Displaying 2 results from an estimated 2 matches for "mindij".
Did you mean:
mindir
2013 Jun 22
1
metaMDS Error, Nan similar or negative values
...or handling them. metaMDSdist allow you to
add a small value to the zero dissimilarities. The details are in the code,
but effectively all zero distances are replaced by half the smallest non
zero distance. You could do a similar replacement yourself if you feel this
is warranted and/or justified.
minDij <- min(Dij[Dij > 0) / 2
Dij[Dij <= 0] <- minDij
But still I don't understand how can I modify the NaN values. In my data I
don't have any NA values. All the cells are either +ve or zero.
Please help me with this. Should I just replace all the NaN values with
zero? Please advic...
2010 Jan 12
1
Non-metric multidimensional scaling (NMDS) help
Hi,
I am currently working on some data and feel that NMDS would return an
excellent result. With my current data set however I have been experiencing
some problems and cannot carry out metaMDS. I have tried with a few smaller
data sets which I created for practice sake and this has worked fine.
I think it is the set up of my data set that is causing me trouble. I have
18 columns and 18 rows,