I have a data full of labels. I want to plot on the X-axis, the labels. And the number of times each label occurred on the Y-axis. How to do this in Libre Office calc?

Sample Data
a
a
a
b
b
b
b
b
z
z
z
z

It’s simple, fast and easy to do with the PivotTable:

Count Labels.gif

To create a pivot table, I used the option from the insert column: insert->pivot table…