Mercurial > octave
annotate scripts/statistics/distributions/poisscdf.m @ 20174:d9341b422488 stable
doc: Update more docstrings to have one sentence summary as first line.
Reviewed statistics/ and @ftp/ in scripts directory.
* scripts/@ftp/ascii.m, scripts/@ftp/binary.m, scripts/@ftp/cd.m,
scripts/@ftp/dir.m, scripts/@ftp/ftp.m, scripts/@ftp/mget.m,
scripts/@ftp/mput.m, scripts/statistics/base/center.m,
scripts/statistics/base/cloglog.m, scripts/statistics/base/cov.m,
scripts/statistics/base/gls.m, scripts/statistics/base/histc.m,
scripts/statistics/base/iqr.m, scripts/statistics/base/kendall.m,
scripts/statistics/base/kurtosis.m, scripts/statistics/base/logit.m,
scripts/statistics/base/lscov.m, scripts/statistics/base/mahalanobis.m,
scripts/statistics/base/mean.m, scripts/statistics/base/meansq.m,
scripts/statistics/base/median.m, scripts/statistics/base/mode.m,
scripts/statistics/base/moment.m, scripts/statistics/base/ols.m,
scripts/statistics/base/ppplot.m, scripts/statistics/base/prctile.m,
scripts/statistics/base/probit.m, scripts/statistics/base/range.m,
scripts/statistics/base/ranks.m, scripts/statistics/base/run_count.m,
scripts/statistics/base/runlength.m, scripts/statistics/base/skewness.m,
scripts/statistics/base/spearman.m, scripts/statistics/base/statistics.m,
scripts/statistics/base/std.m, scripts/statistics/base/table.m,
scripts/statistics/base/var.m, scripts/statistics/base/zscore.m,
scripts/statistics/distributions/betainv.m,
scripts/statistics/distributions/binoinv.m,
scripts/statistics/distributions/binopdf.m,
scripts/statistics/distributions/cauchy_cdf.m,
scripts/statistics/distributions/cauchy_inv.m,
scripts/statistics/distributions/cauchy_pdf.m,
scripts/statistics/distributions/chi2cdf.m,
scripts/statistics/distributions/chi2inv.m,
scripts/statistics/distributions/chi2pdf.m,
scripts/statistics/distributions/discrete_cdf.m,
scripts/statistics/distributions/discrete_inv.m,
scripts/statistics/distributions/discrete_pdf.m,
scripts/statistics/distributions/empirical_cdf.m,
scripts/statistics/distributions/empirical_inv.m,
scripts/statistics/distributions/empirical_pdf.m,
scripts/statistics/distributions/expcdf.m,
scripts/statistics/distributions/expinv.m,
scripts/statistics/distributions/exppdf.m,
scripts/statistics/distributions/finv.m,
scripts/statistics/distributions/fpdf.m,
scripts/statistics/distributions/gamcdf.m,
scripts/statistics/distributions/gaminv.m,
scripts/statistics/distributions/gampdf.m,
scripts/statistics/distributions/geoinv.m,
scripts/statistics/distributions/geopdf.m,
scripts/statistics/distributions/hygecdf.m,
scripts/statistics/distributions/hygeinv.m,
scripts/statistics/distributions/hygepdf.m,
scripts/statistics/distributions/kolmogorov_smirnov_cdf.m,
scripts/statistics/distributions/laplace_cdf.m,
scripts/statistics/distributions/laplace_inv.m,
scripts/statistics/distributions/laplace_pdf.m,
scripts/statistics/distributions/logistic_inv.m,
scripts/statistics/distributions/logncdf.m,
scripts/statistics/distributions/logninv.m,
scripts/statistics/distributions/lognpdf.m,
scripts/statistics/distributions/nbincdf.m,
scripts/statistics/distributions/nbininv.m,
scripts/statistics/distributions/nbinpdf.m,
scripts/statistics/distributions/nbinrnd.m,
scripts/statistics/distributions/normcdf.m,
scripts/statistics/distributions/norminv.m,
scripts/statistics/distributions/normpdf.m,
scripts/statistics/distributions/poisscdf.m,
scripts/statistics/distributions/poissinv.m,
scripts/statistics/distributions/poisspdf.m,
scripts/statistics/distributions/stdnormal_cdf.m,
scripts/statistics/distributions/stdnormal_pdf.m,
scripts/statistics/distributions/tcdf.m,
scripts/statistics/distributions/tinv.m,
scripts/statistics/distributions/tpdf.m,
scripts/statistics/distributions/unidcdf.m,
scripts/statistics/distributions/unidinv.m,
scripts/statistics/distributions/unidpdf.m,
scripts/statistics/distributions/unidrnd.m,
scripts/statistics/distributions/unifcdf.m,
scripts/statistics/distributions/unifinv.m,
scripts/statistics/distributions/wblcdf.m,
scripts/statistics/distributions/wblinv.m,
scripts/statistics/distributions/wblpdf.m,
scripts/statistics/distributions/wienrnd.m,
scripts/statistics/models/private/logistic_regression_derivatives.m,
scripts/statistics/models/private/logistic_regression_likelihood.m,
scripts/statistics/tests/anova.m,
scripts/statistics/tests/chisquare_test_homogeneity.m,
scripts/statistics/tests/chisquare_test_independence.m,
scripts/statistics/tests/cor_test.m,
scripts/statistics/tests/f_test_regression.m,
scripts/statistics/tests/hotelling_test.m,
scripts/statistics/tests/kolmogorov_smirnov_test.m,
scripts/statistics/tests/kolmogorov_smirnov_test_2.m,
scripts/statistics/tests/kruskal_wallis_test.m,
scripts/statistics/tests/manova.m, scripts/statistics/tests/mcnemar_test.m,
scripts/statistics/tests/prop_test_2.m, scripts/statistics/tests/run_test.m,
scripts/statistics/tests/sign_test.m, scripts/statistics/tests/t_test.m,
scripts/statistics/tests/t_test_2.m,
scripts/statistics/tests/t_test_regression.m,
scripts/statistics/tests/u_test.m, scripts/statistics/tests/var_test.m,
scripts/statistics/tests/welch_test.m,
scripts/statistics/tests/wilcoxon_test.m, scripts/statistics/tests/z_test.m,
scripts/statistics/tests/z_test_2.m:
Update more docstrings to have one sentence summary as first line.
author | Rik <rik@octave.org> |
---|---|
date | Sun, 10 May 2015 16:07:41 -0700 |
parents | 9fc020886ae9 |
children | 516bb87ea72e |
rev | line source |
---|---|
14138
72c96de7a403
maint: update copyright notices for 2012
John W. Eaton <jwe@octave.org>
parents:
13171
diff
changeset
|
1 ## Copyright (C) 2012 Rik Wehbring |
19697
4197fc428c7d
maint: Update copyright notices for 2015.
John W. Eaton <jwe@octave.org>
parents:
17744
diff
changeset
|
2 ## Copyright (C) 1995-2015 Kurt Hornik |
5410 | 3 ## |
4 ## This file is part of Octave. | |
5 ## | |
6 ## Octave is free software; you can redistribute it and/or modify it | |
7 ## under the terms of the GNU General Public License as published by | |
7016 | 8 ## the Free Software Foundation; either version 3 of the License, or (at |
9 ## your option) any later version. | |
5410 | 10 ## |
11 ## Octave is distributed in the hope that it will be useful, but | |
12 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 ## General Public License for more details. | |
15 ## | |
16 ## You should have received a copy of the GNU General Public License | |
7016 | 17 ## along with Octave; see the file COPYING. If not, see |
18 ## <http://www.gnu.org/licenses/>. | |
5410 | 19 |
20 ## -*- texinfo -*- | |
5411 | 21 ## @deftypefn {Function File} {} poisscdf (@var{x}, @var{lambda}) |
20174
d9341b422488
doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents:
19833
diff
changeset
|
22 ## For each element of @var{x}, compute the cumulative distribution function |
d9341b422488
doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents:
19833
diff
changeset
|
23 ## (CDF) at @var{x} of the Poisson distribution with parameter @var{lambda}. |
5410 | 24 ## @end deftypefn |
25 | |
5428 | 26 ## Author: KH <Kurt.Hornik@wu-wien.ac.at> |
5410 | 27 ## Description: CDF of the Poisson distribution |
28 | |
11469
c776f063fefe
Overhaul m-script files to use common variable name between code and documentation.
Rik <octave@nomad.inbox5.com>
parents:
7017
diff
changeset
|
29 function cdf = poisscdf (x, lambda) |
5410 | 30 |
31 if (nargin != 2) | |
6046 | 32 print_usage (); |
5410 | 33 endif |
34 | |
19833
9fc020886ae9
maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
19697
diff
changeset
|
35 if (! isscalar (lambda)) |
11469
c776f063fefe
Overhaul m-script files to use common variable name between code and documentation.
Rik <octave@nomad.inbox5.com>
parents:
7017
diff
changeset
|
36 [retval, x, lambda] = common_size (x, lambda); |
5410 | 37 if (retval > 0) |
13171
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
38 error ("poisscdf: X and LAMBDA must be of common size or scalars"); |
5410 | 39 endif |
40 endif | |
41 | |
13171
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
42 if (iscomplex (x) || iscomplex (lambda)) |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
43 error ("poisscdf: X and LAMBDA must not be complex"); |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
44 endif |
5410 | 45 |
13171
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
46 if (isa (x, "single") || isa (lambda, "single")) |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
47 cdf = zeros (size (x), "single"); |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
48 else |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
49 cdf = zeros (size (x)); |
5410 | 50 endif |
51 | |
13171
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
52 k = isnan (x) | !(lambda > 0); |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
53 cdf(k) = NaN; |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
54 |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
55 k = (x == Inf) & (lambda > 0); |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
56 cdf(k) = 1; |
5410 | 57 |
13171
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
58 k = (x >= 0) & (x < Inf) & (lambda > 0); |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
59 if (isscalar (lambda)) |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
60 cdf(k) = 1 - gammainc (lambda, floor (x(k)) + 1); |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
61 else |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
62 cdf(k) = 1 - gammainc (lambda(k), floor (x(k)) + 1); |
5410 | 63 endif |
64 | |
65 endfunction | |
13171
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
66 |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
67 |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
68 %!shared x,y |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
69 %! x = [-1 0 1 2 Inf]; |
14363
f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
70 %! y = [0, gammainc(1, (x(2:4) +1), "upper"), 1]; |
f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
71 %!assert (poisscdf (x, ones (1,5)), y) |
f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
72 %!assert (poisscdf (x, 1), y) |
f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
73 %!assert (poisscdf (x, [1 0 NaN 1 1]), [y(1) NaN NaN y(4:5)]) |
f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
74 %!assert (poisscdf ([x(1:2) NaN Inf x(5)], 1), [y(1:2) NaN 1 y(5)]) |
13171
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
75 |
19833
9fc020886ae9
maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
19697
diff
changeset
|
76 ## Test class of input preserved |
14363
f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
77 %!assert (poisscdf ([x, NaN], 1), [y, NaN]) |
f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
78 %!assert (poisscdf (single ([x, NaN]), 1), single ([y, NaN]), eps ("single")) |
f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
79 %!assert (poisscdf ([x, NaN], single (1)), single ([y, NaN]), eps ("single")) |
13171
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
80 |
19833
9fc020886ae9
maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
19697
diff
changeset
|
81 ## Test input validation |
13171
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
82 %!error poisscdf () |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
83 %!error poisscdf (1) |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
84 %!error poisscdf (1,2,3) |
14363
f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
85 %!error poisscdf (ones (3), ones (2)) |
f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
86 %!error poisscdf (ones (2), ones (3)) |
13171
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
87 %!error poisscdf (i, 2) |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
88 %!error poisscdf (2, i) |
19b9f17d22af
Overhaul of statistical distribution functions
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
89 |