check_input_args function

Sanity checks for arguments passed to predict_delta_comps()

check_input_args(dataf, y, comps, covars, deltas)

Arguments

• dataf: A data.frame containing data
• y: Name (as string/character vector of length 1) of outcome variable in dataf
• comps: Character vector of names of compositions in dataf. See details for more information.
• covars: Character vector of covariates names (non-comp variables) in dataf or NULL for none (default).
• deltas: A vector of time-component changes (as proportions of compositions , i.e., values between -1 and 1). Optional.

Details

Throws errors for any problematic input. Returns TRUE invisibly if no issues found.