Creating bins/histogram charts on aggregated values in Tableau
Tableau version 9.0 introduced binning values over aggregated data with LOD (Level of Detail) expressions.
To create a histogram over aggregated values:
Assume: Create a histogram using the sum of sales by CustomerID.
Create a calculated field. Name the calculated field as Sales by CustomerID.
Example: {FIXED [CustomerID]: SUM ([Sum Sales])}
Right-click Sales by CustomerID in the data pane and select Create > Bins
Enter the required bin size in the Create Bins dialog box, as shown in the following figure.
Drag Sales by CustomerID (bin) and SUM (Sum Sales) to visualization area.