ccrm
is used to fit a linear regression model to symbolic interval-valued variables based on the inequality constraints over
the range variables (Lima Neto and De Carvalho, 2010).ccrm(formula1, formula2, data, ...)
formula
": the description of the first model to be fitted. formula
": the description of the second model to be fitted. ccrm
returns an object of class "ccrm
" including at least the following elements:
Lima Neto, E.A. and De Carvalho, F.A.T. (2010). Constrained linear regression models for symbolic interval-valued variables. Computational Statistics and Data Analysis, 54, 333--347.
summary.ccrm
, coef.ccrm
, fitted.ccrm
, residuals.ccrm
, formula
data("Cardiological.CR", package = "iRegression")
ex.ccrm <- ccrm("PulseC~SystC+DiastC","PulseR~SystR+DiastR",data=Cardiological.CR)
ex.ccrm
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