Blog Archives

Assessing the Accuracy of our models (R Squared, Adjusted R Squared, RMSE, MAE, AIC)

July 10, 2017
By
Assessing the Accuracy of our models (R Squared, Adjusted R Squared, RMSE, MAE, AIC)

Assessing the accuracy of our model There are several ways to check the accuracy of our models, some are printed directly in R within the summary output, others are just as easy to calculate with specific functions. R-Squared This is probably the most commonly used statistics and allows us to understand the percentage of variance in the target variable explained by the...

Read more »

Linear Mixed Effects Models in Agriculture

July 10, 2017
By
Linear Mixed Effects Models in Agriculture

This post was originally part of my previous post about linear models. However, I later decided to split it into several texts because it was effectively too long and complex to navigate.If you struggle to follow the code in this page please refer to this post (for example for the necessary packages): Linear Models (lm, ANOVA and ANCOVA) in Agriculture Linear...

Read more »

Generalized Linear Models and Mixed-Effects in Agriculture

July 10, 2017
By
Generalized Linear Models and Mixed-Effects in Agriculture

After publishing my previous post, I realized that it was way too long and so I decided to split it in 2-3 parts. If you think something is missing in the explanation here it may be related to the fact that this was originally part of the previous post (http://r-video-tutorial.blogspot.co.uk/2017/06/linear-models-anova-glms-and-mixed.html), so please look there first (otherwise please post your...

Read more »

Linear Models, ANOVA, GLMs and Mixed-Effects models in R

June 28, 2017
By
Linear Models, ANOVA, GLMs and Mixed-Effects models in R

As part of my new role as Lecturer in Agri-data analysis at Harper Adams University, I found myself applying a lot of techniques based on linear modelling. Another thing I noticed is that there is a lot of confusion among researchers in regards to what technique should be used in each instance and how to interpret the model. For...

Read more »

Spatio-Temporal Point Pattern Analysis in ArcGIS with R

July 19, 2016
By
Spatio-Temporal Point Pattern Analysis in ArcGIS with R

This post would probably be the last in my series about merging R and ArcGIS. In August unfortunately I would have to work for real and I will not have time to play with R-Bridge any more.In this post I would like to present a toolbox to perform some introductory point pattern analysis in R through ArcGIS. Basically, I...

Read more »

Spatio-Temporal Point Pattern Analysis in ArcGIS with R

July 19, 2016
By
Spatio-Temporal Point Pattern Analysis in ArcGIS with R

This post would probably be the last in my series about merging R and ArcGIS. In August unfortunately I would have to work for real and I will not have time to play with R-Bridge any more.In this post I would like to present a toolbox to perform some introductory point pattern analysis in R through ArcGIS. Basically, I...

Read more »

Time Series Analysis in ArcGIS

July 15, 2016
By
Time Series Analysis in ArcGIS

In this post I will introduce another toolbox I created to show the functions that can be added to ArcGIS by using R and the R-Bridge technology.In this toolbox I basically implemented the functions I showed in the previous post about time series analysis in R.Once again I prepared a sample dataset that I included in the GitHub archive...

Read more »

Time Series Analysis in ArcGIS

July 15, 2016
By
Time Series Analysis in ArcGIS

In this post I will introduce another toolbox I created to show the functions that can be added to ArcGIS by using R and the R-Bridge technology.In this toolbox I basically implemented the functions I showed in the previous post about time series analy...

Read more »

The Power of ggplot2 in ArcGIS – The Plotting Toolbox

July 11, 2016
By
The Power of ggplot2 in ArcGIS – The Plotting Toolbox

In this post I present my third experiment with R-Bridge. The plotting toolbox is a plug-in for ArcGIS 10.3.x that allows the creation of beautiful and informative plot, with ggplot2, directly from the ESRI ArcGIS console.As always I not only provide t...

Read more »

The Power of ggplot2 in ArcGIS – The Plotting Toolbox

July 11, 2016
By
The Power of ggplot2 in ArcGIS – The Plotting Toolbox

In this post I present my third experiment with R-Bridge. The plotting toolbox is a plug-in for ArcGIS 10.3.x that allows the creation of beautiful and informative plot, with ggplot2, directly from the ESRI ArcGIS console.As always I not only provide the toolbox but also a dataset to try it out. Let's start from here...DataFor testing the plotting tool,...

Read more »

Search R-bloggers

Sponsors

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)