml-lib_data or $(pwd)/my_ml-lib_data where $(pwd) is something like /Applications/Pd.app/Contents/MacOS ... and therefore it fails due to permissions.

I might update the help file and also print a more helpful error message.

Can you confirm using the full path works for you?

[jrdooley]

@jamiebullock Writing the full path works.

I had thought that I'd tried writing the full pathname, but I guess I imagined it. Problem solved.