problem with mean function

hiiiii, i use another name for the variable to find the mean value in mean=mean(X).but in mean(X) an error occurred as undefined X.So how can i define the variable X which is number of frames extracted from a video.Can you please explain how the mean value can be calculated.

Answer 1

[Walter Roberson]

Why would you bother to find the mean of the number of frames in the video? That would be the mean of a scalar, which would be the scalar itself. If you are processing a number of videos, then count their frames and store the frame count as elements of a vector and take the mean of that vector.