Standard Deviation by Group
Hi and thank you in advance, Big Picture: I need to create a flag that tells me when a value exceeds 95% confidence interval (the accepted tolerance limit in this case). These flags will then be counted and reported about by hierarchical group (city, state, country for example) so individual managers can investigate why those exceed expected parameters. Technical Issue: I'm having difficulty calculating the standard deviation by row by hierachy group. The formula used in "desired standard deviation" column is stdev.p(if($A:$A=$A2,$B:$B)). How do I replicate this in Power BI? Thanks so much for your help. Owen P.S. Bonus cool points if your solution can be extended to other math functions.Standard Deviation from 4 measured columns.... DARN!
Hi all! I've researched so many sites (and previous answers) concerning computing standard deviation in PowerBI. I never knew it would be so difficult for me to do since Excel makes it SIMPLE! I have a matrix table that I want to resemble an excel table. The data shown are all aggregate values compiled from individual records (with some duplicates). All columns are measures. It is important for the pivot to remain and that I only calculate the current month for each year. For an example, I want to calculate March for the current year and March for the previous 5 years (2022 - 2017). While the STDEVX.P function is fairly simple, I need it to only reference my previous 5 year columns (2017-2021). When I use the function, it references EVERYTHING since I don't have a DAX formula to add in the caveats. If my vision is possible, please help me out or let me know of alternatives. I will give kudos and I don't mind reading recommendations!
Calculate Coefficient of Variation for Category
Hi everyone, you have been very Helpfull to me and i really appreaciate that. I'm trying to calculate the Coefficent of variance for different Product name. I have 300 Product name and their Selling Price. Also I will apply outside filter for Regions. I used the Quick measure in power bi Vari = VARX.P(KEEPFILTERS(VALUES('TABLE'[Product NAME])), CALCULATE [ Selling Price])) Selling Price is Calculated measure. but the result was 0.00 for all the products. i'm not sure where is the problem ?
Trying to Calculate Standard Deviation
Hello All, I am trying to calculate standard deviation and most of what I have found on the internet is based on columns in a table and I am struggling with how to write a DAX formula for use with an analysis server where the data pulls from. I have used this link as a basis and have made some strides in calculating the SUM and the Avg. In the screenshot below I have the table in which I selected a range of weeks and Repeat Dispatches in whcih I am trying to plot standard deviation for. For SUM I used the formula: *RDR SUM = CALCULATE(SUMX(VALUES('Dim - Calendar'[Fiscal Week]),([Repeat Dispatch 7 day Numerator]/[Repeat Dispatch Denominator])), ALLSELECTED('Dim - Calendar'[Fiscal Week])) For Avg I used the formula: *RDR Avg = CALCULATE(DIVIDE([Repeat Dispatch 7 day Numerator],[Repeat Dispatch Denominator]), ALLSELECTED('Dim - Calendar')) For Standard deviation I cannot quite find how to use the previous calculations to find standard deviation which should be .0266 based on the calculations I found with an online calculator. Any help would be appreciated. Dave
