How to create Bar chart comparing 'This Week', 'Last Week', and 'This Week Last Year' data

[jimbob741]

Hello,

I've only just started with Power BI and DAX very recently, so am quite stuck with relation to this problem i'm having.

I would like a bar chart that will display 3 different results based on the week number of the year I have selected. I would like to select the week (e.g. 'week 35'), then from there I would like it to calculate the previous week, and previous week last year and display the results side by side.

The data is litterally just a 'Week Number' column with a 'Users' count as the value.

Please could someone help me with the steps needed to achieve this?

Many thanks in advance!

[v-haibl-msft · Accepted solution]

@jimbob741

I’d like to give you a sample as below. The .pbix file has been upload here. I assume we have a table like below.

We can first create a calendar table and create two columns with following formula. Create a relationship between these two tables with Date key.

Calendar = CALENDAR ( "1/1/2015", "12/31/2016" )

WeekNum = WEEKNUM ( 'Calendar'[Date] )

Year = YEAR ( 'Calendar'[Date] )

In original table, also create a WeekNum column.

WeekNum = RELATED ( 'Calendar'[WeekNum] )

Then we only need to create two measures to get 'Last Week' and 'This Week Last Year' data.

Last Week = 
VAR CurrentWeekNum =
    MAX ( 'Calendar'[WeekNum] )
VAR CurrentYear =
    MAX ( 'Calendar'[Year] )
RETURN
    (
        CALCULATE (
            SUM ( Table1[Users] ),
            FILTER (
                ALL ( 'Calendar' ),
                'Calendar'[Year] = CurrentYear
                    && 'Calendar'[WeekNum]
                    = CurrentWeekNum - 1
            )
        )
)

This Week Last Year = 
VAR CurrentWeekNum =
    MAX ( 'Calendar'[WeekNum] )
VAR CurrentYear =
    MAX ( 'Calendar'[Year] )
RETURN
    (
        CALCULATE (
            SUM ( Table1[Users] ),
            FILTER (
                ALL ( 'Calendar' ),
                'Calendar'[Year]
                    = CurrentYear - 1
                    && [WeekNum] = CurrentWeekNum
            )
        )
    )

Drag two slicers for Year & WeekNum and a clustered bar chart into canvas.

Best Regards,

Herbert

[ElliotP]

@v-haibl-msftAmazing Solution.

I'm trying to use the same code; I have it working for my purpose except I can't seem to use my Datekey or a calculated column in my date table, I have to use the WeekNum value otherwise it doens't work; thoughts?

[jimbob741]

Thank you very much Herbert, much appreciated.

Your solution seems to be exactly what im after, I will give it a go and let you know how I got on!

[v-haibl-msft]

@jimbob741

Has your problem gotten solved?

Best Regards,

Herbert

[jimbob741]

Perfectly Herbert, thank you! Appologies for not confirming sooner.

[ShawnPrice]

I was trying to recreate this and it works well, I but instead of Users being a number I have Call Reps which is a text field. Can I do something like this with that, I can't seem to figure it out. Thanks.