I have a set of reference values. After a particular experiment I get a
set of result.
How can I identify a point after which it deviated above a threshold
An example: suppose the reference is 20,19,18,17,16,15,14,13,12,11.
After an experiment the values are changed to :
At the 6th point the value deviated from reference by a value of 5.
After what operations can I get the answer as "6"?