Mercurial > octave-antonio
annotate scripts/statistics/base/prctile.m @ 14363:f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
* wavread.m, acosd.m, acot.m, acotd.m, acoth.m, acsc.m, acscd.m, acsch.m,
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csc.m, cscd.m, csch.m, sec.m, secd.m, sech.m, sind.m, tand.m, accumarray.m,
accumdim.m, bitcmp.m, bitget.m, bitset.m, blkdiag.m, cart2pol.m, cart2sph.m,
celldisp.m, chop.m, circshift.m, colon.m, common_size.m, cplxpair.m,
cumtrapz.m, curl.m, dblquad.m, deal.m, divergence.m, flipdim.m, fliplr.m,
flipud.m, genvarname.m, gradient.m, idivide.m, int2str.m, interp1.m,
interp1q.m, interp2.m, interp3.m, interpft.m, interpn.m, isa.m, isdir.m,
isequal.m, isequalwithequalnans.m, issquare.m, logspace.m, nargchk.m,
narginchk.m, nargoutchk.m, nextpow2.m, nthargout.m, num2str.m, pol2cart.m,
polyarea.m, postpad.m, prepad.m, profile.m, profshow.m, quadgk.m, quadv.m,
randi.m, rat.m, repmat.m, rot90.m, rotdim.m, shift.m, shiftdim.m, sph2cart.m,
structfun.m, trapz.m, triplequad.m, convhull.m, dsearch.m, dsearchn.m,
griddata3.m, griddatan.m, rectint.m, tsearchn.m, __makeinfo__.m, doc.m,
get_first_help_sentence.m, help.m, type.m, unimplemented.m, which.m, imread.m,
imwrite.m, dlmwrite.m, fileread.m, is_valid_file_id.m, strread.m, textread.m,
textscan.m, commutation_matrix.m, cond.m, condest.m, cross.m,
duplication_matrix.m, expm.m, housh.m, isdefinite.m, ishermitian.m,
issymmetric.m, logm.m, normest.m, null.m, onenormest.m, orth.m, planerot.m,
qzhess.m, rank.m, rref.m, trace.m, vech.m, ans.m, bincoeff.m, bug_report.m,
bzip2.m, comma.m, compare_versions.m, computer.m, edit.m, fileparts.m,
fullfile.m, getfield.m, gzip.m, info.m, inputname.m, isappdata.m, isdeployed.m,
ismac.m, ispc.m, isunix.m, list_primes.m, ls.m, mexext.m, namelengthmax.m,
news.m, orderfields.m, paren.m, recycle.m, rmappdata.m, semicolon.m,
setappdata.m, setfield.m, substruct.m, symvar.m, ver.m, version.m,
warning_ids.m, xor.m, fminbnd.m, fsolve.m, fzero.m, lsqnonneg.m, optimset.m,
pqpnonneg.m, sqp.m, matlabroot.m, __gnuplot_drawnow__.m,
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ginput.m, graphics_toolkit.m, gtext.m, hggroup.m, hist.m, hold.m, isfigure.m,
ishghandle.m, ishold.m, isocolors.m, isonormals.m, isosurface.m, isprop.m,
legend.m, line.m, loglog.m, loglogerr.m, meshgrid.m, ndgrid.m, newplot.m,
orient.m, patch.m, plot3.m, plotyy.m, __print_parse_opts__.m, quiver3.m,
refreshdata.m, ribbon.m, semilogx.m, semilogxerr.m, semilogy.m, stem.m,
stem3.m, subplot.m, title.m, uigetfile.m, view.m, whitebg.m, compan.m, conv.m,
deconv.m, mkpp.m, mpoles.m, pchip.m, poly.m, polyaffine.m, polyder.m,
polyfit.m, polygcd.m, polyint.m, polyout.m, polyval.m, polyvalm.m, ppder.m,
ppint.m, ppjumps.m, ppval.m, residue.m, roots.m, spline.m, intersect.m,
ismember.m, powerset.m, setdiff.m, setxor.m, union.m, unique.m,
autoreg_matrix.m, bartlett.m, blackman.m, detrend.m, fftconv.m, fftfilt.m,
fftshift.m, freqz.m, hamming.m, hanning.m, ifftshift.m, sinc.m, sinetone.m,
sinewave.m, unwrap.m, bicg.m, bicgstab.m, gmres.m, gplot.m, nonzeros.m, pcg.m,
pcr.m, spaugment.m, spconvert.m, spdiags.m, speye.m, spfun.m, spones.m,
sprand.m, sprandsym.m, spstats.m, spy.m, svds.m, treelayout.m, bessel.m,
beta.m, betaln.m, factor.m, factorial.m, isprime.m, lcm.m, legendre.m,
nchoosek.m, nthroot.m, perms.m, pow2.m, primes.m, reallog.m, realpow.m,
realsqrt.m, hadamard.m, hankel.m, hilb.m, invhilb.m, magic.m, rosser.m,
vander.m, __finish__.m, center.m, cloglog.m, corr.m, cov.m, gls.m, histc.m,
iqr.m, kendall.m, kurtosis.m, logit.m, mahalanobis.m, mean.m, meansq.m,
median.m, mode.m, moment.m, ols.m, ppplot.m, prctile.m, probit.m, quantile.m,
range.m, ranks.m, run_count.m, runlength.m, skewness.m, spearman.m,
statistics.m, std.m, table.m, var.m, zscore.m, betacdf.m, betainv.m, betapdf.m,
betarnd.m, binocdf.m, binoinv.m, binopdf.m, binornd.m, cauchy_cdf.m,
cauchy_inv.m, cauchy_pdf.m, cauchy_rnd.m, chi2cdf.m, chi2inv.m, chi2pdf.m,
chi2rnd.m, discrete_cdf.m, discrete_inv.m, discrete_pdf.m, discrete_rnd.m,
empirical_cdf.m, empirical_inv.m, empirical_pdf.m, empirical_rnd.m, expcdf.m,
expinv.m, exppdf.m, exprnd.m, fcdf.m, finv.m, fpdf.m, frnd.m, gamcdf.m,
gaminv.m, gampdf.m, gamrnd.m, geocdf.m, geoinv.m, geopdf.m, geornd.m,
hygecdf.m, hygeinv.m, hygepdf.m, hygernd.m, kolmogorov_smirnov_cdf.m,
laplace_cdf.m, laplace_inv.m, laplace_pdf.m, laplace_rnd.m, logistic_cdf.m,
logistic_inv.m, logistic_pdf.m, logistic_rnd.m, logncdf.m, logninv.m,
lognpdf.m, lognrnd.m, nbincdf.m, nbininv.m, nbinpdf.m, nbinrnd.m, normcdf.m,
norminv.m, normpdf.m, normrnd.m, poisscdf.m, poissinv.m, poisspdf.m,
poissrnd.m, stdnormal_cdf.m, stdnormal_inv.m, stdnormal_pdf.m, stdnormal_rnd.m,
tcdf.m, tinv.m, tpdf.m, trnd.m, unidcdf.m, unidinv.m, unidpdf.m, unidrnd.m,
unifcdf.m, unifinv.m, unifpdf.m, unifrnd.m, wblcdf.m, wblinv.m, wblpdf.m,
wblrnd.m, kolmogorov_smirnov_test.m, kruskal_wallis_test.m, base2dec.m,
bin2dec.m, blanks.m, cstrcat.m, deblank.m, dec2base.m, dec2bin.m, dec2hex.m,
findstr.m, hex2dec.m, index.m, isletter.m, mat2str.m, rindex.m, str2num.m,
strcat.m, strjust.m, strmatch.m, strsplit.m, strtok.m, strtrim.m, strtrunc.m,
substr.m, validatestring.m, demo.m, example.m, fail.m, speed.m, addtodate.m,
asctime.m, clock.m, ctime.m, date.m, datenum.m, datetick.m, datevec.m,
eomday.m, etime.m, is_leap_year.m, now.m:
Use Octave coding conventions in all m-file %!test blocks
author | Rik <octave@nomad.inbox5.com> |
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date | Mon, 13 Feb 2012 07:29:44 -0800 |
parents | 72c96de7a403 |
children | 31e2c4248664 |
rev | line source |
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1 ## Copyright (C) 2008-2012 Ben Abbott |
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2 ## |
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3 ## This file is part of Octave. |
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4 ## |
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5 ## Octave is free software; you can redistribute it and/or modify it |
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6 ## under the terms of the GNU General Public License as published by |
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7 ## the Free Software Foundation; either version 3 of the License, or (at |
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8 ## your option) any later version. |
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9 ## |
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10 ## Octave is distributed in the hope that it will be useful, but |
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 ## General Public License for more details. |
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14 ## |
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15 ## You should have received a copy of the GNU General Public License |
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16 ## along with Octave; see the file COPYING. If not, see |
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17 ## <http://www.gnu.org/licenses/>. |
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18 |
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19 ## -*- texinfo -*- |
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20 ## @deftypefn {Function File} {@var{q} =} prctile (@var{x}) |
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21 ## @deftypefnx {Function File} {@var{q} =} prctile (@var{x}, @var{p}) |
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22 ## @deftypefnx {Function File} {@var{q} =} prctile (@var{x}, @var{p}, @var{dim}) |
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23 ## For a sample @var{x}, compute the quantiles, @var{q}, corresponding |
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24 ## to the cumulative probability values, @var{p}, in percent. All non-numeric |
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25 ## values (NaNs) of @var{x} are ignored. |
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26 ## |
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27 ## If @var{x} is a matrix, compute the percentiles for each column and |
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28 ## return them in a matrix, such that the i-th row of @var{y} contains the |
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29 ## @var{p}(i)th percentiles of each column of @var{x}. |
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30 ## |
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31 ## If @var{p} is unspecified, return the quantiles for @code{[0 25 50 75 100]}. |
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32 ## The optional argument @var{dim} determines the dimension along which |
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33 ## the percentiles are calculated. If @var{dim} is omitted, and @var{x} is |
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34 ## a vector or matrix, it defaults to 1 (column-wise quantiles). When |
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35 ## @var{x} is an N-D array, @var{dim} defaults to the first non-singleton |
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36 ## dimension. |
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37 ## @seealso{quantile} |
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38 ## @end deftypefn |
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39 |
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40 ## Author: Ben Abbott <bpabbott@mac.com> |
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41 ## Description: Matlab style prctile function. |
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42 |
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43 function q = prctile (x, p = [], dim) |
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44 |
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45 if (nargin < 1 || nargin > 3) |
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46 print_usage (); |
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47 endif |
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48 |
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49 if (! (isnumeric (x) || islogical (x))) |
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50 error ("prctile: X must be a numeric vector or matrix"); |
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51 endif |
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52 |
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53 if (isempty (p)) |
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54 p = [0, 25, 50, 75, 100]; |
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55 endif |
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56 |
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57 if (! (isnumeric (p) && isvector (p))) |
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58 error ("prctile: P must be a numeric vector"); |
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59 endif |
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60 |
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61 nd = ndims (x); |
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62 if (nargin == 2) |
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63 if (nd == 2) |
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64 ## If a matrix or vector, always use 1st dimension. |
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65 dim = 1; |
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66 else |
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67 ## If an N-d array, find the first non-singleton dimension. |
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68 (dim = find (sz > 1, 1)) || (dim = 1); |
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69 endif |
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70 else |
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71 if (!(isscalar (dim) && dim == fix (dim)) |
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72 || !(1 <= dim && dim <= nd)) |
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73 error ("prctile: DIM must be an integer and a valid dimension"); |
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74 endif |
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75 endif |
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76 |
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77 ## Convert from percent to decimal. |
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78 p /= 100; |
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79 |
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80 q = quantile (x, p, dim); |
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81 |
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82 endfunction |
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83 |
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84 |
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85 %!test |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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86 %! pct = 50; |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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87 %! q = prctile (1:4, pct, 1); |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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88 %! qa = [1, 2, 3, 4]; |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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89 %! assert (q, qa); |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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|
90 %! q = prctile (1:4, pct, 2); |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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91 %! qa = 2.5000; |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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|
92 %! assert (q, qa); |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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|
93 |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
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94 %!test |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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95 %! pct = 50; |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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96 %! x = [0.1126, 0.1148, 0.0521, 0.2364, 0.1393 |
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97 %! 0.1718, 0.7273, 0.2041, 0.4531, 0.1585 |
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parents:
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98 %! 0.2795, 0.7978, 0.3296, 0.5567, 0.7307 |
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Ben Abbott <bpabbott@mac.com>
parents:
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99 %! 0.4288, 0.8753, 0.6477, 0.6287, 0.8165 |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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100 %! 0.9331, 0.9312, 0.9635, 0.7796, 0.8461]; |
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101 %! tol = 0.0001; |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
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102 %! q = prctile (x, pct, 1); |
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103 %! qa = [0.2795, 0.7978, 0.3296, 0.5567, 0.7307]; |
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104 %! assert (q, qa, tol); |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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105 %! q = prctile (x, pct, 2); |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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106 %! qa = [0.1148; 0.2041; 0.5567; 0.6477; 0.9312]; |
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107 %! assert (q, qa, tol); |
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108 |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
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109 %!test |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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110 %! pct = 50; |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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111 %! tol = 0.0001; |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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112 %! x = [0.1126, 0.1148, 0.0521, 0.2364, 0.1393 |
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Ben Abbott <bpabbott@mac.com>
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113 %! 0.1718, 0.7273, 0.2041, 0.4531, 0.1585 |
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114 %! 0.2795, 0.7978, 0.3296, 0.5567, 0.7307 |
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115 %! 0.4288, 0.8753, 0.6477, 0.6287, 0.8165 |
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116 %! 0.9331, 0.9312, 0.9635, 0.7796, 0.8461]; |
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Ben Abbott <bpabbott@mac.com>
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117 %! x(5,5) = Inf; |
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Ben Abbott <bpabbott@mac.com>
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118 %! q = prctile (x, pct, 1); |
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Ben Abbott <bpabbott@mac.com>
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119 %! qa = [0.2795, 0.7978, 0.3296, 0.5567, 0.7307]; |
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120 %! assert (q, qa, tol); |
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Ben Abbott <bpabbott@mac.com>
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121 %! x(5,5) = -Inf; |
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Ben Abbott <bpabbott@mac.com>
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122 %! q = prctile (x, pct, 1); |
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123 %! qa = [0.2795, 0.7978, 0.3296, 0.5567, 0.1585]; |
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124 %! assert (q, qa, tol); |
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Ben Abbott <bpabbott@mac.com>
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125 %! x(1,1) = Inf; |
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126 %! q = prctile (x, pct, 1); |
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127 %! qa = [0.4288, 0.7978, 0.3296, 0.5567, 0.1585]; |
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128 %! assert (q, qa, tol); |
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|
129 |
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130 %!test |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
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|
131 %! pct = 50; |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
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132 %! tol = 0.0001; |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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133 %! x = [0.1126, 0.1148, 0.0521, 0.2364, 0.1393 |
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134 %! 0.1718, 0.7273, 0.2041, 0.4531, 0.1585 |
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135 %! 0.2795, 0.7978, 0.3296, 0.5567, 0.7307 |
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136 %! 0.4288, 0.8753, 0.6477, 0.6287, 0.8165 |
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137 %! 0.9331, 0.9312, 0.9635, 0.7796, 0.8461]; |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
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138 %! x(3,3) = Inf; |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
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|
139 %! q = prctile (x, pct, 1); |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
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140 %! qa = [0.2795, 0.7978, 0.6477, 0.5567, 0.7307]; |
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Modified statistics to calculate consistent median.
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|
141 %! assert (q, qa, tol); |
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Modified statistics to calculate consistent median.
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|
142 %! q = prctile (x, pct, 2); |
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Modified statistics to calculate consistent median.
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|
143 %! qa = [0.1148; 0.2041; 0.7307; 0.6477; 0.9312]; |
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Modified statistics to calculate consistent median.
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|
144 %! assert (q, qa, tol); |
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Modified statistics to calculate consistent median.
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|
145 |
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Ben Abbott <bpabbott@mac.com>
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|
146 %!test |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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|
147 %! pct = 50; |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
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|
148 %! tol = 0.0001; |
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Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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|
149 %! x = [0.1126, 0.1148, 0.0521, 0.2364, 0.1393 |
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Ben Abbott <bpabbott@mac.com>
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|
150 %! 0.1718, 0.7273, 0.2041, 0.4531, 0.1585 |
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|
151 %! 0.2795, 0.7978, 0.3296, 0.5567, 0.7307 |
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parents:
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|
152 %! 0.4288, 0.8753, 0.6477, 0.6287, 0.8165 |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
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|
153 %! 0.9331, 0.9312, 0.9635, 0.7796, 0.8461]; |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
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|
154 %! x(5,5) = NaN; |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
diff
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|
155 %! q = prctile (x, pct, 2); |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
diff
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|
156 %! qa = [0.1148; 0.2041; 0.5567; 0.6477; 0.9322]; |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
diff
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|
157 %! assert (q, qa, tol); |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
diff
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|
158 %! x(1,1) = NaN; |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
diff
changeset
|
159 %! q = prctile (x, pct, 2); |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
diff
changeset
|
160 %! qa = [0.1270; 0.2041; 0.5567; 0.6477; 0.9322]; |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
diff
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|
161 %! assert (q, qa, tol); |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
diff
changeset
|
162 %! x(3,3) = NaN; |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
diff
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|
163 %! q = prctile (x, pct, 2); |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
diff
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|
164 %! qa = [0.1270; 0.2041; 0.6437; 0.6477; 0.9322]; |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
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|
165 %! assert (q, qa, tol); |
0220da981c2a
Modified statistics to calculate consistent median.
Ben Abbott <bpabbott@mac.com>
parents:
diff
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|
166 |
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167 %% Test input validation |
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168 %!error prctile () |
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169 %!error prctile (1, 2, 3, 4) |
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170 %!error prctile (['A'; 'B'], 10) |
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171 %!error prctile (1:10, [true, false]) |
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172 %!error prctile (1:10, ones (2,2)) |
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173 %!error prctile (1, 1, 1.5) |
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174 %!error prctile (1, 1, 0) |
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175 %!error prctile (1, 1, 3) |
14363
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Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
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176 |