dsort
Sort discrete-time poles by magnitude
Syntax
dsort
[s,ndx] = dsort(p)
Description
dsort
sorts the discrete-time
poles contained in the vector p
in descending order
by magnitude. Unstable poles appear first.
When called with one lefthand argument, dsort
returns
the sorted poles in s
.
[s,ndx] = dsort(p)
also
returns the vector ndx
containing the indices used
in the sort.
Examples
Sort the following discrete poles.
p = -0.2410 + 0.5573i -0.2410 - 0.5573i 0.1503 -0.0972 -0.2590 s = dsort(p) s = -0.2410 + 0.5573i -0.2410 - 0.5573i -0.2590 0.1503 -0.0972
Limitations
The poles in the vector p
must appear in
complex conjugate pairs.
Version History
Introduced before R2006a