You can flag training samples by -generate byte training = (uniform() < X)-,
where X is the percentage of the total dataset that you want to use for
training. So, for example, if you want to use 33% for training and keep the
remaining 67% for holdout, then the commands would be:
set seed <seed>
generate byte training = uniform() < 0.33
<command> if training
Joseph Coveney
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sgsr100 wrote:
>Hi,
>Do you know how can a get a training sample randomly chosen from stata
>and how can I keep the remaining observations as a holdout sample.
>Thanks,
>Sandra
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