Posts Tagged ‘ Classification ’

plotting raster data in R: adjusting the labels and colors of a classified raster

August 2, 2012
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plotting raster data in R: adjusting the labels and colors of a classified raster

Thank’s to Andrej who wrote this comment: “Is it possible to to color the resulting 12 clusters within your original image to get a feel for visual separation?” You can do so: But how to get values at a location? You will need these values to determine whether the defined class is representing a water

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Classification Trees using the rpart function

September 21, 2010
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Classification Trees using the rpart function

In a previous post on classification trees we considered using the tree package to fit a classification tree to data divided into known classes. In this post we will look at the alternative function rpart that is available within the base R distribution. Fast Tube by Casper A classification tree can be fitted using the rpart function

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Classification Trees

September 18, 2010
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Classification Trees

Decision trees are applied to situation where data is divided into groups rather than investigating a numerical response and its relationship to a set of descriptor variables. There are various implementations of classification trees in R and the some commonly used functions are rpart and tree. Fast Tube by Casper To illustrate the use of the tree

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Social Media Analytics Research Toolkit (SMART@znmeb) Is Moving Into Private Beta

March 31, 2010
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Download "Getting Started with the Social Media Analytics Research Toolkit" (pdf, 1.25 megabytes) Download the Social Media Analytics Research Toolkit My Social Media Analytics Research Toolkit is about to move into private beta. What's in the release?...

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Data Visualization and R Programming Books (Updated)

January 7, 2010
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Download "Getting Started with the Social Media Analytics Research Toolkit" (pdf, 1.25 megabytes) Download the Social Media Analytics Research Toolkit Download Code Like A Pirate - The #rstats Appliance from the SUSE Gallery Disclosure As you probably ...

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