## Installation of IRkernel

The tours in R are Jupyter notebooks. To run them (which we recommend), you need to install IRkernel through https://github.com/IRkernel/IRkernel.

## Installation of the libraries

The tours make use of different external libraries such as:

Each time you encounter a new library in a numerical tour, you will need to install it.

In order to install each of them on the R kernel for Jupyter, you need to run the following line on an R terminal:\

```
install.packages("name_of_library","directory_of_IRkernel_libraries", dep=TRUE)
```

The directory_of_IRkernel_libraries is the place of the subfolder R\library inside the installation folder of Anaconda3 on your computer.
Example of the installation of imager:

```
install.packages("imager","C:\Program Files\Anaconda3\R\library", dep=TRUE)
```

You can use from the R prompt the command home to locate this directory:

Each tour makes use of a toolbox package that needs to be downloaded as a .zip file, and then unzipped within your working directory (from which you will run the notebooks): (https://github.com/gpeyre/numerical-tours/tree/master/r/nt_toolbox).

Alternatively, you can download the whole numerical_tours: (https://github.com/gpeyre/numerical-tours/tree/master/r/).

## Solutions of the exercises

The solutions to the exercises are available online.