CODEWITHSUNDEEP
rpackage
sion_corn
sion_corn

Reputation: 3151

How to find R package for function referenced in https://www.rdocumentation.org

I am trying to learn how to do math in R. I found the following website but it does not specify which package certain functions are bundled in.

For example, I am trying to run the example on Taylor Series. On the website, it gives a code snippet near the bottom of the page:

taylor(sin, 0, 4)

I am getting the following output:

Error in taylor(sin, 0, 4) : could not find function "taylor"

Then, I wanted to check what the official documentation says about the function, so I entered 

?taylor

and got the following:

No documentation for ‘taylor’ in specified packages and libraries:

So, experienced users of R, is https://www.rdocumentation.org reputable? If you use it, how can you find which package you need to install in order to use certain functions?

Upvotes: 0

Views: 108

Answers (2)

Mihai Chelaru
Mihai Chelaru

Reputation: 8262

There is an R package called sos that can help you search rapidly through packages for a keyword. You can try running the following code and see that it outputs a single match, the pracma package that others have mentioned here.

install.packages("sos")
library(sos)
findFn("taylor(sin, 0, 4)")

Output looks like: enter image description here

Upvotes: 1

onlyphantom
onlyphantom

Reputation: 9613

In the url itself: https://www.rdocumentation.org/packages/pracma/versions/1.9.9/topics/taylor

The page itself also specified the package from which that function originate.

In any case you’ll see that it is from the pracma package. Hope that’s helpful!

Upvotes: 1

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