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Free Online Courses from the Bob Wen
Bob Wen
Bob Wen a PhD in Economics
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Teaching on Alison since Aug 2021
As a PhD graduate in Economics, Bob Wen's research interests are intergenerational studies, microeconomics, and applied econometrics. He has completed all PhD courses with a GPA of 4.0. His paper "The Causal Effect of Growing Up in a Two-Parent Household on Child's Adult Earnings" won the Best Paper Award at Northeast Business and Economics Association (NBEA) 48th Annual Meeting. Bob has used Stata software in his research for over twenty years and started teaching Stata in 2018.

Bob Wen gave presentations on childhood family structure and intergenerational earnings mobility at Southern Economic Association (SEA) Annual Conference, Western Economic Association International (WEAI) Annual Conference, the International Atlantic Economic Society (IAES) Con...
🏆 Top Course by this Course Creator
Introductory Stata: Summary Statistics and Data Management
2,042 Learners already enrolled
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Free Online Courses by Bob Wen
Introductory Stata 2023: Graphics and Data Visualization
1.5-3 hrs 4,628 learners
By Bob Wen
You Will Learn How To

By the end of this course, you will be able to: 

  • Describe the distribution of a continuous variable using histograms, box plots and density plots
  • Analyze the frequency or percentage of a categorical variable using bar charts and pie charts
  • Discuss and visualize the relationship between two continuous variables with scatter plots, bubble plots, line plots and best-fit lines
  • Describe the relationship between two categorical variables with bar charts and pie charts
  • Discuss the relationship between one continuous and one categorical variable and use the ‘over’ or ‘by’ options
  • Define ‘markers’, ‘lines’, ‘axes’, ‘labels’, ‘titles’ and ‘legends’ in terms of Stata graph options
  • Summarize and combine multiple graphs into one graph and save and export them
course logo
CERTIFICATE
Beginner Level
Data Analysis
Introductory Stata 2023: Graphics and Data Visualization
1.5-3 hrs
4628 enrolled
Introductory Stata: Summary Statistics and Data Management
5-6 hrs 2,042 learners
By Bob Wen
You Will Learn How To

By the end of this course, you will be able to:

  • Summarize variables and obtain descriptive statistics, such as the mean, median, maximum, and minimum values
  • Discuss customizing tables for summary statistics using the "tabstat" command
  • Create do-files and log-files
  • Discuss importing data from Excel files with the "import excel" command
  • Analyze the distribution of continuous variables
  • Change the variable's name and values with the "rename" and "replace" commands
  • Create variables from functions with the "egen" command
  • Distinguish between dropping observations and variables
  • Create numeric variables from string variables
  • Combine datasets to add more observations or variables using the "append" and "merge" commands
  • Label variables and values using the "label variable," "label define," and "label values" commands
  • Generate dummy variables from existing continuous and categorical variables with the "recode" and "tabulate" commands
course logo
CERTIFICATE
Beginner Level
Statistics
Introductory Stata: Summary Statistics and Data Management
5-6 hrs
2042 enrolled
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This was an extremely helpful and easy to understand course. Thank you Bob!
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