Support for sums over arrays #43
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weshinsley
approved these changes
Sep 17, 2024
vignettes/errors.Rmd
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| @@ -399,6 +399,58 @@ a <- parameter(type = "integer", differentiate = TRUE) | |||
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| Here, you must decide if `a` should be differentiable (in which case remove the `type` argument) or an integer (in which case remove the `differentiate` argument). | |||
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| # `E1033` | |||
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| The argument to sum must be an array. This can either be a complete array (in which case the argument will be a symbol). So this is fine: | |||
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Need something connected with the "either" - maybe "or a partial array, by summing across one or more dimensions"
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This PR adds support for support for sums - both complete and partial - using C++ functions I've added into dust in mrc-ide/dust2#71
The syntax is identical to that in odin1 and I've added a few notes into the functions vignette to explain the idea.
Very little is required here for prod (mrc-ide/odin#316) but I'd like to do that separately once we're a bit further along.
Update branch pin after merging dust2