Dear R-people,
I would like to construct a model frame while keeping eventual NA-s in
it. The code looks like in lm():
m - match(c(formula, data, subset, weights, na.action,
offset), names(mf), 0)
mfO - mf[c(1, m)]
mfO$drop.unused.levels - TRUE
mfO[[1]] -
On Thu, 18 Jan 2007, Ott Toomet wrote:
Dear R-people,
I would like to construct a model frame while keeping eventual NA-s in
it. The code looks like in lm():
m - match(c(formula, data, subset, weights, na.action,
offset), names(mf), 0)
mfO - mf[c(1, m)]
