# clustering evaluation based on a gold standard

I have a dataset of items and I want to measure how my clustering method works. I'm using R and simple k-means clustering. I have a lets say gold standard of my clusters and I want to see how good is the result of my clustering algorithm based on the features I used. Is there any straightforward way to do that in R? I was thinking about something like Jaccard similarity per item. I mean the intersection/union of clusters containing each item and somehow mixing them together!

## migrated from stackoverflow.comAug 21 '14 at 10:14

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• This doesn't sound like a programming question. It sounds like you need advice on statistical methods for comparisons of clustering methods. This may be a better fit for Cross Validated. – MrFlick Aug 20 '14 at 22:48

What you are looking for is the adjusted rand index in the mclust package. It measures the correlation between two partitions or clusterings. Check the wiki. You would compare it to your 'gold standard' to see how well they agree.