PowerBI - Displaying the average of row figures in a matrix - matrix

I've been Googling around this problem for hours and haven't found a solution that suits my needs.
I have a large data set with agent activities and the total time in seconds each activity lasts. I'm pulling this together in a matrix, to display agent names on the left and the start date of each week across the top like so:
This is working as intended (I've used a measure to convert the seconds into hours) but I need the average of the displayed weeks as another column, or to replace the Total column.
I've tried solutions involving DAX measures but none are applicable, likely because I'm using a custom column (WeekStart) to roll up my numbers into weeks. Adding more complexity is I have 2 filters on the matrix; one to exclude any weeks older that 5 weeks in the past and another to exclude any future weeks.
In Excel I'd just add another column next to the table, averaging the 5 cells to the left of it. I could add it to the data table with a SUMIFS checking the Activity date is within the week range and dividing the result by 5. I can't do either of these in PowerBI and I'm new to the software so I'm at a loss as to how to do this.

Related

Sumifs Ratio in PowerPivot

I have a table in Excel, utilizing Power Pivot that I then display/filter using a Pivot Table. Within my dataset, calculating a ratio within Power Pivot that "sums" correctly in the pivot table based on slicers is fine - this utilizes a SUMX(Cost)/SUMX(Total) and everything works fine. By sums correctly, I mean if I further break down the data set based on Region/State/Product/Employee, all those Rows sum up correctly for the ratio percentage.
The dataset is filtered based on a single month or range of months. The result of this works fine for either the single month or range of Months. What I'm trying to do is within my Pivot Table, show a current month ratio AND a year to date ratio. I've tried messing around with equations I've found online, but nothing seems to work. This includes the following attempts:
=CALCULATE([Cost],[ProductID]="224594")/CALCULATE([Total],[ProductID]="224594")
=SUMX (FILTER(ALL('TableName'),PATHCONTAINS ('TableName'[ProductID], EARLIER('TableName'[ProductID]))),'TableName'[Cost]) / SUMX(FILTER(ALL('TableName'),PATHCONTAINS('TableName'[ProductID], EARLIER ('TableName'[ProductID]))),'TableName'[Total])
I need the "sumifs" to sum the cost for Product A for all months divided by the sum of total for Product A for all months. I do not want to hard code in the the Product ID into the equation, but simply sum all previous records for that product, but I can't seem to get this to work.
Any suggestions?
Sample Data Set
I used the calculate and filter functions in a column instead of trying to use them in a measure, which fixed the problem.

DAX formula, crossfilter function nor returning expected result

I'm obtaining wrong results from a DAX formula and I can't understand why.
In my database I have articles that are composed by multiple tools, which are produced from blank tools. One blank can be used to produce multiple tools. I need to calculate blank sales by 3 time periods: last 6, last 12 and last 24 months.
This is my Power BI model:
The time period table I used for the time period slicer and the measure look like this :
To obtain Blank's sales volumes, I created 3 measures:
When I use the last formula, which I thought would have returned the right amount of Blank sold by article by time period, I obtain strange results.
When I select "last 24 months" time period, everything looks fine:
When I select "Last 12 months", the total is fine, but the total by article is wrong:
Finally, if I select "Last 6 months" time period, all the results are totally wrong:
The curious fact is that I checked the result by executing a sql query on the database, and the DAX formula returns the right result (so 1466 for the selected time period), but only when used in a card, without filtering it by Article number.
I have no other filters that affect the visuals.
Could you help me understand why I'm not obtaining the right result, or suggest a better way to reach the desired results?
I'm guessing (at least part of) the problem is that you are backing up from different end dates because LASTDATE(Sales[DocumentDate]) can return different values for different ArticleNo.
I'm not sure what value you actually want for that date, possibly LASTDATE('Dates Table'[Date]), but I'm pretty sure you want it consistent across different ArticleNo.

How to create a matrix with12 months of rolling/trailing data in Power BI

This is my input file, having months of data.
Now I want to create this matrix in the PBIX, with 12 months of trailing data from a date slicer.
That is I will have a date slicer and I want to see the previous 12 months of data from the selected month.
For example, if I select Jan'21 in my slicer I want to have data from Jan'21 to Feb'20.
I watched some of the videos, but those videos focused on measures or rolling average or rolling total, in my case I want columns.
I have no idea how to implement this in Power BI. Thanks.
EDIT:- The Actual Exp and Actual Min column also have N/A for various months.

Summing times in Google sheets

I have a sheet where I record my working hours (this is more for me to remind me to stop working than anything else). For every day, I have three possible shifts - early, normal & late, and I have a formula which will sum up any times put into these columns and give me the daily total hours.
To summarise the duration of time spent working in a day, I use the following formula: =(C41-B41)+(E41-D41)+12+(G41-F41) which is:
early end time minus early start time
normal end time minus normal start time PLUS 12 hours
late end time minus late start time
Which gives me output like this:
What I cannot seem to achieve is, the ability to sum the daily totals into something which shows me the total hours worked over 1-week. If I attempt to sum the daily totals together for the example image shown, I get some wild figure such as 1487:25:00 when formatting as 'Duration' or 23:25:00 when formatted as 'Time'!
All my cells where I record the hours worked are formatted as 'Time'
When using arithmetic operations on date values in Google Sheets, it's important to remember that the internal representation of a date is numeric, and understood as the number of days since January 1, 1970.
What follows from that, is that if you want to add 12 hours to a time duration, you should not write "+12" because that will in fact add 12 days. Instead add "+12/24". In other words, try the following formula instead of the one you are using now:
=(C41-B41)+(E41-D41)+(12/24+G41-F41)

Functions to calculate max windspeed, average winspeed and median

I am totally new to data structure and algorithms. As much as i am learning and trying to pick up the various functions i was asked to display 5 sets of data structure based on a sample data in csv.
Each file contains a year’s worth of data for multiple sensors. Data for each date-time recording are on separate rows. Within each row, the value for each sensor is separated by a comma. There are a total of 105,120 rows per year/file. Currently the client has 10 years of data which is a million records.
I am supposed to find out:
The maximum wind speed of a specified month and year.
The median wind speed of a specified year.
Average wind speed for each month of a specified year. Display the data in the order of month (Jan, Feb, Mar, ...)
Total solar radiation for each month of a specified year. Display the data in a descending order of the solar radiation (i.e. month with the highest total solar radiation will display first).
Given a date, show the times for the highest solar radiation for that date. There can be one or more time values with the same highest solar radiation. Display the list of times in descending order (e.g. 24:00, 23:00, 22:00, etc.)
As i am new to Data structure. I have been cracking hard on the type of algorithms to propose on the above.
I am thinking if i can use:
BST Binary Search Tree to solve Qns 1
Linear for Qns 2
Constant to sort and linear to find the average for Qns 3
Both linear for Qns 4 and 5.
Anyone have a better suggestion or sample pseudo code to share on this. Or how should i start.
Regards, Heaptie

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