Robert BreenMay 10, 20211 min readTableau: Control Date Level with Parameters (Year, Month, Quarter)Updated: May 13, 2021Step 1:Build a dual axis chart using [Date], [Quantity], and [Sales]. The result will be a combined bar and line chart.Step 2:Create a string parameter with these options. year, quarter, month. Make sure they are not capitalized. You can set an alias with a capital letter for display purposes. Step 3:Create this calculated field to serve as the date that is controlled by the parameter.