User`s guide

Mean
5-304
element y
ij
containing the mean value of the jth column over all inputs since
the last reset, up to and including element u
ij
of the current input.
If the
Reset port parameter is set to Non-zero sample, the optional Rst port
is enabled and the block resets the running mean when the scalar input at the
Rst port is nonzero. (The Rst port can be disabled by setting the Reset port
parameter to
None.) For sample-based inputs, the running mean for each
channel is initialized to the value in the corresponding channel of the current
input. For frame-based inputs, the running mean for each channel is initialized
to the earliest value in each channel of the current input.
As in basic operation, length-M 1-D vector inputs and sample-based length-M
row vector inputs are both treated as M-by-1 column vectors.
Example The Mean block in the model below calculates the running mean of a
frame-based 3-by-2 (two-channel) matrix input,
u. The running mean is reset
at t=2 by an impulse to the block’s
Rst port.
The Mean block has the following settings:
•
Running mean =
•
Reset port = Non-zero sample
The Signal From Workspace block has the following settings:
•
Signal = u
•Sample time = 1/3
•Samples per frame = 3
where
u = [6 1 3 -7 2 5 8 0 -1 -3 2 1;1 3 9 2 4 1 6 2 5 0 4 17]'