21.5.13 Triangular window
The triangle_window
command applies the triangle window function to a sequence or its segment.
-
triangle_window takes one mandatory argument
and up to three optional arguments:
-
v, a real vector with length n.
- Optionally, one of:
-
d, an integer in {−1,0,1} (by default, d=0).
- m,N ⟨,d⟩, a sequence of two integers
and optionally an integer d∈{−1,0,1} (by default, m=0 and N=n).
- triangle_window
returns the elementwise product of [vm,vm+1,…,vm+N−1]
and the vector w of length N defined by
wk=1− | ⎪
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⎪ | | ⎪
⎪
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⎪ | ,
k=0,1,…,N−1.
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The case d=−1 is called the Bartlett window function.
Example
listplot(triangle_window([1$1000],1)) |