/usr/share/octave/packages/3.2/nan-2.4.4/range.m is in octave-nan 2.4.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | function Q=range(Y,DIM)
% RANGE calculates the range of Y
% Missing values (encoded as NaN) are ignored.
%
% Q = range(Y)
% Q = range(Y,DIM)
% returns the range along dimension DIM of sample array Y.
%
% Q = range(HIS)
% returns the RANGE from the histogram HIS.
% HIS must be a HISTOGRAM struct as defined in HISTO2 or HISTO3.
%
% see also: IQR, MAD, HISTO2, HISTO3, PERCENTILE, QUANTILE
% $Id$
% Copyright (C) 2009,2010,2011 by Alois Schloegl <alois.schloegl@gmail.com>
% This function is part of the NaN-toolbox
% http://pub.ist.ac.at/~schloegl/matlab/NaN/
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation; either version 3 of the License, or
% (at your option) any later version.
%
% This program 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 this program; If not, see <http://www.gnu.org/licenses/>.
if nargin<2,
DIM = [];
end;
if isempty(DIM),
DIM = find(size(Y)>1,1);
if isempty(DIM), DIM = 1; end;
end;
if nargin<1,
help range
else
SW = isstruct(Y);
if SW, SW = isfield(Y,'datatype'); end;
if SW, SW = strcmp(Y.datatype,'HISTOGRAM'); end;
if SW,
Q = repmat(NaN,1,size(Y.H,2));
for k=1:size(Y.H,2);
t = Y.X(find(Y.H(:,k)>0),min(size(Y.X,2),k));
Q(1,k) = max(t)-min(t);
end;
elseif isnumeric(Y) && nargin==1,
Q = max(Y) - min(Y);
elseif isnumeric(Y) && nargin==2,
Q = max(Y,[],DIM) - min(Y,[],DIM);
else
help range
end;
end;
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