In the case of mixtures, it is necessary to map a set of continuous mixture components into a lower dimensional representation of exposure using a pre-determined algorithm then estimate a target parameter on this more interpretable exposure.
This is hard to read. I suggest adding ", and" between "algorithm" and "then", so it becomes
In the case of mixtures, it is necessary to map a set of continuous mixture components into a lower dimensional representation of exposure using a pre-determined algorithm, and then estimate a target parameter on this more interpretable exposure.
Another editorial comment on your JOSS submission.
On lines 84-87 you write
This is hard to read. I suggest adding ", and" between "algorithm" and "then", so it becomes