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Anonymous
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4 years ago
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BMI Compute

Hi all, I need to add a custom column to calculate the Body Mass Index. I have two columns in the first one I have the code, where it stores the different vital measurements. This column, includes t...
  • serpiva64's avatar
    serpiva64
    4 years ago

    Hi, 

    to obtain this:

    you need to apply these steps (from Reordered Columns to the end, previous steps were needed to insert your sample data)

    You need to reorder Code_Text before User

    then Pivot column

    Change type to numeric if they aren't

    and finally Add BMI column

     

     

    If you prefer this table you have to select User and unpivot other columns

     

    This is what you get in Advanced editor:

    let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUUoGYgsDpVgdCDcDiA11zE3gAuUIeSOocnMLOBei3MIULgBWDuEaw0w3h3Ohyg3gAiDllkBuLAA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [User = _t, Code_Text = _t, Value = _t]),
    #"Added Custom1" = Table.AddColumn(Source, "usr", each "usr"),
    #"Merged Columns" = Table.CombineColumns(Table.TransformColumnTypes(#"Added Custom1", {{"User", type text}}, "it-IT"),{"usr", "User"},Combiner.CombineTextByDelimiter("", QuoteStyle.None),"User"),
    #"Replaced Value" = Table.ReplaceValue(#"Merged Columns","c","cardiac_freq",Replacer.ReplaceText,{"Code_Text"}),
    #"Replaced Value1" = Table.ReplaceValue(#"Replaced Value","h","height",Replacer.ReplaceText,{"Code_Text"}),
    #"Replaced Value2" = Table.ReplaceValue(#"Replaced Value1","w","weight",Replacer.ReplaceText,{"Code_Text"}),
    #"Reordered Columns" = Table.ReorderColumns(#"Replaced Value2",{"Code_Text", "User", "Value"}),
    #"Pivoted Column1" = Table.Pivot(#"Reordered Columns", List.Distinct(#"Reordered Columns"[Code_Text]), "Code_Text", "Value"),
    #"Changed Type" = Table.TransformColumnTypes(#"Pivoted Column1",{{"cardiac_freq", Int64.Type}, {"height", Currency.Type}, {"weight", Int64.Type}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "BMI", each [weight]/([height]*[height])),
    #"Changed Type1" = Table.TransformColumnTypes(#"Added Custom",{{"BMI", type number}}),
    #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(#"Changed Type1", {"User"}, "Attribute", "Value")
    in
    #"Unpivoted Other Columns"

     

    If this post isuseful to help you to solve your issue consider giving the post a thumbs up and accepting it as a solution !