Summarizing Centre Method Fits

summary method for class icm.

# S3 method for icm
summary(object, ...)

Arguments

object	an object of class "icm", usually, a result of a call to icm.
…	other arguments.

Value

The function summary.icm returns the following elements, given an object of the class "icm",

coefficients

a named vector of coefficients.

RMSE.l

root mean square error for the lower interval bound.

RMSE.u

root mean square error for the upper interval bound.

References

Billard, L. and Diday, E. (2000) Regression analysis for interval-valued data. Data Analysis, Classification and Related Methods: Proceedings of the Seventh Conference of the International Federation of Classification Societies, Springer-Verlag, pp. 369-374.

Lima Neto, E.A. and De Carvalho, F.A.T. (2008). Centre and range method to fitting a linear regression model on symbolic interval data. Computational Statistics and Data Analysis, 52, 1500--1515.

See also

icm

Examples

##-- Continuing the  icm() example:
data("Cardiological.MinMax", package = "iRegression")
ex.icm <- icm(PulseMin~SystMin+DiastMin,PulseMax~SystMax+DiastMax,data=Cardiological.MinMax)
ex.sum <- summary(ex.icm)
ex.sum
#> Call:
#> icm.default(formula1 = PulseMin ~ SystMin + DiastMin, formula2 = PulseMax ~ 
#>     SystMax + DiastMax, data = Cardiological.MinMax)
#> 
#>        Estimate     StdErr
#> [1,] 21.1708061 18.4290175
#> [2,]  0.3288879  0.1074485
#> [3,]  0.1698512  0.1327378
#> 
#> RMSE.L:
#> [1] 11.0942
#> RMSE.U:
#> [1] 10.41365