Construct a list of data.frames based upon an input data.frame and a list of one or more at values
build_datalist(data, at = NULL, as.data.frame = FALSE, ...)A list of data.frames, unless as.data.frame = TRUE in which case a single, stacked data frame is returned.
A data.frame containing the original data.
A list of one or more named vectors of values, which will be used to specify values of variables in data. All possible combinations are generated. Alternatively, this can be a data frame of combination levels if only a subset of combinations are desired. See examples.
A logical indicating whether to return a single stacked data frame rather than a list of data frames
Ignored.
Thomas J. Leeper
find_data, mean_or_mode, seq_range
# basic examples
require("datasets")
build_datalist(head(mtcars), at = list(cyl = c(4, 6)))
str(build_datalist(head(mtcars), at = list(cyl = c(4,6), wt = c(2.75,3,3.25))), 1)
str(build_datalist(head(mtcars), at = data.frame(cyl = c(4,4), wt = c(2.75,3))))
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