Hi,
I would like to split data into 10 parts. How do I do this in Knime?
Thanks
Do you mean splitting rows or splitting columns? And how do you want to split them?
Probably best if you append some sample data.
1 Like
I built this workflow that takes some data, uses random numbers to sort them and then split hem into a given number of parts and store them in KNIME tables. Still wondering if there is an easier way.
You could also combine an iteration of the Partitioning node.
kn_example_split_data_10_parts.knar (892.7 KB)
Thank you for your responses. I have to perform 10 fold cross-validation on 10% of the dataset and test on 90% of the dataset. Also, this has to be repeated 20 times. Looking to perform the cross-validation manually by dividing the dataset.
OK if you want cross-validation there are already nodes for that. You might put a loop around so you could multiply that.
https://www.knime.com/nodeguide/analytics/optimization/cross-validation-with-svm
Or you might want to try out the powerful H2O.ai nodes
2 Likes
Thank you, will try these out.