The simplest smoothing algorithm is the "rectangular" or "unweighted sliding-average smooth". This method replaces each point in the signal with the average of "m" adjacent points, where "m" is a positive integer called the "smooth width".
A basic smoothing technique is known as the "rectangular" or "unweighted sliding-average smooth".  This approach calculates the value for each point by averaging the values of "m" consecutive points. The number of points averaged, denoted as "m", is a positive integer.