Dear Roger,
This is an interesting puzzle and I started to look at it when your
second message arrived. I can simplify your code slightly in two places,
here:
if (exists("fqssnames")) {
mff <- m
ffqss <- paste(fqssnames, collapse = "+")
mff$formula <-
Here is a revised snippet that seems to work the way that was intended.
Apologies to anyone
who wasted time looking at the original post. Of course my interest in simpler
or more efficient
solutions remains unabated.
if (exists("fqssnames")) {
mff <- m
mff$formula <- Terms
I need some help with a formula processing problem that arose from a seemingly
innocuous request
that I add a “subset” argument to the additive modeling function “rqss” in my
quantreg package.
I’ve tried to boil the relevant code down to something simpler as illustrated
below. The formulae
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