2352 search results for "Time Series"

Installing the additional R packages in Oracle Big Data Lite VM 4.5.0

Oracle has just released version 4.5.0 of the Big Data Lite VM which, when it comes to R, still suffers from the issues we had pinpointed for the previous version 4.4.0 (and then some). The first attempt to install the additional packages fails with a ‘cannot open URL’ error: Fortunately, the warning about the proxy helps to locate the...

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Rcpp 0.12.6: Rolling on

July 19, 2016
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The sixth update in the 0.12.* series of Rcpp has arrived on the CRAN network for GNU R a few hours ago, and was just pushed to Debian. This 0.12.6 release follows the 0.12.0 release from late July, the 0.12.1 release in September, the 0.12.2 release in November, the 0.12.3 release...

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Data frame columns as arguments to dplyr functions

July 17, 2016
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Suppose that you would like to create a function which does a series of computations on a data frame. You would like to pass a column as this function’s argument. Something like: data(cars) convertToKmh <- function(dataset, col_name){ dataset$col_name <- dataset$speed * 1.609344 return(dataset) } This example is obviously not very interesting (you don’t need a function for this), but it...

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Finish line (nearly)

July 15, 2016
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Finish line (nearly)

We are very close to the finish line $-$ that's being able to finally submit the BCEA book to the editor (Springer).This has been a rather long journey, but I think the current version (I dread using the word "final" just yet...) is very good, I think....

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vtreat version 0.5.26 released on CRAN

July 12, 2016
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Win-Vector LLC, Nina Zumel and I are pleased to announce that ‘vtreat’ version 0.5.26 has been released on CRAN. ‘vtreat’ is a data.frame processor/conditioner that prepares real-world data for predictive modeling in a statistically sound manner. (from the package documentation) ‘vtreat’ is an R package that incorporates a number of transforms and simulated out of … Continue reading...

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Text Mining with R on Vikings episode scripts

July 6, 2016
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Text Mining with R on Vikings episode scripts

Synopsis I'm a hugh fan of the TV show Vikings. I thought it would be cool to mine the tv shows scripts to figure out which terms are the most The post Text Mining with R on Vikings episode scripts appeared first on Networkx.

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Using Microsoft R Server and dplyrxdf to Predict Flight Arrival Delays

July 5, 2016
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Using Microsoft R Server and dplyrxdf  to Predict Flight Arrival Delays

by Konstantin Golyaev, Data Scientist at Microsoft I recently participated in an internal one-day Microsoft R Server (MRS) hackathon. For an experienced base R user but a complete MRS novice, this turned out to be an interesting challenge. R has fantastic and unparalleled set of tools for exploratory data analysis, as long as your data set is small enough...

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Visualizing Stirling’s Approximation With Highcharts

July 5, 2016
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Visualizing Stirling’s Approximation With Highcharts

I said, “Wait a minute, Chester, you know I’m a peaceful man”, He said, “That’s okay, boy, won’t you feed him when you can” (The Weight, The Band) It is quite easy to calculate the probability of obtaining the same number of heads and tails when tossing a coin N times, and N is even. There are … Continue reading...

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Loading Data with Pandas

June 27, 2016
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Loading Data with Pandas

On at least a couple of occasions lately, I realized that I may need Python in the near future. While I have amassed some limited experience with the language over the years, I never spent the time to understand Pandas, its de-facto standard data-frame library. Where does one start? For me its usually with the The post

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R for Publication by Page Piccinini: Lesson 6, Part 1 – Linear Mixed Effects Models

June 26, 2016
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R for Publication by Page Piccinini: Lesson 6, Part 1 – Linear Mixed Effects Models

In today’s lesson we’ll learn about linear mixed effects models (LMEM), which give us the power to account for multiple types of effects in a single model. This is Part 1 of a two part lesson. I’ll be taking for granted some of the set-up steps from Lesson 1, so if you haven’t done that Lesson 6, Part...

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