In a cross or a contingency table you can study the coherence/correlation between two of the variables.
After selection of this option you first have to choose a row variable and a column variable for the table. VUstat chooses suitable classes for you if the variable has a large range. You may adjust these later.
Variables
With this button you can select other variables.
Divide
With the Divide-option you can divide the data into subgroups. For example, you can divide a file of students into a group of male students and a group of female students.
There are three ways to present the data in a contingency table:
- separate tables for each subgroup.
- rows for each subgroup
- columns for each subgroup
The last two formats can also show the subtotals of each subgroup.
Classes
There are standard classes, but you can change these for each variable.
Title
With this button you can make a title at the image. This title may make the picture more clear when you make a print.
Chi-square
You can use the chi-squared test to see whether the two variables appear to be independent, provided that the conditions of the test are met
Numbers
The absolute numbers/counts/frequencies and totals
Row percentages
The value of each row is taken as 100%.
Column percentages
The value of each column is taken is 100%.
Total percentages
The total is taken as 100%.
Data divided on a variable
If the data are divided the contingency tables can be displayed in three ways:
Tables separately; Rows divided; Columns divided.
In addition you can display the subtotals.
Pull-down menu
These options are also available from the pull-down menu Contingency table. In the pull-down menu you can turn off the panel on the right-hand side with the menu option Buttons.
Buttons
With the print button you obtain a print option and options to copy the graph to the clipboard, send to Word, or save as file.
Offers help on the item currently being processed.
You leave the active window and return to the previous window.
The graph is immediately pasted into Word.