Opomba
To je eden iz serije člankov, ki podrobno opisujejo rešitve, poslane za izziv Podcast 2316.
V svojem prvotnem videu o preoblikovanju podatkov sem prišel do točke, ko sem moral iz stolpca dobiti prva dva znaka. Moja metoda je vključevala razdeljeni stolpec za ustvarjanje prvih dveh znakov in vsega drugega. Nato sem izbrisal vse ostalo.
Mike Girvin iz kanala ExcelisFun, pa tudi Brandon Brimberry, Wyn Hopkins iz Access Analytic, Geert Demulle, so opozorili, da bi bila hitrejša uporaba Transform, Extract, First Characters.
Tako ostanejo samo podatki o četrtletju, ne da bi bilo treba izbrisati preostali del stolpca.
Bohdan Duda je uporabil Extracted Text Before Delimiter, da je dobil vse pred znakom _.
Mike Girvin je opozoril, da je bila njegova rešitev "v trenutku, preden sem prišel ven." Tu je njegova koda:
let Source = Excel.CurrentWorkbook()((Name="BadStartData"))(Content), #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(Source, ("Category Description"), "Quarter", "Amount"), #"Added Custom" = Table.AddColumn(#"Unpivoted Other Columns", "Employee", each if not Text.StartsWith((Quarter),"Q") then (Quarter) else null), #"Filled Down" = Table.FillDown(#"Added Custom",("Employee")), #"Extracted First Characters" = Table.TransformColumns(#"Filled Down", (("Quarter", each Text.Start(_, 2), type text))), #"Filtered Rows" = Table.SelectRows(#"Extracted First Characters", each Text.StartsWith((Quarter), "Q")), #"Pivoted Column" = Table.Pivot(#"Filtered Rows", List.Distinct(#"Filtered Rows"(Quarter)), "Quarter", "Amount", List.Sum), #"Filtered Rows1" = Table.SelectRows(#"Pivoted Column", each ((Employee) "Dept. Total")), #"Inserted Sum" = Table.AddColumn(#"Filtered Rows1", "Total", each List.Sum(((Q1), (Q2), (Q3), (Q4))), type number), #"Sorted Rows" = Table.Sort(#"Inserted Sum",(("Employee", Order.Ascending),("Category Description", Order.Ascending))), #"Changed Type" = Table.TransformColumnTypes(#"Sorted Rows",(("Q1", type number), ("Q2", type number), ("Q3", type number), ("Q4", type number), ("Total", type number), ("Employee", type text), ("Category Description", type text))) in #"Changed Type"Tu je rešitev Geerta DeMulleja:
let Source = Excel.CurrentWorkbook()((Name="tblUglyData"))(Content), #"Changed Type" = Table.TransformColumnTypes(Source,(("Category Description", type text), ("Dept. Total", type number), ("Q1", type number), ("Q2", type number), ("Q3", type number), ("Q4", Int64.Type), ("Employee 1", type number), ("Q12", type number), ("Q23", type number), ("Q34", Int64.Type), ("Q45", Int64.Type), ("Employee 2", Int64.Type), ("Q16", Int64.Type), ("Q27", Int64.Type), ("Q38", Int64.Type), ("Q49", Int64.Type), ("Employee 3", Int64.Type), ("Q110", Int64.Type), ("Q211", Int64.Type), ("Q312", Int64.Type), ("Q413", Int64.Type), ("Employee 4", type number), ("Q114", type number), ("Q215", type number), ("Q316", type number), ("Q417", Int64.Type))), #"Removed Columns" = Table.RemoveColumns(#"Changed Type",("Dept. Total", "Q1", "Q2", "Q3", "Q4")), #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(#"Removed Columns", ("Category Description"), "Attribute", "Value"), #"Added Conditional Column" = Table.AddColumn(#"Unpivoted Other Columns", "Employee", each if Text.StartsWith((Attribute), "Employee") then (Attribute) else null), #"Filled Down" = Table.FillDown(#"Added Conditional Column",("Employee")), #"Filtered Rows" = Table.SelectRows(#"Filled Down", each Text.StartsWith((Attribute), "Q")), #"Extracted First Characters" = Table.TransformColumns(#"Filtered Rows", (("Attribute", each Text.Start(_, 2), type text))), #"Renamed Columns" = Table.RenameColumns(#"Extracted First Characters",(("Attribute", "Quarter"))), #"Pivoted Column" = Table.Pivot(#"Renamed Columns", List.Distinct(#"Renamed Columns"(Quarter)), "Quarter", "Value"), #"Changed Type1" = Table.TransformColumnTypes(#"Pivoted Column",(("Employee", type text))), #"Inserted Sum" = Table.AddColumn(#"Changed Type1", "Total", each List.Sum(((Q1), (Q2), (Q3), (Q4))), type number), #"Sorted Rows" = Table.Sort(#"Inserted Sum",(("Employee", Order.Ascending), ("Category Description", Order.Ascending))) in #"Sorted Rows"Vrnite se na glavno stran izziva Podcast 2316.
Preberite naslednji članek v tej seriji: Power Query: Dodajanje skupnega stolpca.
