My R Language Notes

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Name Column

# dataframe df headers<-c("DateOccurred","DateReported","Location", "ShortDescription","Duration","LongDescription") names(df)<-headers

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Drop Column

#dataframe df headers<-c("column1","column2","column3") head(df[, !names(ufo) %in% headers[2]])

http://stackoverflow.com/questions/12868581/list-all-column-except-for-one-in-r

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Delete Libraries

remove.packages("<package name>")

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Installed Libraries (list of installed libraries)

List

installed.packages()

Finding out of a specific library is installed:

a<-installed.packages() packages<-a[,1] is.element("boot", packages) [1] TRUE

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Installing Libraries

In R console:

install.packages("library_name_here")