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# PU5058 Introduction to Health Data Science, Exercise 1
# Date: 21/09/26
# Created by: Professor Plum


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help(mean)          # different methods of using help
?mean
help("mean")


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plot(1:10)    # dont worry about what 1:10 does just yet


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first_num <- 42    # create variable first_num and assign the value 42
first_char <- "my first character"


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rm(first_num)
ls()          # list all variables in the workspace 


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first_char <- "my second character"
first_char    # display the value 


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apropos("plot")
help('plot.design')


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help.search("plot")
??plot     # shortcut for help.search function

help.search("plot", package = "nlme")


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getwd()    # displays the current working directory 


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list.files(include.dirs = TRUE)