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Published byWilfred Sparks Modified over 8 years ago
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Introduction to CADStat
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CADStat and R R is a powerful and free statistical package [http://www.r-project.org/]
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R capabilities R provides flexible plotting algorithms & libraries for running virtually any statistical analysis… …but R is run at the command line, so there’s a steep learning curve.
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Java GUI for R (JGR) A Graphical User Interface (GUI) has been developed for R, which provides a point-and-click interface for some basic R functions.
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CADStat Point-and-click interfaces for statistical tools useful in causal analysis Rendering of analysis results in browser window Additional help files CADStat adds several tools to JGR:
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To your computers… Launch JGR & set up CADStat add-on.
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Make sure “loaded” & “default” are checked for CADStat. [you should only have to do this step the 1 st time you run CADStat]
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Set Working Directory.
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JGR/CADStat: A gentler introduction to R Installing packages Setting up a workspace Loading data Managing data in your workspace JGR provides point-and-click tools for basic R functions:
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JGR/CADStat: A gentler introduction to R JGR automatically provides help for R commands.
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Load data
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Load data dialog Name of file inside CADStat Delimiter character Is there a header row? Make each field accessible?
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Launch the Object Browser
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Examine structure of objects
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Load 2 nd data file: site classifications
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Merge site classifications with environmental data
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Dataset Merge dialog
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Scatterplots
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Scatterplot dialog
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Scatterplot
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Generate same plot from command line
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Editor dialog Type in the listed command… then highlight it with the mouse…
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…then select from the top menu Edit -> Run Selection Editor dialog
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You can also type commands directly into the console
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Boxplot
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Boxplot dialog
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Boxplot
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Scatterplot matrix
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Correlation & scatterplot matrix dialog
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Scatterplot matrix
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