101 reputation
bio website wiki.scn.sap.com/wiki/pages/…
location Switzerland
age 39
visits member for 2 years, 2 months
seen Jan 14 at 12:26

During the day, I create software to forecast retail sales and calculate order proposals. Lots of time series, with an emphasis on fast, automatic and robust data cleansing and forecasting. I'm an elected director for the International Institute of Forecasters and an Associate Editor for their practitioner-oriented forecasting journal Foresight. At night, I switch hats and do inferential statistics for academic clinical and biological psychology. My main tool is the statistical computing environment R.

profile for Stephan Kolassa on Stack Exchange, a network of free, community-driven Q&A sites

comment efficient way to invert a Matrix plus a diagonal one
Thx. That could have an impact on possible approaches, so I took the liberty of editing your question to include this info. I'll delete my comment and suggest you do so, too, to clean up.
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