1326 search results for "rstudio"

JSON serialization now even faster and prettier

April 12, 2015
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JSON serialization now even faster and prettier

The jsonlite package implements a robust, high performance JSON parser and generator for R, optimized for statistical data and the web. This week version 0.9.16 appeared on CRAN which has a new prettifying system, improved performance and some additional tweaks for the new mongolite package. Improved Performance Everyones favorite feature of jsonlite: performance....

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Write an R Journal article with knitr

April 11, 2015
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Write an R Journal article with knitr

R Journal The R Journal publishs peer-reviewed short to medium length articles covering topics that might be of interest to users or developers of R. It is a welcome platform to spread word of new packages. As most academic journals, it has strict guidelines regarding the format of submitted articles. Traditionally, these have been provided with a The post

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New packages for reading data into R — fast

April 10, 2015
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Hadley Wickham and the RStudio team have created some new packages for R, which will be very useful for anyone who needs to read data into R (that is, everyone). The readr package provides functions for reading text data into R, and the readxl package provides functions for reading Excel spreadsheet data into R. Both are much faster than...

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drat 0.0.3: More features, more fixes, more documentation

April 10, 2015
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Several weeks ago we introduced the drat package. Its name stands for drat R Archive Template, and it helps with easy-to-create and easy-to-use repositories for R packages. Two early blog posts describe drat: First Steps Towards Lightweight Repositor...

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sparklines for R

April 10, 2015
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I’ve always liked the jQuery Sparklines library and today I had a use case for implementing these in one of my Rmarkdown reports. While it wouldn’t be too difficult to staticly include a javascript based chart, ideally I would simply want to dynamically generate the sparkline using values computed in R. Luckily we now have htmlwidgets for...

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readr 0.1.0

April 9, 2015
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readr 0.1.0

I’m pleased to announced that readr is now available on CRAN. Readr makes it easy to read many types of tabular data: Delimited files withread_delim(), read_csv(), read_tsv(), and read_csv2(). Fixed width files with read_fwf(), and read_table(). Web log files with read_log(). You can install it by running: install.packages("readr") Compared to the equivalent base functions, readr

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Forecasting the Argentinian “Blue Dollar”

April 9, 2015
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If you have visited recently my website, Bluelytics, you will notice there is a new section named "Predicción", which is a forecast of the value of the Blue Dollar in a 12-month horizon. You can find it at http://bluelytics.com.ar/#/forecast You will find that it has a minimun value and a maximun value for each month, and it's included in...

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A small neuroimage interactive plotter

April 9, 2015
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A small neuroimage interactive plotter

Manipulate Package The manipulate from RStudio allows you to create simple Tcl/Tk operators for interactive visualization. I will use it for a simple slider to view different slices of an image. fslr package I'm calling the fslr package because I know that if you have it installed, you will likely have FSL and have a

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New video course: Campaign Response Testing

April 8, 2015
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New video course: Campaign Response Testing

I am proud to announce a new Win-Vector LLC statistics video course: Campaign Response Testing John Mount, Win-Vector LLC This course works through the very specific statistics problem of trying to estimate the unknown true response rates one or more populations in responding to one or more sales/marketing campaigns or price-points. This is an old … Continue reading...

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matlabr: a Package to Calling MATLAB from R with system

April 8, 2015
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matlabr: a Package to Calling MATLAB from R with system

In my research, I primarily use R, but I try to use existing code if available. In neuroimaging and other areas, that means calling MATLAB code. There are some existing solutions for the problem of R to MATLAB: namely the R.matlab package and the RMatlab package (which can call R from MATLAB as well). I

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