Forum Discussion
convert week number into data
As I'm not aware of a function that returns the date of the week, instead I'd create a calendar for the year (replace "YourYear" respectively), create the week numbers and their first dates. Then filter on your week-numbers:
let Source = {Number.From(#date(YourYear,01,01))..Number.From(#date(YourYear,12,31))}, #"Converted to Table" = Table.FromList(Source, Splitter.SplitByNothing(), null, null, ExtraValues.Error), #"Changed Type" = Table.TransformColumnTypes(#"Converted to Table",{{"Column1", type date}}), WeekColumn = Table.AddColumn(#"Changed Type", "Week", each Date.WeekOfYear([Column1])), StartOfWeek = Table.AddColumn(WeekColumn, "StartOfWeek", each Date.StartOfWeek([Column1])), #"Filtered Rows1" = Table.SelectRows(StartOfWeek, each [Week] >= List.Min(YourWeekList) and [Week] <= List.Min(YourWeekList)) in #"Filtered Rows1"
Yes, one data per week- the first day.
Thanks!
As I'm not aware of a function that returns the date of the week, instead I'd create a calendar for the year (replace "YourYear" respectively), create the week numbers and their first dates. Then filter on your week-numbers:
let
Source = {Number.From(#date(YourYear,01,01))..Number.From(#date(YourYear,12,31))},
#"Converted to Table" = Table.FromList(Source, Splitter.SplitByNothing(), null, null, ExtraValues.Error),
#"Changed Type" = Table.TransformColumnTypes(#"Converted to Table",{{"Column1", type date}}),
WeekColumn = Table.AddColumn(#"Changed Type", "Week", each Date.WeekOfYear([Column1])),
StartOfWeek = Table.AddColumn(WeekColumn, "StartOfWeek", each Date.StartOfWeek([Column1])),
#"Filtered Rows1" = Table.SelectRows(StartOfWeek, each [Week] >= List.Min(YourWeekList) and [Week] <= List.Min(YourWeekList))
in
#"Filtered Rows1"
great, it was vary helpful.
Apologies for resurrecting an old thread, but i've implemented this solution and it's hit a snag - The code generates a column of tables as it should but when I then try and insert a step after it to expand out the "startofweek" column, I get an error:
"gaweek" is the name of the "week" column in my source data which is drawn from Google Analytics (which I replaced the "yourweeklist" tags with in the supplied code as I think I was supposed to.)
