DATA MINING Desktop Survival Guide by Graham Williams
Desktop Survival Project Home List of Figures List of Tables Data Mining Data Mining Data Mining with Rattle Introduction Data Transform Explore A Model Building Framework Unsupervised Modelling Two Class Models Multi Class Models Regression Models Text Mining Evaluation and Deployment Moving into R Troubleshooting R for the Data Miner R Data Graphics in R Understanding Data Preparing Data Building Models Evaluating Models Algorithms Apriori Bagging Bayes Classifier Boosting Cluster Analysis Conditional Trees Hierarchical Clustering K-Means K-Nearest Neighbours Linear Models Logistic Regression Neural Networks Support Vector Machines Text Mining Open Products AlphaMiner Borgelt Data Mining Suite KNime R Rattle Weka Closed Products C4.5 Clementine Equbits Foresight GhostMiner InductionEngine ODM Enterprise Miner Statistica Data Miner TreeNet Virtual Predict Appendicies Glossary Bibliography Index

Screen Devices

A new graphics device is created with any one of x11, windows, and quartz. Once a graphics device is opened, all further graphics commands relate to that device, until it is closed with the dev.off function. The graphics.off function closes all devices.

> x11()
> plot(rnorm(50))
> x11()
> plot(rnorm(10))
> dev.off()
X11
  2
> dev.off()
null device
          1

On screen devices you can sometimes print the plots directly from the right mouse button menu (depending on the operating system and the GUI). Once you have a plot drawn on a screen device you can always save the current plot to PDF with:

dev.print(pdf, file="rplot.pdf")

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