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[DEMO] Set the seed #194

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[DEMO] Set the seed #194

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ageorgou
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An example of how to set the seed. This should result in the same values being generated every time. This also means that all the runs will have the same id and be identical, so it only makes sense for single runs.

@jennifersmith203
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Thanks Anastasis, this will be REALLY useful. I tried copying the changes into my branch but it's not working at the moment - is that because we haven't merged PR #193 ("Replace random functions") yet? Thanks.

@andrew-phillips-1
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Hi Jenny

Yes I was thinking the same - I intend to try it with the new PR merged. Please let me know if you find it works

@ageorgou
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Yes, I should have made that clear. This is on top of the changes in #193 (switching to rand('uniform') etc).

It would be good to eventually also merge these changes (setting the seed), but they shouldn't be enabled all the time (or all the runs would be identical). Perhaps we can find a way that they can be toggled on and off.

@jennifersmith203
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Thanks, yes that makes sense. It would be handy to have them all turned off as default but with a quick way to turn them all on when needed.

@andrew-phillips-1
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Yes agree - thanks.

@ageorgou
Set the seed to reproduce runs
3576563
@ageorgou
Set seed at correct place for repetition
a55104e 
There is an additional data step for r&da2, where the seed was
not set before. The place where it was set did not involve any
randomness.
Also use the more appropriate macro variable, as e was not strictly
increasing.
@ageorgou ageorgou changed the base branch from replace-random to core September 21, 2021 08:59
@ageorgou ageorgou mentioned this pull request Nov 24, 2021
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@ageorgou @jennifersmith203 @andrew-phillips-1