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Split Files

A split file contains a list of pids split into several splits. Keeping the split in a file allows using the exact same split over several runs, or between stages such as creating a matrix with completions and modeling it. Pids not appearing in the split file should always be assumed to not be used.  

Format

Comment lines start with # . File is tab or space delimited. first line: NSPLITS Followed by tupples:  

The MedSplit Class

Defined in MedFeat/MedOutcome.h , this class contains the basic tools to create splits, and read/write them to files.

Create Random Splits for Patients

Inputs:

  • REPOSITORY_PATH - you will need data to retreive all patients
  • SPLIT_NUMBER - fill in the nubmer of splits you want to create
  • OUTPUT_PATH - output file to store the output split file in format 
1
Flow --create_splits "nsplits=$SPLIT_NUMBER" --rep $REPOSITORY_PATH --f_split $OUTPUT_PATH