Control how much output trim writes to the screen while
fitting the model. By default, trim only returns the output
and does not write any progress to the screen. After calling
set_trim_verbose(TRUE), trim will write information
about running iterations and convergence to the screen during optmization.
set_trim_verbose(verbose = FALSE)[logical] toggle verbosity. TRUE means: be
verbose, FALSE means be quiet (this is the default).
Other modelspec:
check_observations(),
read_tcf(),
read_tdf(),
trimcommand(),
trim()