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indhu's avatar
indhu
Helper III
8 years ago
Solved

custom column with switch statement

Hi,    I would like to know if there is any way to create a custom column with a switch statement.   Requirement -> I have a date column and wanted to calculate the day of week column with a name...
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  • anithat's avatar
    anithat
    8 years ago

    indhu

     

    Then the Switch statement that you mentioned is working perfect right?

     

    In this case as well, create two columns 

     

    Name of Day

     = SWITCH(
                     WEEKDAY(table[Date],2),         
                     1,"Monday",
                     2,"Tuesday",
                     3,"Wednesday",
                     4,"Thursday",
                     5,"Friday",
                     6,"Saturday",
                     7,"Sunday")

    and 

    Day of Week = WEEKDAY(table[Date],2)

     

    Then use Sort by column option as suggested before.

Phil_Seamark's avatar
Phil_Seamark
Microsoft Employee
8 years ago

Hi indhu

 

You could try this syntax

 

Weekday = FORMAT('Table'[Date],"DDDD")
  • indhu's avatar
    indhu
    Helper III
    8 years ago

    thanks Phil_Seamark. 

     

    Actually, I have a date column and transformed that into a calculated day of the week by following,

    1. Duplicated the column

    2. right click -> transform -> Day -> day of week

     

    after the above step i have this formula in the bar,

     

    = Table.TransformColumns(#"Duplicated Column",{{"timestamp - Copy", Date.DayOfWeek, Int64.Type}}).

     

    If I follow as you suggested, 

     

    = Table.TransformColumns(#"Duplicated Column",format{{"timestamp - Copy", Date.DayOfWeek, Int64.Type,"DDDD"}}).

     

    This doesn't work. I know I am missing something stupid. Can you please help?

     

    I read in a post that custom column is more efficient than a calculated column. So thought I can try that

     

    Thanks again,

    Indhu

  • indhu's avatar
    indhu
    Helper III
    8 years ago

    Thanks Phil_Seamark

     

    Actually, I have a date column which i am transforming in the following way,

    1. Duplicate the actual date column

    2. calculate the day of the week by right click -> Transform -> day -> day of week

    Now I have a column with a day of the week in numbers and wanted to transform that into the name. One option will be to use replace values option. But I feel it is not an efficient way to do it.

    Following your previous post, 

     

    = Table.DuplicateColumn(#"Renamed Columns2", "timestamp", "timestamp - Copy")

    This will be the actual code and when using the format option with this,

     

    = Table.DuplicateColumn(#"Renamed Columns2", "timestamp", format("timestamp - Copy","DDDD")

     I know something is wrong but can't find out what it is can you please put me in the right direction?

     

    Thanks,

    • anithat's avatar
      anithat
      Resolver II
      8 years ago

      Hi Indhu

       

      Have you tried to select "Name of Day" in the Transform option.

       

      1. Duplicate the actual date column

      2. calculate the day of the week by right click -> Transform -> day -> day of week  Name of Day

       

      Is that what you are Expecting?

      • indhu's avatar
        indhu
        Helper III
        8 years ago

        anithat thanks for your reply. What you mentioned will fetch day name in text. This is what i expect but this makes sorting difficult. 

         

        The above result will only allow us to sort by alphabet which makes visuals weird. I wanted the visual to be ordered beginning from Monday. For this purpose, I used switch statement by manually using numbers at the beginning like "1.Monday". 

         

        I did this in a calculated column. Now trying to figure out in a custom column

         

        Thanks,