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 tTest with the power of the ChisqareTest
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 pvalue leading to higher power.

Mixed Diagram (Line/Bar) with two yAxis 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 Yaxis data range on Power BI due to Yaxis 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 Yaxis then changed ribbon chart not it showing as below. 1) Configuring Yaxis

