Stack Exchange

chl

Paris, France

http://www.aliquote.org

Biostatistics/Psychometrics consulting, bohemian scientist.

Also on linkedin and twitter, but check my website for more information.

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Top Questions
Top Answers
1005
Comments in Markdown
stackoverflow.com

144
What does [t] and [ht] mean?
tex.stackexchange.com

99
How to add several authors with different affiliations in beamer?
tex.stackexchange.com

98
Opening all files in a folder, and applying a function
stackoverflow.com

95
Can principal component analysis be applied to datasets containing a mix of continuous and categorical variables?
stats.stackexchange.com

81
Using principal component analysis (PCA) for feature selection
stats.stackexchange.com

80
How to tell if data is “clustered” enough for clustering algorithms to produce meaningful results?
stats.stackexchange.com

80
How to efficiently manage a statistical analysis project?
stats.stackexchange.com

79
When to use regularization methods for regression?
stats.stackexchange.com

71
How to choose nlme or lme4 R library for mixed effects models?
stats.stackexchange.com

68
How would you explain covariance to someone who understands only the mean?
stats.stackexchange.com

63
How to increase the space between the bars in a bar plot in ggplot2?
stackoverflow.com

59
How to plot ROC curves in multiclass classification?
stats.stackexchange.com

57
Explain the difference between multiple regression and multivariate regression, with minimal use of symbols/math
stats.stackexchange.com

53
How to compute error rate from a decision tree?
stackoverflow.com

53
How to calculate pseudo-$R^2$ from R's logistic regression?
stats.stackexchange.com

52
How to visualize what ANOVA does?
stats.stackexchange.com

52
What is Deviance? (specifically in CART/rpart)
stats.stackexchange.com

50
Where to cut a dendrogram?
stats.stackexchange.com

48
How to actually plot a sample tree from randomForest::getTree()?
stats.stackexchange.com

48
Is adjusting p-values in a multiple regression for multiple comparisons a good idea?
stats.stackexchange.com

46
Choosing a clustering method
stats.stackexchange.com

46
Subset dataframe by multiple logical conditions of rows to remove
stackoverflow.com

46
What is the use of percent signs (%) at the end of lines? (Why is my macro creating extra space?)
tex.stackexchange.com

44
How to measure/rank “variable importance” when using CART? (specifically using {rpart} from R)
stats.stackexchange.com

43
Under what conditions should Likert scales be used as ordinal or interval data?
stats.stackexchange.com

42
Kendall Tau or Spearman's rho?
stats.stackexchange.com

42
Zip or enumerate in R?
stackoverflow.com

41
Feature selection for “final” model when performing cross-validation in machine learning
stats.stackexchange.com

40
Why is there a difference between manually calculating a logistic regression 95% confidence interval, and using the confint() function in R?
stats.stackexchange.com

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