add a random seed for trainAndValData splitation #761
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sperlingxx
requested review from
Yancey0623,
tonyyang-svail,
typhoonzero and
weiguoz
typhoonzero
reviewed
Sep 2, 2019
| } | ||
| // create a table, then split it into train and val tables | ||
| stmt := fmt.Sprintf("CREATE TABLE %s LIFECYCLE %d AS SELECT *, RAND() AS %s FROM (%s) AS %s_ori", target, temporaryTableLifecycle, randomColumn, slct, target) | ||
| stmt := fmt.Sprintf("CREATE TABLE %s LIFECYCLE %d AS SELECT *, RAND(42) AS %s FROM (%s) AS %s_ori", target, temporaryTableLifecycle, randomColumn, slct, target) |
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@sperlingxx Please:
- define the ultimate number 42 as a const value.
- add comments why need to fix the random seed for better readability.
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Add a fixed random seed in sql which generating a random table for trainAndValData splitation. With fixed seed, we can keep data splitation return consist trainAndValDataSet.