MedCalc
VSEM function
Description
VSEM(variable[,filter]) returns the standard error of the mean of a variable. An optional filter can be specified.
The Standard Error of the Mean (SEM) is calculated as follows:
$$SEM = \frac{s}{\sqrt{n}} $$
$$SEM = \frac{s}{\sqrt{n}} $$
where s is the standard deviation:
$$s = \sqrt{\frac{\sum_{}^{}{(x-\bar{x})^2}}{n-1}} $$
Example
Note
This function calculates a statistic on a variable. Be careful when you use this function in cells of the columns that correspond to the variable, because this actually adds a value to the variable which can lead to unexpected and faulty results. You can exclude the cell to avoid this.
MedCalc Software Ltd
Digimizer