CollapseMarginal: Collapse marginals
In OpasnetUtils: Opasnet Modelling Environment Utility Functions

Description Usage Arguments Details Value Author(s) Examples

Apply functions (only sample at the moment) over ovaribale indices

1	CollapseMarginal(variable, cols, fun = "mean", probs = NULL, ...)

`variable`	an ovariable
`cols`	vector of column names or indices to collapse
`fun`	`character` name of function to be used to summarize
`probs`	list of vectors defining the distribution of values in a column index
`...`	excess arguments are ignored

Samples over a fully defined column index (marginal) treating it as a nuisance parameter. Increases the joint distribution uncertainty (loses information). Weighted sampling is also possible.

Used to streamline heavy models (output has fewer rows of data).

See also: http://en.opasnet.org/

Input ovariable with possibly lighter output.

T. Rintala teemu.rintala.a@gmail.com

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test <- Ovariable("test", output = data.frame(City = c("Helsinki", "Espoo"), 
    Iter = 1, testResult = 1:2), marginal = c(TRUE, TRUE, FALSE))
CollapseMarginal(test, "City", "mean")