332 search results for "boxplot"

R Tutorial: Add confidence intervals to dotchart

May 15, 2011
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R Tutorial:  Add confidence intervals to dotchart

Recently I was working on a data visualization project.  I wanted to visualize summary statistics by category of the data.  Specifically I wanted to see a simple dispersion of data with confidence intervals for each category of data. R i...

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Review of 2011 Data Scientist Summit

May 13, 2011
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Review of 2011 Data Scientist Summit

Some time over the past 6 weeks I randomly saw a tweet announcing the “Data Scientist Summit” and shortly below it I saw that it would be held in Las Vegas at the Venetian. Being a Data Scientist myself is reason enough to not pass up this opportunity, but Vegas definitely sweetens the deal! On Wednesday I woke up...

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Cuckoo eggs

May 6, 2011
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Cuckoo eggs

In Tangente n⁰42, there was a dataset about the size of cuckoo eggs against the species (goldcrest and warbler) which built the nest. (The whole dataset from Latter is analysed in Maindonald and Braun’s Data Analysis and Graphics Using R, with a degree of caution about how trustworthy this data is…) This is

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Oscar awards: good actor versus good actress

May 2, 2011
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Oscar awards: good actor versus good actress

I am not a big fan of those ceremonies, where some actors pretend that they are extremely happy to be there, and then some win a trophy, some don't, and those who win start to cry, and those who did not get a trophy try to pretend that they are not...

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Further Adventures in Visualisation with ggplot2

April 25, 2011
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Further Adventures in Visualisation with ggplot2

So I previously took a look at some data of player performance from a computer game. In this post, I’m going to do some further visualisations using ggplot2. The data consists of different types of player character, different roles for those characters, and their overall damage output (the unit here is damage per second, or

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Box Plot with ggplot2

April 12, 2011
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Box Plot with ggplot2

Hi,in these days I'm creating lots and lots of box plot with ggplot2.The look of them is really good and you can change every bit of code so that you can customize the plot completely.Here is the code I'm using with a test data file to try it:BoxPlot.z...

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Box Plot with ggplot2

April 12, 2011
By
Box Plot with ggplot2

Hi,in these days I'm creating lots and lots of box plot with ggplot2.The look of them is really good and you can change every bit of code so that you can customize the plot completely.Here is the code I'm using with a test data file to try it:BoxPlot.z...

Read more »

Historical Sources of Bond Returns with Shiller Data 1919-2011

April 11, 2011
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Historical Sources of Bond Returns with Shiller Data 1919-2011

And as usual, I always want a longer data set, so after a little playing with R-Excel, we can extend our historical sources of bond returns to 1919.  If nothing else, maybe you can find other uses for the Shiller Dataset in R. From TimelyPort...

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Maps of solar radiation

Maps of solar radiation

The Atmospheric Science Data Center (ASDC) at NASA Langley Research Center offers several data sources. For example, it is possible to download a text file with the 22-year (July 1983 – June 2005) monthly and annual average of global horizontal irradiation. nasafile <- 'http://eosweb.larc.nasa.gov/sse/global/text/global_radiation' nasa <- read.table(file=nasafile, skip=13, header=TRUE) With this data, R and the

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Bond Market as a Casino Game Part 1

April 1, 2011
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Bond Market as a Casino Game Part 1

With this post, I am doing something I try very hard to avoid, especially when communicating to my clients, and that is blurring the line between investing and gambling.  But after reading all of Reuven Brenner’s books and finishing Ralph Vince ...

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