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Fix some deprecations in FIR design example #438

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Fix some deprecations in FIR design example #438

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6 changes: 3 additions & 3 deletions examples/FIR_design.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,7 @@ using Gadfly, DSP

function FIRfreqz(b::Array, w = range(0, stop=π, length=1024))
n = length(w)
h = Array{ComplexF32}(n)
h = Array{ComplexF32}(undef, n)
sw = 0
for i = 1:n
for j = 1:length(b)
Expand Down Expand Up @@ -68,7 +68,7 @@ h = FIRfreqz(f, w)
#' The next code chunk is executed in term mode, see the [script](FIR_design.jl) for syntax.
#+ term=true

h_db = log10(abs.(h));
h_db = log10.(abs.(h));
ws = w/pi*(fs/2)

#+
Expand All @@ -78,6 +78,6 @@ plot(y = h_db, x = ws, Geom.line,

#' And again with default options

h_phase = unwrap(-atan(imag(h),real(h)))
h_phase = unwrap(-atan.(imag(h),real(h)))
plot(y = h_phase, x = ws, Geom.line,
Guide.xlabel("Frequency (Hz)"), Guide.ylabel("Phase (radians)"))