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            Introduction to R培訓

             
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            課程大綱
             

            Introduction and preliminaries
            Making R more friendly, R and available GUIs
            The R environment
            Related software and documentation
            R and statistics
            Using R interactively
            An introductory session
            Getting help with functions and features
            R commands, case sensitivity, etc.
            Recall and correction of previous commands
            Executing commands from or diverting output to a file
            Data permanency and removing objects
            Simple manipulations; numbers and vectors
            Vectors and assignment
            Vector arithmetic
            Generating regular sequences
            Logical vectors
            Missing values
            Character vectors
            Index vectors; selecting and modifying subsets of a data set
            Other types of objects
            Objects, their modes and attributes
            Intrinsic attributes: mode and length
            Changing the length of an object
            Getting and setting attributes
            The class of an object
            Ordered and unordered factors
            A specific example
            The function tapply() and ragged arrays
            Ordered factors
            Arrays and matrices
            Arrays
            Array indexing. Subsections of an array
            Index matrices
            The array() function
            Mixed vector and array arithmetic. The recycling rule
            The outer product of two arrays
            Generalized transpose of an array
            Matrix facilities
            Matrix multiplication
            Linear equations and inversion
            Eigenvalues and eigenvectors
            Singular value decomposition and determinants
            Least squares fitting and the QR decomposition
            Forming partitioned matrices, cbind() and rbind()
            The concatenation function, (), with arrays
            Frequency tables from factors
            Lists and data frames
            Lists
            Constructing and modifying lists
            Concatenating lists
            Data frames
            Making data frames
            attach() and detach()
            Working with data frames
            Attaching arbitrary lists
            Managing the search path
            Reading data from files
            The read.table()function
            The scan() function
            Accessing builtin datasets
            Loading data from other R packages
            Editing data
            Probability distributions
            R as a set of statistical tables
            Examining the distribution of a set of data
            One- and two-sample tests
            Grouping, loops and conditional execution
            Grouped expressions
            Control statements
            Conditional execution: if statements
            Repetitive execution: for loops, repeat and while
            Writing your own functions
            Simple examples
            Defining new binary operators
            Named arguments and defaults
            The '...' argument
            Assignments within functions
            More advanced examples
            Efficiency factors in block designs
            Dropping all names in a printed array
            Recursive numerical integration
            Scope
            Customizing the environment
            Classes, generic functions and object orientation
            Statistical models in R
            Defining statistical models; formulae
            Contrasts
            Linear models
            Generic functions for extracting model information
            Analysis of variance and model comparison
            ANOVA tables
            Updating fitted models
            Generalized linear models
            Families
            The glm() function
            Nonlinear least squares and maximum likelihood models
            Least squares
            Maximum likelihood
            Some non-standard models
            Graphical procedures
            High-level plotting commands
            The plot() function
            Displaying multivariate data
            Display graphics
            Arguments to high-level plotting functions
            Low-level plotting commands
            Mathematical annotation
            Hershey vector fonts
            Interacting with graphics
            Using graphics parameters
            Permanent changes: The par() function
            Temporary changes: Arguments to graphics functions
            Graphics parameters list
            Graphical elements
            Axes and tick marks
            Figure margins
            Multiple figure environment
            Device drivers
            PostScript diagrams for typeset documents
            Multiple graphics devices
            Dynamic graphics
            Packages
            Standard packages
            Contributed packages and CRAN
            Namespaces

             
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