topic How to I select an 80/10/10 split when doing AutoML in Machine Learning https://community.databricks.com/t5/machine-learning/how-to-i-select-an-80-10-10-split-when-doing-automl/m-p/70277#M3278 <P>Headline says it all. I am doing a regression and want to select a testvaltrain split that is not 60/20/20. Anyone know how to do this?</P> Wed, 22 May 2024 15:31:17 GMT bothma2 2024-05-22T15:31:17Z How to I select an 80/10/10 split when doing AutoML https://community.databricks.com/t5/machine-learning/how-to-i-select-an-80-10-10-split-when-doing-automl/m-p/70277#M3278 <P>Headline says it all. I am doing a regression and want to select a testvaltrain split that is not 60/20/20. Anyone know how to do this?</P> Wed, 22 May 2024 15:31:17 GMT https://community.databricks.com/t5/machine-learning/how-to-i-select-an-80-10-10-split-when-doing-automl/m-p/70277#M3278 bothma2 2024-05-22T15:31:17Z Re: How to I select an 80/10/10 split when doing AutoML https://community.databricks.com/t5/machine-learning/how-to-i-select-an-80-10-10-split-when-doing-automl/m-p/70295#M3279 <P>You can't do it but there is a workaround:<BR /><BR />You could use a fake time column and force it to be 80/10/10.&nbsp;</P> <P><BR /><SPAN>If you specify this column (in the advanced section - "Time column for training/validation/testing split"), the dataset is split into training, validation, and test sets by time. The earliest points are used for training, the next earliest for validation, and the latest points are used as a test set. Try using all the earliest points as the same timestamp, then another for validation and another one for testing.&nbsp;</SPAN></P> <P>&nbsp;</P> <P>&nbsp;</P> Wed, 22 May 2024 18:02:25 GMT https://community.databricks.com/t5/machine-learning/how-to-i-select-an-80-10-10-split-when-doing-automl/m-p/70295#M3279 mhiltner 2024-05-22T18:02:25Z Re: How to I select an 80/10/10 split when doing AutoML https://community.databricks.com/t5/machine-learning/how-to-i-select-an-80-10-10-split-when-doing-automl/m-p/70296#M3280 <P>Wouldn;t that just do a 60/20/20 split?</P> Wed, 22 May 2024 18:06:46 GMT https://community.databricks.com/t5/machine-learning/how-to-i-select-an-80-10-10-split-when-doing-automl/m-p/70296#M3280 bothma2 2024-05-22T18:06:46Z Re: How to I select an 80/10/10 split when doing AutoML https://community.databricks.com/t5/machine-learning/how-to-i-select-an-80-10-10-split-when-doing-automl/m-p/70318#M3281 <P>You'd need to put 80% of your data with the earliest timestamp, then 10% with another one and 10% with another.&nbsp;</P> Wed, 22 May 2024 20:46:52 GMT https://community.databricks.com/t5/machine-learning/how-to-i-select-an-80-10-10-split-when-doing-automl/m-p/70318#M3281 mhiltner 2024-05-22T20:46:52Z