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Why does different axis in power bi diagram affect calculation


By : Marcelo Zucareli
Date : October 15 2020, 08:10 PM
it fixes the issue The reason this is happening is that October 1 is in week 39 of 2017 but not in week 39 of 2018, so you're getting a -100% YoY change from the group ISOWeek 39 & October, which you're filtering out via the visual level filter on you measure' values.
code :


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In 10. power / calculation / Power calculations


By : user3006779
Date : March 29 2020, 07:55 AM
To fix this issue If you mean in XCode, you have to #include and then you can use pow:
code :
double res=pow(10, 1.5);

Sample size and power calculation in r as viable alternative to proc power in SAS?


By : Park Jae Hyung
Date : March 29 2020, 07:55 AM
I hope this helps you . In pwr.t.test and its derivatives, d is not the null difference (that's assumed to be zero), but the effect size/hypothesized difference between the two populations. If the difference between population means is zero, no sample size will let you detect a nonexistent difference.
If population A has a proportion of 15% and population B has a proportion of 30%, then you use the function pwr::ES.h to calculate the effect size and do a test of proportions like:
code :
> pwr.2p.test(h=ES.h(0.30,0.15),power=0.80,sig.level=0.05)

     Difference of proportion power calculation for binomial distribution (arcsine transformation) 

              h = 0.3638807
              n = 118.5547
      sig.level = 0.05
          power = 0.8
    alternative = two.sided

NOTE: same sample sizes

> pwr.chisq.test(w=ES.w1(0.3,0.15),df=1,sig.level=0.05,power=0.80)

     Chi squared power calculation 

              w = 0.2738613
              N = 104.6515
             df = 1
      sig.level = 0.05
          power = 0.8

NOTE: N is the number of observations

Diagram that compares the power of the t-Test with the power of the Chi-sqare-Test


By : cjbs44
Date : March 29 2020, 07:55 AM
help you fix your problem If I understand the problem right, you are testing for a Binomial distribution with the mean under the null equal to 0.2 and the alternative being null greater than 0.2? If so, then on line 2 of you function g, shouldn't it be sigma <- sqrt(.2*(1-.2)) instead of sigma <- sqrt(.5*(1-.5))? That way, your standard deviation will be smaller, resulting in a larger test statistic and hence smaller p-value leading to higher power.

Mixed Diagram (Line/Bar) with two y-Axis won't display data on 2nd Axis


By : Sunday
Date : March 29 2020, 07:55 AM
it should still fix some issue Chart.js lets you add a line to a bar chart, but not a bar to a line chart. So you need to set the chart type to bar, e.g.:
code :
var config = {
  type: 'line', // <-- change to 'bar'!
  ...

Unable to select Ribbon chart Y-axis data range on Power BI due to Y-axis config option not available


By : aheliver
Date : March 29 2020, 07:55 AM
Does that help I have selected Line and stacked column chart and configured Y-axis then changed ribbon chart not it showing as below.
1) Configuring Y-axis
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