Description
Vaex can calcluate the mean value from a huge data based on the grid designed by user. let's say we design a 2D grid in dimension of 400*600, and we got the mean value in this grid domain in each grid by vaex.mean(). However, how could I know the mean value is significant and believable? what's the confidence level of these mean value? Is there any function to calculate it except the grid loop?