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Hi, I still new to power bi. I need to calculate this table data with the variance formula, but I get an error. This is the formula and table. K=2. Initial Estimate Mean(𝜃^) = 98.93455 (I create measure = 98.93455). This is my query
Variance = POWER(SUM('Table'[Total Failures (n)])/SUM('Table'[Service Time (τ)])-('Table'[Measure]),2) / SUM('Table'[Machine(k)])-1
Variance Formula = ((n/τ)-𝜃^)^2 /(k-1)
Machine(k) Total Failures(n) Service Time(τ)
TEP-A 7 0.07884
TEP-B 6 0.05256
The answer should be 334.634
Solved! Go to Solution.
Hi, @Anonymous ,
You can use VARX.S()
Column = DIVIDE(Total Failures,Service Time)
Measure = VARX.S('Table','Table'[Column])
Mark this post as a solution if this helps!
Hi, @Anonymous ,
You can use VARX.S()
Column = DIVIDE(Total Failures,Service Time)
Measure = VARX.S('Table','Table'[Column])
Mark this post as a solution if this helps!
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