HOWCOMMON

Supports data filtering for potentially redundant data streams

HOWCOMMON takes a pair of vectors and returns uniquely sampled domains with corresponding values for the range. Unlike functions such as INTERP, however, duplicate domain input values are accepted, and the appropriate type of output can be user specified.

For example, suppose one had:

x = [1 2 3 3 4 5 5 5 ];
y = [10 20 30 31 40 51 52 53];

[domain,num,range] = HOWCOMMON(x,y,'min')

returns:

domain = [1 2 3 4 5 ];
num = [1 1 2 1 3 ];
range = [10 20 30 40 50];

Instead of 'min', one could use:

'max' (range = [10 20 31 40 52])
'mean' (range = [10 20 30.5 40 51])
'sum' (range = [10 20 61 40 153])