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Results tagged with r
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user 3162
Use this tag for any *on-topic* question that (a) involves `R` either as a critical part of the question or expected answer, & (b) is not *just* about how to use `R`.
21
votes
95% Confidence Interval for Proportions in R
@Coatless's method will get the job done in most cases (including the OP's case). However, for completeness, I thought I'd add a couple of other options.
Bootstrap Method
The function below draws n …
- 707
11
votes
Accepted
Why does this distribution look completely different after splitting into groups?
You're seeing the effect of R choosing different bandwidths for the grouped and ungrouped plots. … In the output below, notice how R chooses narrower bandwidths when considering each group separately, as compared with the case where both groups are combined. …
- 707
6
votes
Accepted
Standard deviation of residuals from a linear regression
Yes, that's correct. You can also extract this result directly from the model object. For example:
2/sd(resid(mtcars_lm))
[1] 0.6674783
- 707