1343 search results for "how to import image file to R"

floweR

June 2, 2014
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floweR

It is the time you have wasted for your rose that makes your rose so important (Antoine de Saint-Exupéry, The Little Prince) Yesterday I found a package called circular and I could not suppress to do this: Make your own floweRs:

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Analyzing the 2011-2012 California Health Inteview Survey with R

June 1, 2014
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Analyzing the 2011-2012 California Health Inteview Survey with R

The California Health Interview Survey (CHIS) is a remarkable biannual survey of health status, care access, and demographics for California residents. The 2011-2012 public use survey data has recently been released and is freely available after registering at the CHIS site. CHIS currently offers data in SAS, Stata, and SPSS formats. However, thanks to a...

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Retrospective: Writing an O’Reilly Book

May 31, 2014
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Retrospective: Writing an O’Reilly Book

A number of people have asked me about the amount of time and effort involved in writing a book as I just completed one for O'Reilly (published in April and is available on Amazon).   The process at O'Reilly is unique in that a book is written and initially formatted on an application called...

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Visualizing asylum statistics

May 30, 2014
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Visualizing asylum statistics

Note: of potential interest to R users for the dynamic Google chart generated via googleVis in R and discussed towards the end of the post. Here you can go directly to the graph. An emergency refugee center, opened in September … Continue reading →

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Visualize Your Foursquare Check-ins with R

May 29, 2014
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Visualize Your Foursquare Check-ins with R

You can use this tutorial in the ThinkToStartR package with: token <-ThinkToStart(“Foursquare_auth”,app_name=”R_Test”,app_id=”XXX”,app_secret=”XXX”) map <- ThinkToStart(“Foursquare_map”,token) Hey R-Fans! You sure all heard of Foursquare. It has more than 45 million users but it´s potential is not recognized by much people. So today I want to show you how easy it is to get your check-in history and visualize …

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How Do Cities Feel?

May 27, 2014
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How Do Cities Feel?

If you are lost and feel alone, circumnavigate the globe (For You, Coldplay) You can not consider yourself a R-blogger until you do an analysis of Twitter using twitteR package. Everybody knows it. So here I go. Inspired by the fabulous work of Jonathan Harris I decided to compare human emotions of people living (or

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Towards (Yet) Another R Colour Palette Generator. Step One: Quentin Tarantino.

May 27, 2014
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Towards (Yet) Another R Colour Palette Generator. Step One: Quentin Tarantino.

Why?I love colours, I love using colours even more. Unfortunately, I have to admit that I don't understand colours well enough to use them properly. It is the same frustration that I had about one year ago when I first realised that I couldn't plot anything better than the defaults in Excel and Matlab! It...

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Sunsets in Google Calendar using R

May 26, 2014
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Sunsets in Google Calendar using R

I live (and work!) near one of the most beautiful vantage points for sunsets in possibly the entire US. However almost every beautiful sunset I have seen from there has come from either 1) me walking out of work and … Continue reading →

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Celebrity twitter followers by gender

May 25, 2014
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Celebrity twitter followers by gender

The most popular accounts on twitter have millions of followers, but what are their demographics like? Twitter doesn’t collect or release this kind of information, and even things like name and location are only voluntarily added to people’s profiles. Unlike Google+ … Continue reading →

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Regularization implementation in R : Bais and Variance diagnosis

May 22, 2014
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Regularization implementation in R : Bais and Variance diagnosis

Welcome to this blog post. In previous posts I discussed about the linear regression and logistic regression in detail. We used Andrew NG’s ML class dataset to fit linear regression and logistic regression. We also discussed about step by step implementation in R along with cost function and gradient descent. In this post I will The post Regularization...

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