Starting with R – language and data
Part 1: Starting with R – installation : http://msprogrammer.serviciipeweb.ro/2016/10/03/starting-with-r-as-in-sqlserver-r-server-and-vs-package/
Part 2: Starting with R – language and data http://msprogrammer.serviciipeweb.ro/2016/10/10/starting-with-r-language-and-data/
Part 3: Starting with R – basic and statistics http://msprogrammer.serviciipeweb.ro/2016/10/17/starting-with-r-basic-and-statistics/
Part 4: Making diagrams with R ( and transformation of data) : http://msprogrammer.serviciipeweb.ro/2016/10/31/making-diagrams-with-r/
Part 5: Forecasting currency exchange with R http://msprogrammer.serviciipeweb.ro/2016/11/06/forecasting-eurbnr-currency-exchange/
The http://tryr.codeschool.com/ also features a gentle introduction to R – if you do not know programming .
As in other programming languages, you can store values into a variable to access it later. Type x <- 42
to store a value in x
.
I have typed :
> x<-7
And site answers by:
`x` should be set to the number `42`. Try again! # this is the site answer ….
> x<-42 # made by me
( and site goes to next exercise – although you can trick to strings …)
The next best tutorial ( comprised on six parts) I have found here:
( did you know about data() command ?)
Anyway, those are the six parts
- Part 1: Introduction
- Part 2: Getting your data into R
- Part 3: Easy ways to do basic data analysis
- Part 4: Painless data visualization
- Part 5: Syntax quirks you’ll want to know
- Part 6: Useful resources
- Complete guide as PDF download (free registration required)
After that , if you have a Pluralsight subscription, this course is worth looking : http://www.pluralsight.com/courses/r-understanding-machine-learning - it gives you a short introduction to MachineLearning with R
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