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cbeleites
  • Member for 13 years, 4 months
  • Last seen more than a week ago
  • Germany
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About

Analytical chemist, vibrational spectroscopist and chemometrician.

I do professional chemometrics consulting and training as well as chemometric method development and coding:

Claudia Beleites
Chemometrix GmbH
Södeler Weg 19
61200 Wölfersheim
Germany

phone: +49 (15 23) 1 83 74 18
USt-ID: DE306376280 email: claudia (dot) beleites (at) chemometrix (dot) gmbh

I maintain the R package hyperSpec for handling spectroscopic data sets in R.

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answer
114
Nested cross validation for model selection
Jul 22, 2013
answer
99
Choice of K in K-fold cross-validation
May 4, 2012
answer
67
Is it wrong to rephrase "1 in 80 deaths is caused by a car accident" as "1 in 80 people die as a result of a car accident?"
Jan 22, 2019
answer
61
Hold-out validation vs. cross-validation
Jun 25, 2014
answer
53
What's a good way to use R to make a scatterplot that separates the data by treatment?
Jun 20, 2012
answer
51
Variables are often adjusted (e.g. standardised) before making a model - when is this a good idea, and when is it a bad one?
Dec 2, 2011
answer
50
Cross-validation or bootstrapping to evaluate classification performance?
Sep 26, 2013
answer
46
PCA and the train/test split
Apr 10, 2013
answer
46
How to choose a predictive model after k-fold cross-validation?
Mar 15, 2013
answer
42
How to split the dataset for cross validation, learning curve, and final evaluation?
May 1, 2014
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if statement in R can only have one line?