If base::solve.default() is called with a 'qr' object, the following
will take place:
if(inherits(a, "qr")) {
warning("solve.default called with a \"qr\" object: use 'qr.solve'")
return(solve.qr(a, b, tol))
}
Note how the warning says that qr.solve() should be used, whereas
solve.qr() is called.
Should the warning just say:
warning("solve.default called with a \"qr\" object: use 'solve.qr'")
or
warning("solve.default called directly with a \"qr\" object: use 'solve'")?
/Henrik