mlr: Build multiple linear regression model
In conmolfields: Continuous molecular fields

Build multiple linear regression model

1	mlr(df, stepwise = TRUE)

`df`
`stepwise`

##---- Should be DIRECTLY executable !! ----
##-- ==>  Define data, use random,
##--	or do  help(data=index)  for the standard data sets.

## The function is currently defined as
function (df, stepwise = TRUE) 
{
    names <- names(df)
    ncols <- length(names)
    propname <- names[ncols]
    formula <- paste(propname, "~ .")
    model <- lm(formula, df)
    if (stepwise) 
        model <- step(model)
    plot_regr(fitted.values(model), fitted.values(model) + residuals(model))
    model
  }