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.

top accounts reputation activity favorites subscriptions
Top Questions
Top Answers
908
Comments in Markdown
stackoverflow.com

137
What does [t] and [ht] mean?
tex.stackexchange.com

96
Opening all files in a folder, and applying a function
stackoverflow.com

86
Can principal component analysis be applied to datasets containing a mix of continuous and categorical variables?
stats.stackexchange.com

85
How to add several authors with different affiliations in beamer?
tex.stackexchange.com

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

77
How to tell if data is “clustered” enough for clustering algorithms to produce meaningful results?
stats.stackexchange.com

75
Using principal component analysis (PCA) for feature selection
stats.stackexchange.com

74
When to use regularization methods for regression?
stats.stackexchange.com

68
How to choose nlme or lme4 R library for mixed effects models?
stats.stackexchange.com

61
How would you explain covariance to someone who understands only the mean?
stats.stackexchange.com

57
How to increase the space between the bars in a bar plot in ggplot2?
stackoverflow.com

53
How to plot ROC curves in multiclass classification?
stats.stackexchange.com

52
How to compute error rate from a decision tree?
stackoverflow.com

52
Explain the difference between multiple regression and multivariate regression, with minimal use of symbols/math
stats.stackexchange.com

51
How to visualize what ANOVA does?
stats.stackexchange.com

48
How to calculate pseudo-$R^2$ from R's logistic regression?
stats.stackexchange.com

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

48
What is Deviance? (specifically in CART/rpart)
stats.stackexchange.com

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

46
Where to cut a dendrogram?
stats.stackexchange.com

44
How to actually plot a sample tree from randomForest::getTree()?
stats.stackexchange.com

43
What is the use of percent signs (%) at the end of lines?
tex.stackexchange.com

42
Choosing a clustering method
stats.stackexchange.com

42
How to measure/rank “variable importance” when using CART? (specifically using {rpart} from R)
stats.stackexchange.com

41
Under what conditions should Likert scales be used as ordinal or interval data?
stats.stackexchange.com

40
Kendall Tau or Spearman's rho?
stats.stackexchange.com

39
Feature selection for “final” model when performing cross-validation in machine learning
stats.stackexchange.com

38
How can I make a horizontal dashed line?
tex.stackexchange.com

38
Outlier detection in data mining
stackoverflow.com

1 2 3 4 5 … 10