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Mark Heckmann's user avatar
Mark Heckmann's user avatar
Mark Heckmann's user avatar
Mark Heckmann
  • Member for 12 years, 9 months
  • Last seen more than a month ago
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About

I work as a Data Analyst at Deutsche Bahn. More about me: https://markheckmann.de

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Top posts
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question
5
Model relation between two rank variables where ranks are nested within subjects in one variable
Jul 22, 2016
question
4
Exact test for m x n contingency table conditional (i.e. fixed by design) on one margin
Nov 27, 2015
question
3
Biplots: Adding supplementry points to a biplot which only use a subset of the variables
Jan 25, 2012
question
2
Compare column distribution with row margin (count matrix) given many expected values near zero
Sep 26, 2013
question
2
Publications in the social sciences or psychology based on freely available datasets?
Oct 13, 2014
question
2
Slopes and intercepts in mixed effects model vs. many regressions deviate a lot - why?
Apr 1, 2016
question
2
Resulting distribution when repeatedly sampling without replacement from weighted elements
May 9, 2016
answer
2
Is factor analysis appropriate for repertory grid data?
Sep 9, 2014
question
1
How to test proportion of each factor level against mean proportion across all levels (binary outcome)
Nov 9, 2015
question
1
infer (approximate) ranks or scale values from partial paired comparisons with only one rater
Dec 4, 2015
Top network posts
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74
avoid string printed to console getting truncated (in RStudio)
56
If file exists in folder read it else skip the processing part
47
Change timezone in a POSIXct object
43
How to index an element of a list object in R
34
Fast way to read xlsx files into R