How do you read a mosaic plot?

How do you read a mosaic plot?

A mosaic plot is a square subdivided into rectangular tiles the area of which represents the conditional relative frequency for a cell in the contingency table. Each tile is colored to show the deviation from the expected frequency (residual) from a Pearson X² or Likelihood Ratio G² test.

What does the width of a mosaic plot mean?

A mosaic plot is a graphical display that allows you to examine the relationship among two or more categorical variables. The square is divided first into horizontal bars whose widths are proportional to the probabilities associated with the first categorical variable.

How do you know if a mosaic plot is independent?

Independence. It is usually easy to tell from a mosaic plot whether the two variables are independent. When they are independent, all proportions are the same and so the boxes line up in a grid.

How do you make a mosaic plot in R?

R Mosaic Plot Syntax

1. data: Please specify the DataFrame or List that contains the data to draw a mosaic plot.
2. subset: You can restrict the Mosaic plot to draw some data by specifying the vector of values.
3. x: Please specify the data from which you want to draw the mosaic plot.
4. sort: Ordering the vector variables.

What is Mosaic or Mekko charts?

A mosaic plot (also known as a Marimekko diagram) is a graphical method for visualizing data from two or more qualitative variables. Mosaic plots are also called Mekko charts due to their resemblance to a Marimekko chart.

How do you change the color of a mosaic plot?

Click on the red triangle next to Contingency Table to select or deselect display options. Right click on the mosaic plot to change colors (Set Colors) or label cells (Cell Labeling).

What is a mosaic plot used for?

How are mosaic plots used? Mosaic plots are used to show relationships and to provide a visual comparison of groups.

What is a mosaic plot good for?

Mosaic plots help show relationships and give a visual way to compare groups.

How is a mosaic plot used in DataScience?

Mosaic plot is a graphical representation of two way contingency table which pictographically represents the relationship among two or more categorical variables. Plot is divided into rectangles.

How to assign names to Mosaic Plot in R?

In this R Mosaic plot example, we assign names to mosaic plot title, X-Axis, and Y-Axis using main, xlab, ylab, and sub. main: You can change or provide the character string for the Mosaic Plot Title.

How to make a mosaic plot in VCD?

I’m using the mosaic and assoc functions in the library vcd. My mosaic plot is as follows: Here, Gender 1 = female, 2 = male; Alcohol 1 = yes, 2 = no; Cigarette 1 = yes, 2 = no.

Can a mosaic plot be used as a contingency table?

Mosaic plots provide a way to visualize contingency tables. However they’re not as intuitive as, say, a scatter plot. It’s hard to mentally map a contingency table of raw counts to what you’re seeing in a mosiac plot.