Scatter plots in MATLAB - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a scatter plot in MATLAB?

A scatter plot in MATLAB is a graph that shows points representing pairs of values, usually to see the relationship between two sets of data.

beginner

How do you create a basic scatter plot in MATLAB?

Use the function scatter(x, y) where x and y are vectors of the same length representing coordinates of points.

intermediate

How can you change the color and size of points in a MATLAB scatter plot?

You can add extra arguments to scatter(x, y, size, color) where size controls the marker size and color controls the color of the points.

intermediate

What does the command scatter(x, y, 100, 'r', 'filled') do?

It creates a scatter plot with points at coordinates x and y, each point sized 100, colored red ('r'), and filled solidly.

beginner

How do you add labels and a title to a scatter plot in MATLAB?

Use xlabel('label'), ylabel('label'), and title('title text') to add labels to the x-axis, y-axis, and a title to the plot.

Which MATLAB function is used to create a scatter plot?

A scatter

B plot

C bar

D histogram

The scatter function is specifically designed for scatter plots.

What does the third argument in scatter(x, y, size) control?

A Shape of points

B Color of points

C Size of points

D Transparency of points

The third argument sets the size of each marker in the scatter plot.

How do you make points solid filled in a scatter plot?

A Use <code>fill</code> function

B Add 'filled' as an argument

C Set size to zero

D Use <code>plot</code> instead

Adding the string 'filled' fills the markers solidly.

If you want red points in your scatter plot, which color code should you use?

A 'b'

B 'k'

C 'g'

D 'r'

In MATLAB, 'r' stands for red color.

Which command adds a title to a MATLAB scatter plot?

A title

B ylabel

C xlabel

D legend

The title function adds a title to the plot.

Explain how to create a basic scatter plot in MATLAB and customize the color and size of the points.

Think about the order of arguments in the scatter function.

Describe how to add labels and a title to a scatter plot in MATLAB and why these are important.

Labels help explain what the axes and plot represent.