1834 search results for "tutorial"

Five Reasons to Teach Elementary Statistics With R: #3

May 4, 2014
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Five Reasons to Teach Elementary Statistics With R:  #3

Introduction Reason #3: RStudio’s shiny Examples “Slow” Simulation Understanding Model Assumptions Types of Error Illustrating Fine Points Playing Games

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Five Reasons to Teach Elementary Statistics With R: #3

May 4, 2014
By
Five Reasons to Teach Elementary Statistics With R:  #3

Introduction Reason #3: RStudio’s shiny Examples “Slow” Simulation Understanding Model Assumptions Types of Error Illustrating Fine Points Playing Games

Read more »

“The Winner Takes It All” – Tuning and Validating R Recommendation Models Inside Tableau

May 4, 2014
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“The Winner Takes It All” – Tuning and Validating R Recommendation Models Inside Tableau

Introduction My last blog article shows how to build an interactive recommendation engine in Tableau using a simple model utilizing the cosine similarity measure. While this can be a good way to explore unknown data, it is wise to validate any model before...

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Writing an R package from scratch

April 29, 2014
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Writing an R package from scratch

As I have worked on various projects at Etsy, I have accumulated a suite of functions that help me quickly produce tables and charts that I find useful. Because of the nature of iterative development, it often happens that I … Continue reading →

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The new look of learning R

April 28, 2014
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The new look of learning R

Now that we have reached the milestone of 30,000 (!) enthusiastic R students, and the DataCamp platform is paving its way into academics and professional organizations, we felt it was time to take our design to a higher level. So as of this week, your favourite free learning platform for R tutorials and data science will have a totally new look and feel!

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Singleton Remover CSV v0.3

April 21, 2014
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Singleton Remover CSV v0.3

I created a small program called Singleton Remover CSV to help researchers process files quickly that might otherwise take a long time to be handled by hand. The program simply compares ID values given in the first two columns of a .csv file, saves any...

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Free interactive R exercises on OpenIntro

April 21, 2014
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Free interactive R exercises on OpenIntro

DataCamp first to offer free interactive R tutorials via the OpenIntro platform. In one week, the ten-week Coursera course on Data Analysis and Statistical Inference by prof. Mine Çetinkaya-Rundel of Duke University comes to an end. At DataCamp it was one of our first experiences providing interactive R exercises on a large scale, and we’re proud to say

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Checking (G)LM model assumptions in R

April 16, 2014
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Checking (G)LM model assumptions in R

(Generalized) Linear models make some strong assumptions concerning the data structure: Independance of each data points Correct distribution of the residuals Correct specification of the variance structure Linear relationship between the response and the linear predictor For simple lm 2-4) means that the residuals should be normally distributed, the variance should be homogenous across the

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WrightMap 1.1 Ancillary Antelope Released

April 12, 2014
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WrightMap 1.1 Ancillary Antelope Released

The new version of WrightMap (Ancillary Antelope) is now available on CRAN. Remember that you can visit the package tutorials on our website. This new version includes: - New function to create fit graphs like the example below. - Parameter conversion: Function for calculating Thurstonian thresholds from Master’s deltas. - New examples. - Added axis range controls. - Made histogram...

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WrightMap 1.1 Ancillary Antelope Released

April 12, 2014
By
WrightMap 1.1 Ancillary Antelope Released

The new version of WrightMap (Ancillary Antelope) is now available on CRAN. Remember that you can visit the package tutorials on our website. This new version includes: New function to create fit graphs like the example below. Parameter conversion: Function for calculating Thurstonian thresholds from Master’s deltas. New examples. Added axis...

Read more »

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