In H2O Flow, you can split datasets within Flow for use in training and testing.

1. To split a frame, click the Assist Me button, then click splitFrame. Note: You can also click the drop-down Data menu and select Split Frame….
2. From the drop-down Frame: list, select the frame to split.

3. In the second Ratio entry field, specify the fractional value to determine the split. The first Ratio field is automatically calculated based on the values entered in the second Ratio field.

   Note: Only fractional values between 0 and 1 are supported (for example, enter .5 to split the frame in half). The total sum of the ratio values must equal one. H2O automatically adjusts the ratio values to equal one; if unsupported values are entered, an error displays.

4. In the Key entry field, specify a name for the new frame.
5. (Optional) To add another split, click the Add a split link. To remove a split, click the X to the right of the Key entry field.
6. Click the Create button.