Complex sentence: Sometimes, though, we might want to compare a model of the data y with a model of the logarithm of the data\\ log (y); more generally, we might want to compare a model of the data with a model of transformed data.
Split into simpler sentences: Sometimes, though, we might want to compare a model of the response variable,, with a model of the logarithm of the response variable,. More generally, we might want to compare a model of the data with a model of transformed data.