I'm interested in hearing about what statistics problems other data teams are trying to tackle. For me, I have data on energy usage in the United States, and we are trying to figure out ways to forecast energy demand as well as figure out ways to balance heavy loads on the power grid. The statistical challenges are in short term and long term time series forecasting. Regime changes such as weekdays -> weekends further complicate the problem, as well as external factors like whether variables. Spatial correlation is also a nontrivial issue.

What type of data do you have, and what questions are you hoping to answer? What statistical challenges are there?

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    $\begingroup$ Just to clarify, I did not downvote this question. Incorrect grammar doesn't make a question bad and downvotes are for poor or problematic questions, not incorrect grammar. If you would like to discuss why your original sentence was incorrect, I'd suggest asking at the English Language and Usage stackexchange site. $\endgroup$ Commented Aug 31, 2012 at 5:44
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    $\begingroup$ (-1) Sorry, I am not able to see the value of this question, for me it is like asking "what do you currently code with R and what are the challenges you are facing". Yes, it can be extending one's view on the world, but it is not a good question according to SE-standards. What is the definition of a list question? $\endgroup$
    – steffen
    Commented Aug 31, 2012 at 7:41
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    $\begingroup$ "Is" is correct. The subject of the sentence is "team" not "questions". J.C. Wong is right. $\endgroup$ Commented Aug 31, 2012 at 10:32
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    $\begingroup$ @Michael: collective nouns such as "team", "Microsoft", "band", etc. are singular in American English, but not in British English. "Microsoft are working on this" is unobjectionable in BrE. See Is “staff” plural?, Are collective nouns always plural, or are certain ones singular, and the related questions linked from there. $\endgroup$
    – RegDwight
    Commented Aug 31, 2012 at 12:50
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    $\begingroup$ @RegDwight Why make an issue about a noun being plural if it is at least singular to the American audience? $\endgroup$ Commented Aug 31, 2012 at 13:31

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I am working mostly with biological data, samples from humans and animals. Sometimes also cell cultures. It's in the -omics area so the ration of variables to observations is generally high (about 1:1, it's not genomics). So for visualization the usual techniques like PCA and PLS are very imporant.

There is also a large amount of standard linear modelling, where a problem is that we usually do not have the data to model the covariance structures and when we look at the response variables univariately we do not have the time to look at each model seperately, so we have to automate model selection and diagnostics as much as possible.

Finally, classification is also an imporant topic since diagnostic questions is often what brings customers to us.


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