6 Replies Latest reply on Dec 1, 2016 12:52 AM by Tulu Sahoo

    Calculations

    Tulu Sahoo
    Tulu Sahoo Nov 30, 2016 4:50 AM

      I want to search Null values in every rows, once got one null values then i want to replace null values from that value onwards

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      • Categories: Calculations
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        • 1. Re: Calculations
          Tom W
          Tom W Ambassador Nov 30, 2016 4:53 AM (in response to Tulu Sahoo)

          Hi Tulu,

          You could create a calculation like IF [MyField] is null then 1 else [MyField] END.

           

          If this doesn't solve your problem please upload a Tableau Packaged Workbook including some sample data and provide more detail around what you're trying to calculate.

          • 2. Re: Calculations
            Tulu Sahoo
            Tulu Sahoo Nov 30, 2016 4:56 AM (in response to Tulu Sahoo)

            Sorry Friend, It is not working.

            • 3. Re: Calculations
              Tulu Sahoo
              Tulu Sahoo Nov 30, 2016 5:03 AM (in response to Tom W)

              Hi Tom,

               

              That is my data, PFB my expected result:

               

              For Example :For region Central 2016 value is Null so I want whole the row of central region should be replace to Null.

              2nd Example: West region 2015 value is Null so that value onwards want to replace Null.

              • 4. Re: Calculations
                Tom W
                Tom W Ambassador Nov 30, 2016 5:16 AM (in response to Tulu Sahoo)

                Create a calculated field to determine the maximum blank period. MaxBlank= {FIXED Region : MAX(IF ZN([Sales]) = 0 then Year END )}

                This field uses a Level of Detail calculation.

                 

                 

                Then setup a field to determine the sales based on the MaxBlank item. IfSales=SUM(IF Year>=[MaxBlank] then [Sales] end)

                Use this field in your report.

                • 5. Re: Calculations
                  Tulu Sahoo
                  Tulu Sahoo Nov 30, 2016 11:08 PM (in response to Tom W)

                  Hi Tom,

                   

                  Thanks for your reply, By using these calculations all the values are coming blank.

                  Kindly provide some other solution.

                  Tom----> We have to create one calculated field which will scan every row for the Null, once it will get , from that position onwards till last will be replace as null but behind that position values should keep as previous value.

                  Thanks.

                  • 6. Re: Calculations
                    Tulu Sahoo
                    Tulu Sahoo Dec 1, 2016 12:52 AM (in response to Tulu Sahoo)

                    Hi Friends,

                     

                    I have developed one workaround solution for my problem. You can use below calculations to achieved this solution.

                     

                    IF INDEX()>WINDOW_MIN(if isnull([Measure]) then INDEX()) then Null else [Measure] end

                     

                    Thanks for your support.

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