1841 search results for "ggplot"

Parsing and plotting time series data

January 15, 2011
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Parsing and plotting time series data

This morning I came across a post which discusses the differences between scala, ruby and python when trying to analyse time series data. Essentially, there is a text file consisting of times in the format HH:MM and we want to get an idea of its distribution. Tom discusses how this would be a bit clunky

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Survival paper (update)

January 13, 2011
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Survival paper (update)

In a recent post, I discussed some  statistical consultancy I was involved with. I was quite proud of the nice ggplot2 graphics I had created. The graphs nicely summarised the main points of the paper: I’ve just had the proofs from the journal, and next to the graphs there is the following note: It is

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gnmplot

January 13, 2011
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gnmplot

I'm writing a new package that will create nice publication quality graphics of genome information. It's really an adaptor sitting between the biomaRt and ggplot2 packages. Here is the code so far:## this function integrates 3 steps to creating a g...

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prettyR

January 13, 2011
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I have just remembered a package called 'prettyR' that pretty much does what it says. It makes R code more readable.. so an example from my forthcoming genomeplot package (see forthcoming blog entry): ## this function integrates 3 steps to creat...

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Introducing the Lowry Plot

January 11, 2011
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Introducing the Lowry Plot

Here at the Health and Safety Laboratory* we’re big fans of physiologically-based pharmacokinetic (PBPK) models (say that 10 times fast) for predicting concentrations of chemicals around your body based upon an exposure. These models take the form of a big system of ODEs. Because they contain many equations and consequently many parameters (masses of organs

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just for fun: Recovery.gov data snooping

January 11, 2011
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just for fun: Recovery.gov data snooping

Okay, so this isn't ecology related at all, but I like exploring data sets. So here goes...Propublica has some awesome data sets available at their website: http://www.propublica.org/tools/I played around with their data set on Recovery.gov (see hyperl...

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Seasonal pair trading

January 10, 2011
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Seasonal pair trading

quanttrader.info is a good quantitative repository, where I found an idea about seasonal spreads play. The idea of seasonal pair trading differs from pairs trading in a way, that it doesn’t try to find deviation from the spread’s mean, but it looks at seasonal spread patterns. In some cases it is easier to find an

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My first R package: zipcode

January 5, 2011
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My first R package: zipcode

My first package, zipcode, is now available on CRAN. It contains the CivicSpace database of 43,191 U.S. zip codes.

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Single variable optimization

January 1, 2011
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Optimization means to seek minima or maxima of a funtion within a given defined domain.If a function reach its maxima or minima, the derivative at that point is approaching to 0. If we apply Newton-Raphson method for root finding to f’, we can get the optimizing f.Read More: 223 Words Totally

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Single variable optimization

January 1, 2011
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Optimization means to seek minima or maxima of a funtion within a given defined domain.If a function reach its maxima or minima, the derivative at that point is approaching to 0. If we apply Newton-Raphson method for root finding to f’, we can get the optimizing f.Read More: 223 Words Totally

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