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Cauder
  • Member for 5 years, 3 months
  • Last seen more than 1 year ago
14 votes
10 answers
12k views

Is a distribution that is normal, but highly skewed, considered Gaussian?

3 votes
2 answers
395 views

How robust is the normality assumption for two sample independent t-tests?

3 votes
2 answers
517 views

What's the right test of significance for a categorical independent variable and categorical dependent variable?

3 votes
1 answer
5k views

What's the purpose of `tunegrid` in the caret package?

2 votes
1 answer
503 views

Will I break my model if I replace missing values with `Unknown`?

2 votes
1 answer
72 views

one way anova to compare each factor against the mean

2 votes
1 answer
340 views

How do I run cross validation on a decision tree in an uplift model?

1 vote
1 answer
144 views

How do I code interaction terms when I have dummy variables?

1 vote
0 answers
25 views

Is there a quick way to check the significance for each category of a predictor?

1 vote
2 answers
1k views

Does the multinomial coefficient create combinations or permutations?

0 votes
1 answer
143 views

Why is the formula for permutations of size one n!

0 votes
0 answers
536 views

How do I do an AB test with a binary response variable?

0 votes
0 answers
619 views

How do I diagnose collinearity with rfe() from the caret package?

0 votes
1 answer
109 views

What's the right t-test for comparing the distribution of a response variable across two categories for the same sample?

0 votes
0 answers
25 views

Is this the right way to think about relative probability?

0 votes
0 answers
63 views

How do I know whether my sample is fair?

0 votes
0 answers
25 views

How do I deal with `NA` in a numeric vector when they provide information?

0 votes
0 answers
1k views

What's the right way to make a null distribution?

0 votes
1 answer
329 views

Is the t-interval and student's t-distribution the same?