Extracts elevation and slope of a standardized major axis (sma) or major axis (ma) fit, for each of the groups if the fit was by group.
# S3 method for sma
coef(object, ...)Object of class 'sma'.
Further arguments ignored.
A dataframe with the slope(s) and elevation(s), and their confidence intervals. If the fit was by multiple groups, fits by all groups are returned.