3904 search results for "GIS"

Changing the Light Azimuth in Shaded Relief Representation by Clustering Aspect

September 24, 2014
By

Some time ago I published an article on "The Cartographic Journal" regarding a method to automatically change the light azimuth in shaded relief representations.This method was based on clustering the aspect derivative of the DTM. The method was develo...

Read more »

In-depth introduction to machine learning in 15 hours of expert videos

September 23, 2014
By
In-depth introduction to machine learning in 15 hours of expert videos

In January 2014, Stanford University professors Trevor Hastie and Rob Tibshirani (authors of the legendary Elements of Statistical Learning textbook) taught an online course based on their newest textbook, An Introduction to Statistical Learning with Applications in R (ISLR). I found it to be an excellent course in statistical learning (also known as "machine learning"), largely...

Read more »

Seeing the (day)light with R

September 23, 2014
By
Seeing the (day)light with R

The arrival of the autumnal equinox foreshadows the reality of longer nights and shorter days here in the northeast US. We can both see that reality and distract ourselves from it at the same time by firing up RStudio (or your favorite editor) and taking a look at the sunrise & sunset times based on

Read more »

How to publish R and ggplot2 to the web

September 23, 2014
By
How to publish R and ggplot2 to the web

by Matt Sundquist, Plotly Co-founder It's delightfully smooth to publish R code, plots, and presentations to the web. For example: Shiny makes interactive apps from R. Pretty R highlights R code for HTML. Slidify makes slides from R Markdown. Knitr and RPubs let you publish R Markdown docs. GitHub and devtools let you quickly release packages and collaborate. Now,...

Read more »

NCEAS Codefest Follow-up

September 23, 2014
By

The week after labor day, we had the pleasure of attending the NCEAS open science codefest event in Santa Barbara. It was great to meet folks like the new arrivals at the expanding Mozilla Science Lab, Bill Mills and Abby Cabunoc (Bill even already has a great post up about the codefest), and see...

Read more »

Generate slope fields in R and Python

September 21, 2014
By
Generate slope fields in R and Python

Here is a short post on how to generate a quick slope field in R and Python. If you do not know what a slope field is, well I am not the best person to explain it to you since it is a relative new concept for me as well. From what I’ve understood on the subject, a slope...

Read more »

Build Predictive Model on Big data: Using R and MySQL Part-1

September 21, 2014
By
Build Predictive Model on Big data: Using R and MySQL Part-1

Wellcome to the series blog posts. Since long time, I am writing post on Machine learning with R. Today I am gonna discuss on big data problem while fitting machine learning on it and its solution using MySQL and R. Before we jump directly to solution, let us discuss about big data little bit. (You The post Build...

Read more »

Brazilian Presidential Election

September 20, 2014
By
Brazilian Presidential Election

TweetFor those who follow this tale, the chart below shows the hitherto of vote intentions among the viable candidates as reported in various polls. Data collected over 2012 were simply disregarded and those from 2013 enter in the model as prior values (covariance) for the 2014 estimates. The big dots at the end of the … Read More...

Read more »

Using the Debug Option in readDICOMfile()

September 20, 2014
By
Using the Debug Option in readDICOMfile()

Some recent activity in stackoverflow was brought to my attention.  Specifically, several questions were raised with reading files into R using readDICOMFile() in the oro.dicom package. The questions did highlight some inadequacies in the code, an...

Read more »

Webinar September 25: Data Science with R

September 19, 2014
By

A quick heads up that if you'd like to get a great introduction to doing data science with the R language, Joe Rickert will be giving a free webinar next Thursday, September 25: Data Science with R. Regular readers of the blog will be familiar with Joe's posts on this topic. A few recent examples include posts on comparing...

Read more »

Sponsors

Mango solutions



RStudio homepage



Zero Inflated Models and Generalized Linear Mixed Models with R

Dommino data lab

Quantide: statistical consulting and training



http://www.eoda.de







ODSC

ODSC

CRC R books series





Six Sigma Online Training





Contact us if you wish to help support R-bloggers, and place your banner here.

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)