sqrt()
The sqrt() function computes the square root of a value.
Example 1:
# Calculate the square root of 157
sqrt(157)
Example output:
Example 2:
Example 2:
# Use sqrt() to get the standard deviation around the mean of Thumb
empty_model <- lm(Thumb ~ NULL, data = Fingers)
sqrt(sum(resid(empty_model)^2)/156)
Example output:
