How do you apply a function to each element of a dataset vector, and then return that vector?

Question

For context, I have a dataset v, and I want to apply 1-exp(-x[i]*theta) to the i'th element of v in succession.

Assume I know the value of theta. I then want to store this as a vector so that I can sort it, and apply it to another function (a 'goodness-of-fit test statistic).

Is there a standard way of doing this?

Welcome to SO, Bernoon. Please read [how to create a minimal, reproducible example](https://stackoverflow.com/help/minimal-reproducible-example) and update your question. — Len Greski, Apr 25 '20 at 18:37

score 1 · Accepted Answer · answered Apr 25 '20 at 18:39

1

R is manipulating vectors so, if v is a vector, you can directly pass your equation as follow:

v2 <- 1 - exp(-v*theta)

And it will be apply to each element of v and stored it in v2 object (which will also be a vector).

here an example:

v <- 1:10
theta  = 5

> 1 - exp(-v*theta)

[1] 0.9932621 0.9999546 0.9999997 1.0000000 1.0000000 1.0000000 1.0000000 1.0000000 1.0000000 1.0000000

answered Apr 25 '20 at 18:39

dc37

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As it is it is difficult to help, please edit your question and provide a reproducible example of you matrix as described here: https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example. Also, please provide the code behind `compute`. – dc37 Apr 25 '20 at 19:39

How do you apply a function to each element of a dataset vector, and then return that vector?

1 Answers1