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開課地址:【上海】同濟大學(滬西)/新城金郡商務樓(11號線白銀路站)【深圳分部】:電影大廈(地鐵一號線大劇院站) 【武漢分部】:佳源大廈【成都分部】:領館區1號【沈陽分部】:沈陽理工大學【鄭州分部】:錦華大廈【石家莊分部】:瑞景大廈【北京分部】:北京中山學院 【南京分部】:金港大廈
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質量保障 |
1、培訓過程中,如有部分內容理解不透或消化不好,可免費在以后培訓班中重聽;
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課程大綱 |
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- Basic overview of R and R Studio
R overview
R Studio Environment Windows
Script Editor Window
Data Environment
Console
Plots/Help/Packages
Working with Data
Introduction to vectors and matrices (data.frame)
Different types of variables
Numeric, Integer, factor etc
Changing variable types
Importing data using R Studio menu functions
Removing variables ls() command
Creating variables at the console prompt – single, vector, data frame
Naming vectors and matrices
Head and tail commands
Introduction to dim, length and class
Command line import (reading .csv and tab delimited .txt files)
Attaching and detaching data (advantages vs data.frame$)
Merging data using cbind and rbind
Exploratory Data Analysis
Summarising data
Summary command on both vectors and data frames
Sub-setting data using square brackets
summarising and creating new variables
Table and summary commands
Summary statistic commands
Mean
Median
Standard Deviation
Variance
Count & frequencies
Min & Max,
Quartiles
Percentiles
Correlation
Exporting data
Write table .txt
Write to a .csv file
R Workspace
Concept of Working Directories and Projects (menu driven and code – setwd())
Introduction to R scripts
Creating R Scripts
Saving scripts
Workspace images
Concepts of packages
Installing packages
Loading packages into memory
Plotting data (using standard default R plot command and ggplot2 package)
Bar Charts and Histograms
Boxplots
Line charts / time series
Scatter plots
Stem and leaf
Mosaic
Modifying plots
Titles
Legends
Axis
Plot Area
Exporting a plot to a third party application
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