1. Introduction to Matlab
What is Matlab?
Brief overview, purchasing & installation
Using the Command Window
As a calculator
As a graphing tool
To compute basic statistics
Using the Editor to create scripts and functions
Interactivity: Input/Output
Non-standard statistics and simulation

2. What is Matlab?
Matlab is a statistical analysis, visualization, and scripting language
Used widely in the physical and engineering sciences
Becoming more and more popular in the social sciences

3. What is Matlab?
Matlab is a statistical analysis, visualization, and scripting language
Used widely in the physical and engineering sciences
Becoming more and more popular in the social sciences
Excel?
SPSS?
SASS?
Python?

4. Acquiring Matlab Visit: Matlab is available for purchase:
Professional/academic license: $500 basic package (+$200 for statistics toolbox)
Student license: $50 basic package (+$50 for statistics toolbox)
Licenses are tied to the installation computer (Mac or PC) and do not expire.
Visit:

5. 1. Using the Command Window
As a calculator
Basic operations with scalars, vectors, and matrices
As a graphing tool
Scatter plots, line plots, bar graphs, histograms
To compute standard statistics
Mean, median, mode, quantile, max/min, sorting, and randomization
T-tests, correlation, regression, polynomial fitting, ANOVAs

6. 2. Using the Editor Window
To create scripts:
Save a list of commands
Define iterative operations
To create functions:
Defining input and output variables

7. 3. Interactivity Example 1: Survey questions
Ask user a series of questions (of various formats)
Save data in Matlab, and in Excel
Example 2: Interact with an image
Load and display an image of a face
Ask user to click on the eyes and nose
Save x,y positions of the mouse clicks

8. 4. Nonparametric statistics
Example: Bootstrap analysis
Load a sample data set (heights from before)
Compute the Bootstrap standard error of the mean
Take an n-sample with replacement
Record the mean of the n-sample
Repeat many times
Display the distribution of means

9. 5. Other demos
Face modeling

10. Future workshops
Workshop 2: Matlab Research Tools for Social Scientists
Friday, November 2, 3-5pm, Social Sciences 2, room 121
This workshop I will cover a variety of research tools in Matlab, including designing surveys and behavioral studies, randomizing variables and conditions, collecting user responses (button presses, mouse clicks, reaction times), saving and loading data individual and group data.
Workshop 3. Data Analysis and Plotting in Matlab
Friday, February 1, 3-5pm, Social Sciences 2, room 121
This workshop will cover more advanced examples of data analysis and plotting using Matlab’s statistics toolbox. Statistical tests included t-tests, ANOVA, correlation, and multiple regression. Plotting functions included scatter, line plots, bar graphs, and histograms.
Workshop 4. Visualizing Multivariate Data in Matlab
Friday, February 15, 3-5pm, Social Sciences 2, room 121
In this 2-hour workshop I presented methods for plotting and visualizing multivariate data involving 3 or more variables. These included 3D scatter plots, surface plots, and dynamic displays using Matlab video and graphing tools.

11. Future workshops (cont.)
Workshop 5. Introduction to Matlab (refresher)
Friday, April 12, 3-4pm, Social Sciences 2, room 121
This workshop will cover the basics of Matlab; using the Command Window for defining variables, conducting standard statistical analyses, making 2D plots, and using the Editor to create iterative scripts.
Workshop 6. Nonparametric statistics
Friday, April 26, 3-5pm, Social Sciences 2, room 121
This workshop will introduce nonparametric statistics, including rank-order statistics and the Bootstrap Method, that involve minimal assumptions about the underlying data distributions.
Workshop 7. Computational simulation
Friday, May 10, 3-5pm, Social Sciences 2, room 121
This workshop will introduce the use computational simulations for modeling irregular or non-parametric data. Examples include leave-one-out analyses, Monte Carlo simulation, and iterative parameter searches. .

12. Questions?
Please visit me during my statistical consultation office hours:
Fall quarter: Tuesdays 2-4pm (or by appointment), SS2-377
Winter & Spring: TBA (check )
me:
All workshop materials will be posted at: