Blog Archives

Data Mining the California Solar Statistics with R: Part I

April 24, 2015
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Data Mining the California Solar Statistics with R: Part I

Data Mining the California Solar Statistics with R: Part I Intro Today I’m taking a look at the data set available from California Solar Statistics availalbe from https://www.californiasolarstatistics.ca.gov/. This data set lists all the applications for state incentives for both residential and commercial systems, it contains information about the PV (Photovoltaic) system size, location, cost,

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Automatic drug utilization reports with R and ggplot2

September 18, 2012
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Automatic drug utilization reports with R and ggplot2

This program takes a data set of drug utilisation of 4 fictional drugs in 10 fictional hospitals and plots each time-series with a locally weighted regression (Lowess) trend line. It also places an time-series trend of the usage for each … Continue reading →

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R script to manipulate health data

June 3, 2012
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Here is the code that fixed up the World Bank data export for use in Tableau. The databank spits out everything in an untidy format for grouping and aggregating. The reshape2 and plyr packages  make it easy to manipulate the whole set … Continue reading →

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R Tutorial Series: Two-Way ANOVA with Pairwise Comparisons

January 31, 2011
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R Tutorial Series: Two-Way ANOVA with Pairwise Comparisons

By extending our one-way ANOVA procedure, we can test the pairwise comparisons between the levels of several independent variables. This tutorial will demonstrate how to conduct pairwise comparisons in a two-way ANOVA. Tutorial FilesBefore we begin, yo...

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