Introductory Slides for R - Statistics

More documents

Recommendations

Info

Functions and Local Variables> x[1] 1 2 3 4 5> squarefunction (x){x square()Error in square() : argument "x" is missing, with no default> square(x=x)[1] 1 4 9 16 25> x[1] 1 2 3 4 5the right x in square(x=x)comes from workspace, the left x is local to the function.Note that the workspace x is unchanged.27
Using the NotePad or WordPad EditorsUsing NotePad or WordPad (or any other straight text editor) you can also edit afile to contain the function bodyfunction(...){...}Save the file as straight text without any <strong>for</strong>matting (suffix .txt not .rtf).Then import that function into your workspace via the R commandfun.1
Page 1 and 2: STAT 311Elements of Statistical Met
Page 3 and 4: Statistical Analysis PlatformFreely
Page 5 and 6: Workspaces and DirectoriesBy defaul
Page 7 and 8: Help in RIf you know the name of a
Page 9 and 10: Median ValueDescriptionCompute the
Page 11 and 12: Basic Usage of RWe can use R as an
Page 13 and 14: Functions Creating Vectors> 1:10[1]
Page 15 and 16: Data ModesWe saw that vectors can b
Page 17 and 18: Mode CoercionMixed mode elements in
Page 19 and 20: Matrices> mat mat # vertically pos
Page 21 and 22: Submatrices of Matrices> mat[1:3,1:
Page 23 and 24: Matrices via rbind> rmat rmat[,1]
Page 25 and 26: Custom FunctionsR can be extended b
Page 27: Another Way to Construct FunctionsW
Page 31 and 32: Saving Objects outside the R Worksp
Page 33 and 34: Getting Data into R from ExcelGetti
Page 35 and 36: ListsLists allow more general forms
Page 37 and 38: Lists with Named Objects> b.list b
Page 39 and 40: Programming Control Tools: for loop
Page 41 and 42: Graphics in RSome people use R just
Page 43 and 44: Simple Command Line Graphics> hist(
Page 45 and 46: Text Annotated Graphicshist.rainier
Page 47 and 48: Math Annotated Graphicsplot.fun
Page 49 and 50: PackagesAside from your own extensi

Introductory Slides for R - Statistics

Create successful ePaper yourself

Delete template?

Save as template?