How to use MetricMDS

[l8l]

This might be a naive question but I am unable to understand how to use metric MDS. When following the examples in the documentation, I only get classical MDS out. In the documentation, an example for classical MDS (cMDS) is provided, using the code

using MultivariateStats
# ... prepare data X ...
M = fit(MDS, X; maxoutdim=3, distances=false)
# returns "Classical MDS(indim = 4, outdim = 3)"

However, no example for metric MDS (mMDS) is given. Scrolling down, there are 2 sections, one explaining cMDS and one mMDS. In the mMDS section, the code provided to call mMDS seems to be the same as for cMDS:

mds = fit(MDS, X; distances=false, maxoutdim=size(X,1)-1)

There is no specification what one has to load before that to make the function return an mMDS object instead of a cMDS object. (Maybe this is also related to me lacking general knowledge of julia?) I tried things like

using MultivariateStats.MetricMDS
mds = fit(MDS, X; distances=false, maxoutdim=size(X,1)-1)

or

using MultivariateStats
mds = fit(MetricMDS, X; distances=false, maxoutdim=size(X,1)-1)

or

using MultivariateStats
mds = fit(MDS::MetricMDS, X; distances=false, maxoutdim=size(X,1)-1)

but all return errors. Is there a problem with the documentation or am I just doing a silly mistake? Thanks a lot!

[l8l]

Any ideas so far? I would have thought that this might be straightforward to resolve.