Useful tips for everyday
Is hazard ratio a rate ratio? The hazard ratio is essentially the same as the rate ratio. However, an assumption underlying the estimation of the…
When do you have problems with logistic regression? When the assumptions of logistic regression analysis are not met, we may have problems, such as biased…
How do you intuitively explain what a kernel is? Kernel is a way of computing the dot product of two vectors x and y in…
How do you find the mean of a cluster? Essentially, the process goes as follows: Select k centroids. These will be the center point for…
How do you find the Wilcoxon rank sum test? The results of the Wilcoxon Rank-Sum test are displayed in Figure 3. =RANK(A6,$A$6:$B$17,1) + (COUNTIF($A$6:$B$17,A6)-1)/2. using…
How do I increase accuracy on CNN? Train with more data: Train with more data helps to increase accuracy of mode. Large training data may…
What is forecasting of a value? Forecasting is a technique that uses historical data as inputs to make informed estimates that are predictive in determining…
What happens if you ignore autocorrelation? Below, we show that ignoring autocorrelation will yield incorrect confidence intervals. The red curve is (an estimate of) the…
How do you monitor employee attendance? There are many different ways to track employee attendance, including: Manually entering employee hours into a spreadsheet. Card swiping.…
Are fixed effects consistent? Fixed effects are variables that are constant across individuals; these variables, like age, sex, or ethnicity, don’t change or change at…