Tagged Questions
4
votes
0answers
48 views
Clustered standard errors vs. multilevel modeling?
I've skimmed through several books (Raudenbush & Bryk, Snijders & Bosker, Gelman & Hill, etc.) and several articles (Gelman, Jusko, Primo & Jacobsmeier, etc.), and I still haven't ...
0
votes
0answers
45 views
standard error of the mean for clustered data
I have a dataset with clustered data (observations within groups) and would like to make some descriptive plots.
Now, I am a little bit lost on how to present the dispersion of the data (what kind of ...
2
votes
2answers
102 views
2
votes
2answers
384 views
How to derive a distance function based on multiple variables for cluster analysis?
I am not a statistician, so please excuse my lack of statistics knowledge/terminology.
I have bunch of network nodes that I want to run cluster analysis on and identify clusters. So as far as I ...
5
votes
1answer
160 views
Variant of discriminant analysis for known multiple independent classifications?
I have a large data set: over 100,000 data points, each with 60 dimensions. I want to display the data in 2D to visibly maximize the separation between classes, which I know for each point. I asked a ...
5
votes
2answers
183 views
Does a distance have to be a “metric” for an hierarchical clustering to be valid on it?
Let us say that we define a distance, which is not a metric, between N items.
Based on this distance we then use an Agglomerative hierarchical clustering.
Can we use each of the known algorithm ...
3
votes
0answers
172 views
Inversions in hierarchical clustering
I'm using heatmap.2 to cluster my data, using the centroid method for clustering and the maximum method for calculating the distance matrix:
...
3
votes
1answer
912 views
Clustered standard errors and multi-level models
Stata allows estimating clustered standard errors in models with fixed effects but not in models random effects? Why is this?
By clustered standard errors, I mean clustering as done by stata's ...
