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#
# Copyright 2001 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GNU Radio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
function plotfft (data, sample_rate)
if (nargin == 1)
sample_rate = 1.0;
endif;
if ((m = nargchk (1,2,nargin)))
usage (m);
endif;
len = length(data);
s = fft (data.*kaiser(len, 5));
incr = sample_rate/len;
min_x = -sample_rate/2;
max_x = sample_rate/2 - incr;
plot (min_x:incr:max_x, abs(fftshift(s)));
endfunction
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