To_csv method is not working

[bibs2091]

🐛 Bug

I was trying to save my dataset to a CSV file but deepchem is telling me that the the method to_csv doesn't exist for numpydataset or diskdataset.

To Reproduce

If you run the example in the official docs:

import numpy as np
X = np.random.rand(10, 10)
dataset = dc.data.DiskDataset.from_numpy(X)
dataset.to_csv('out.csv')  

You will have an error "AttributeError: 'DiskDataset' object has no attribute 'to_csv'"

Expected behavior

Environment

• OS: Macos
• Python version: 3.9
• DeepChem version: 2.6.1

[arunppsg]

dataset has to be NumpyDataset.

import numpy as np
X = np.random.rand(10, 10)
dataset = dc.data.NumpyDataset(X=X)
dataset.to_csv('out.csv')

If you want to use to_csv in DiskDataset, you should have deepchem nightly version installed - DiskDataset.to_csv was added recently.

[bibs2091]

@arunppsg I understood thatNumpyDataset.to_csv()is working, but according to the example you gave me, NumpyDataset also doesn't work!

[osbm]

In that case using NumpyDataset.to_dataframe().to_csv would help:

import numpy as np
X = np.random.rand(10, 10)
dataset = dc.data.NumpyDataset(X=X)
dataset.to_dataframe().to_csv("out.csv")