7,576 reputation
1736
bio website thinkinator.com
location Washington DC, United States
age
visits member for 4 years
seen 10 mins ago

Long-time R user, new Stata user, occasional Stan user, and currently learning Scala. Data Scientist at ERI, an incredible company where we do everything from fraud detection and visualization, to training and and text mining.


21h
comment Logistic Regression - Model Does not Fit
Please clarify: "the likelihood of the question getting answered" refers to having one or more answers posted, or to having an answer accepted?
21h
comment Logistic Regression - Model Does not Fit
I'd disagree with your hypothesis that the number of comments is correlated with having an answer. People tend to comment on a question instead of answering, either because the question is unclear and needs work, or because they think that the answer they have is too trivial to put as an actual answer. See my next comment...
Oct
24
awarded  Revival
Oct
24
revised An example of when bootstrap has less bias than classically approximated estimates?
added 477 characters in body
Oct
24
comment Can I say there would be only 2 groups with such features in this data and prove it using cluster analysis?
What do you mean by "features"? I think I know what you mean, but...
Oct
24
revised An example of when bootstrap has less bias than classically approximated estimates?
added 95 characters in body
Oct
24
revised An example of when bootstrap has less bias than classically approximated estimates?
added 468 characters in body
Oct
24
answered An example of when bootstrap has less bias than classically approximated estimates?
Oct
23
revised How to use DLM with Kalman filtering for forecasting
added 2 characters in body
Oct
22
revised What is considered to be “good” classification rate?
added 81 characters in body
Oct
22
answered What is considered to be “good” classification rate?
Oct
22
comment Comparing medians
Wouldn't a Monte Carlo permutation/randomized/rerandomized test be appropriate? Not sure how to do it in Stata, though.
Oct
21
comment How to test a claim about a confidence interval (real case)
In addition to whuber's comments: It sounds like you're going to gather some data at a single location in a single day, which is arguably not what they're talking about. If not, how are you going to gather your sample in a way that reflects their N?
Oct
13
comment Interpreting Cluster Heat Maps From R
It would help if the heat map's rows were sorted by columns. It would make groups much more visible.
Oct
13
revised Cluster interpretation
added 497 characters in body
Oct
13
comment Cluster interpretation
OK, I'll edit a bit, though I can't think of any simple examples.
Oct
13
reviewed Approve suggested edit on Thinning chains in BUGS/JAGS
Oct
13
answered Cluster interpretation
Oct
8
comment Why did K means clustering do a poor job in R
what the OP did is like clustering people by weight and including as the two variables their weight and name.
Sep
30
awarded  Explainer