How to Write Functions in R - Introduction to R Programming - Part 11

Functions allow us to reuse code, saving us from having to re-write the same code again and again. Learn the main components of a function and how to create a simple function in R.

Table of Contents:
0:00 – Introduction
0:50 – Basic functions
2:25 – Calling functions

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[sadiqurrahman]

Thanks a lot. I have gone through your all these tutorials on R programming language. Waiting to have such type of easily explained more tutorials on other topics of R.

[baruchschwartz]

Excellent videos. Just finished the entire intro series!
Would be helpful if there was a link to some practice exercises!

[DividedStates]

I would avoid using dots in variable/function names and such. Dots can mean quite a lot in R, e.g. it specifies the object types in S3 methods. It only leads to confusions down the line.

[abuaksath]

Hi<-("you have a nice voice"header=TRUE

[Robotherapist]

Great explanation and clear video! You only spoke a little fast for me. Since English is not my first language, if you would articulate more clearly, it would help other foreign viewers and myself greatly. Thanks for your videos again! :)

[yaaqoubbelkhadria]

I am looking for a function in R that can help me deal with the different structures of the variance-covariance matrix.

[monafrank]

Hi! When I enter this code in R : " add.vect.df <- function(df, vect){new.df <- cbind(df, vect) return (new.df)} " I get the following notification: Error: unexpected symbol in "add.vect.df <- function(df, vect){new.df <- cbind(df, vect) return"
I dont understand what I am doing wrong, can you help me out?

[ahmed.h.m]

Error in { :
task 1 failed - "task 1 failed - "not a scalar return value""
In addition: There were 50 or more warnings (use warnings() to see the first 50)

i get this, how fix it

[victortanpengshen]

Can anyone tell me what is the lifetime of variable in r programmming?