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            Introduction to R with Time Series Analysis培訓

             
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            最近開課時間(周末班/連續班/晚班):2019年1月26日
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            課程大綱
             

            Introduction and preliminaries

            Making R more friendly, R and available GUIs
            Rstudio
            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
            Arrays and matrices

            Arrays
            Array indexing. Subsections of an array
            Index matrices
            The array() function
            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
            Data manipulation

            Selecting, subsetting observations and variables
            Filtering, grouping
            Recoding, transformations
            Aggregation, combining data sets
            Character manipulation, stringr package
            Reading data

            Txt files
            CSV files
            XLS, XLSX files
            SPSS, SAS, Stata,… and other formats data
            Exporting data to txt, csv and other formats
            Accessing data from databases using SQL language
            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
            Graphical procedures

            High-level plotting commands
            The plot() function
            Displaying multivariate data
            Display graphics
            Arguments to high-level plotting functions
            Basic visualisation graphs
            Multivariate relations with lattice and ggplot package
            Using graphics parameters
            Graphics parameters list
            Time series Forecasting

            Seasonal adjustment
            Moving average
            Exponential smoothing
            Extrapolation
            Linear prediction
            Trend estimation
            Stationarity and ARIMA modelling
            Econometric methods (casual methods)

            Regression analysis
            Multiple linear regression
            Multiple non-linear regression
            Regression validation
            Forecasting from regression

             
              備案號:備案號:滬ICP備08026168號-1 .(2024年07月24日)...............
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