col_group_val: returns an atomic vaector or a data frame
model frames coerced to a data frame before a call to model_frame_basic_G
General implementation attempted
tidy_model_fit function implemented
global options used to define which models can be fitted
code re-formatted
.onLoad hook added
utils functions `xy_fit` and `formula_fit` added
print statement deprecated
cbind added to model frame manipulation functions
%...in% functions added
order_by_name added
col_groups_name added
empty column groups not catted
as.data.frame.model.frame debugged
model_frame => as.model_frame
call to as.model_frame_basic deprecated
fitted frames thought about more carefully
as.fitted_frame added
apply_model will be re-thought using this framework
as.fitted_frame no longer generic
stop message edited