Filtering a Multi-Select Slicer via AND instead of OR logic
In Power BI, slicer visuals work by restricting the rows of data accessible by visuals in the report. Multiselecting slicers unions the criteria by giving rows for all criteria. What is not possible with the default way Power BI filters things is to multiselect data with an intersection (using AND instead of OR logic) to only give rows that fit BOTH the selected criteria. For the report I am working on, I was asked to configure a way so that multi-selecting of our filter categories would filter data via this AND intersection opposed to the Power BI default. Other Solutions: Upon initial research (read: extensive googling!) I came across the following four articles which detail different approaches to achieving this. They all generally tackle the issue in a similar way – using measures to compare counts of selected items versus the count of rows matching these selected criteria. Slicer with AND condition in Power BI - RADACAD Apply AND Logic to Multiple Selection in DAX Slicer - SQLBI Changing “OR” to “AND” Logic for Power BI Slicers | by Orysya Stus | Seismic Innovation Labs | Medium Power BI: Implement AND/OR Selection | by ZhongTr0n | Towards Data Science However, due to the structure of the data I was working with and the specific needs of the report, none of these solutions exactly worked. The Data: For the sake of privacy I cannot share the actual data of the report although for developing the right method to replicate this ‘AND’ filter I can show a snippet of the structure of the data I am working with. Requirements: The specific solution I was tasked to create was a way to multi-select a slicer based on [Course] to filter visuals that all concerned the number of distinct Employees (based on unique key field [Email]). Without any of the AND logic implemented, the report looked like the following: You can see we have a count of the number of trainees broken down by different categories (hidden for the sake of privacy). When different courses are selected the data shown dynamically changes to include rows relating to either Course 1 OR Course 2 OR Course 3… and so on. Solution: To change this logic to instead give rows of one table (Employee Head Count) relating to multiple rows in another one (Course 1 AND Course 2 AND Course 3 …): DAX Measures! I have broken down my solution into two different parts corresponding to the two measures I have made. Pt 1. Trainees Count Without any AND logic, our original measure to count the number of employees who had completed training was the following: Trainees = DISTINCTCOUNT('Training Records'[Email]) To implement AND logic, we result in the following: numTraineesCompletedALLSelected = //the number of trainees who have selected all completed courses // count the number of criteria (courses) selected var selectedCourses = VALUES(Course[Course]) var numSelectedCourses = COUNTROWS(selectedCourses) //count number of selected courses completed per trainee var result = COUNTROWS( FILTER( GROUPBY( FILTER('Training Records', RELATED('Course'[Course]) in selectedCourses), 'Employee Head Count'[Email], "SelectedCoursesCompleted", COUNTX(CURRENTGROUP(), [Course]) ), [SelectedCoursesCompleted] >= numSelectedCourses) ) //if courses are being filtered: filter with AND condition //else count trainees normally return IF(ISFILTERED(Course[Course]), result, DISTINCTCOUNT('Training Records'[Email]) ) Let’s break this down, To start off we create two variables selectedCourses and numSelectedCourses which extract the courses we have selected via the slicer. Then we have the result variable – the main chunk of the logic. If we focus into the middle bit we have a GROUPBY function wrapping COUNTX with a filtered table. What this does is, from our training records table filtered to only have rows corresponding to the selected criteria, we count the number of courses (as per the COUNTX) grouped by each employee email. This gives us a table for each employee with a corresponding count of how many of the selected courses they have completed. We then further filter this resulting table to only give us employees who have completed at least the same number as the amount of selected courses. The final function is to COUNTROWS of this table to provide a number of how many employees have completed ALL of the selected courses. The final return part of the measure has an extra logic check to see if our criteria is being filtered at all. If it is, we return the result just calculated, if not, we default back to the usual way to count the number of employees. This new measure numtraineesCompeltedALLSelected (pending a name improvement lol) is what we use to replace the original Trainees measure. Pt 2. Count Courses Per Trainee While the previous measure sorts us out for visuals directly using the count of trainees (eg. Our bar graph, or card), what this does not account for is our table visualisations which have data rows corresponding to individual trainees from the Employee Head Count table. To solve this issue, I created a second measure, coursesCompletedPerTrainee = // count the number of criteria (courses) selected var selectedCourses = VALUES(Course[Course]) var numSelectedCourses = COUNTROWS(selectedCourses) // count the number of courses per trainee var coursesPerTrainee = COUNTX( FILTER('Training Records', RELATED(Course[Course]) in selectedCourses), 'Training Records'[Email]) var ANDCheck = IF(coursesPerTrainee >= numSelectedCourses, 1) //return non-blank if courses are not being filtered return IF(ISFILTERED(Course[Course]), ANDCheck, "Non-Blank") Looking very similar to our previous measure, our main difference is that this measure no longer uses a GROUPBY function. Instead, our return value is the number of courses (of the selected courses) completed per trainee (calculated with the COUNTX function). This is then used to filter our table by If we are not filtering at all we simply return a string “Non-Blank” which avoids errors when no criteria is selected. Summary When attempting this solution I found it necessary to have two measures to achieve two main things: 1) A total count of trainees who had completed selected courses (pt. 1) and 2) a measure by which to filter table visuals to only return relevant employee records (pt. 2). This is the main difference I found between my solution and the four previous articles I read in research. I found the difference in how the data I was using was structured compared to the sample data in solutions brought about this requirement as I was concerned with counting the records in one table (Training Records) grouped by the rows of another (Employee Head Count). I would be very interested in hearing of a way to optimize this and perhaps result in only one measure which can be used for the two purposes – the similarity in their code makes me believe this may be possible. For the time being however, I have developed this as the solution to meet the needs of the project as it results in the relevant output being provided for the report.
Adjust matrix dates (in intervals) based on slicer selection
Hello, I have a Power BI report where I am using the Matrix Visual and have a date slicer. In the matrix, I have the Date value in the Column field. I need the dates to adjust with the dates selected in the slicer and also show in intervals of 7 days. I have tried binning the Date field into 7 days, but the last day shown in the Matrix is related to the latest Sunday, vs the last date selected in the slicer. I have also tried several dax formulas, but I can only get the last date shown in the matrix to correspond with the Maximum date in my data set. Any ideas on a formula that will allow me to show the Date field in the matrix in increments of 7 days and also display the last date that corresponds with the latest date selected in the slicer? (In my example below, the last date in the matrix should be 8/31 instead of 9/2). Here is the formula I am using to achieve this:Latest date value in Card visual
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This picture showcases the end goal (sorry i dont have a better example) that i am trying to acheive. I do have a calender table and all the measures but cant seem to find how to achieve this for the matrix visual. Please reach out with any knowldege on this!
