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Results tagged with r
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user 8991
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`.
1
vote
Support vector regression in R
Try using the kernlab package, you can use ksvm(...,type='eps-svr') to get regression. It's smart enough to automatically select regression if given a continuous variable.
A grid search for paramete …
- 1,563
8
votes
How to add non-linear trend line to a scatter plot in R?
So you might want to try polynomial regression in this case, and (in R) you could do something like model <- lm(d ~ poly(v,2),data=dataset). … On the other hand, if you've got a line which is "wobbly" and you don't know why it's wobbly, then a good starting point would probably be locally weighted regression, or loess in R. …
- 1,563
2
votes
How to determine best cutoff point and its confidence interval using ROC curve in R?
What's more important - there's very few datapoints behind this curve. When you do decide how you're going to make the sensitivity/specificity tradeoff I'd strongly encourage you to bootstrap the cur …
- 1,563
14
votes
Best way to present a random forest in a publication?
But if you want a plot for illustrative/pedagogical purposes, the following snippet of R might be useful. Not hard to add "split point" to the edge text if you need it. …
- 1,563