Mercurial > octave
view libinterp/corefcn/betainc.cc @ 21200:fcac5dbbf9ed
maint: Indent #ifdef blocks in libinterp.
* builtins.h, Cell.cc, __contourc__.cc, __dispatch__.cc, __dsearchn__.cc,
__ichol__.cc, __ilu__.cc, __lin_interpn__.cc, __pchip_deriv__.cc, __qp__.cc,
balance.cc, besselj.cc, betainc.cc, bitfcns.cc, bsxfun.cc,
c-file-ptr-stream.cc, c-file-ptr-stream.h, cellfun.cc, colloc.cc,
comment-list.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, debug.cc,
defaults.cc, defaults.in.h, defun-dld.h, defun.cc, defun.h, det.cc, dirfns.cc,
display.cc, dlmread.cc, dot.cc, dynamic-ld.cc, eig.cc, ellipj.cc, error.cc,
errwarn.cc, event-queue.cc, fft.cc, fft2.cc, fftn.cc, file-io.cc, filter.cc,
find.cc, gammainc.cc, gcd.cc, getgrent.cc, getpwent.cc, getrusage.cc,
givens.cc, gl-render.cc, gl2ps-print.cc, graphics.cc, graphics.in.h, gripes.cc,
hash.cc, help.cc, hess.cc, hex2num.cc, input.cc, inv.cc, jit-ir.cc,
jit-typeinfo.cc, jit-util.cc, jit-util.h, kron.cc, load-path.cc, load-save.cc,
lookup.cc, ls-ascii-helper.cc, ls-hdf5.cc, ls-mat-ascii.cc, ls-mat4.cc,
ls-mat5.cc, ls-oct-binary.cc, ls-oct-text.cc, ls-oct-text.h, ls-utils.cc,
ls-utils.h, lsode.cc, lu.cc, luinc.cc, mappers.cc, matrix_type.cc, max.cc,
mex.h, mexproto.h, mgorth.cc, nproc.cc, oct-errno.in.cc, oct-fstrm.cc,
oct-hdf5-types.cc, oct-hdf5.h, oct-hist.cc, oct-iostrm.cc, oct-lvalue.cc,
oct-map.cc, oct-prcstrm.cc, oct-procbuf.cc, oct-stream.cc, oct-strstrm.cc,
octave-link.cc, ordschur.cc, pager.cc, pinv.cc, pr-output.cc, procstream.cc,
profiler.cc, psi.cc, pt-jit.cc, quad.cc, quadcc.cc, qz.cc, rand.cc, rcond.cc,
regexp.cc, schur.cc, sighandlers.cc, sparse-xdiv.cc, sparse-xpow.cc, sparse.cc,
spparms.cc, sqrtm.cc, str2double.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc,
sylvester.cc, symtab.cc, syscalls.cc, sysdep.cc, sysdep.h, time.cc, toplev.cc,
tril.cc, tsearch.cc, txt-eng-ft.cc, txt-eng.cc, typecast.cc, urlwrite.cc,
utils.cc, variables.cc, xdiv.cc, xnorm.cc, xpow.cc, zfstream.cc,
__delaunayn__.cc, __eigs__.cc, __fltk_uigetfile__.cc, __glpk__.cc,
__init_fltk__.cc, __init_gnuplot__.cc, __magick_read__.cc, __osmesa_print__.cc,
__voronoi__.cc, amd.cc, audiodevinfo.cc, audioread.cc, ccolamd.cc, chol.cc,
colamd.cc, convhulln.cc, dmperm.cc, fftw.cc, oct-qhull.h, qr.cc, symbfact.cc,
symrcm.cc, oct-conf.in.cc, ov-base-diag.cc, ov-base-int.cc, ov-base-mat.cc,
ov-base-scalar.cc, ov-base-sparse.cc, ov-base.cc, ov-bool-mat.cc,
ov-bool-sparse.cc, ov-bool.cc, ov-builtin.cc, ov-cell.cc, ov-ch-mat.cc,
ov-class.cc, ov-classdef.cc, ov-colon.cc, ov-complex.cc, ov-cs-list.cc,
ov-cx-diag.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-dld-fcn.cc, ov-fcn-handle.cc,
ov-fcn-inline.cc, ov-fcn.cc, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-diag.cc,
ov-flt-cx-mat.cc, ov-flt-re-diag.cc, ov-flt-re-mat.cc, ov-int16.cc,
ov-int32.cc, ov-int64.cc, ov-int8.cc, ov-java.cc, ov-lazy-idx.cc,
ov-mex-fcn.cc, ov-null-mat.cc, ov-oncleanup.cc, ov-perm.cc, ov-range.cc,
ov-re-diag.cc, ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc, ov-str-mat.cc,
ov-struct.cc, ov-typeinfo.cc, ov-uint16.cc, ov-uint32.cc, ov-uint64.cc,
ov-uint8.cc, ov-usr-fcn.cc, ov.cc, ovl.cc, octave.cc, op-b-b.cc, op-b-bm.cc,
op-b-sbm.cc, op-bm-b.cc, op-bm-bm.cc, op-bm-sbm.cc, op-cdm-cdm.cc, op-cell.cc,
op-chm.cc, op-class.cc, op-cm-cm.cc, op-cm-cs.cc, op-cm-m.cc, op-cm-s.cc,
op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc, op-cs-s.cc,
op-cs-scm.cc, op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc,
op-dm-template.cc, op-dms-template.cc, op-double-conv.cc, op-fcdm-fcdm.cc,
op-fcdm-fdm.cc, op-fcm-fcm.cc, op-fcm-fcs.cc, op-fcm-fm.cc, op-fcm-fs.cc,
op-fcn.cc, op-fcs-fcm.cc, op-fcs-fcs.cc, op-fcs-fm.cc, op-fcs-fs.cc,
op-fdm-fdm.cc, op-float-conv.cc, op-fm-fcm.cc, op-fm-fcs.cc, op-fm-fm.cc,
op-fm-fs.cc, op-fs-fcm.cc, op-fs-fcs.cc, op-fs-fm.cc, op-fs-fs.cc,
op-i16-i16.cc, op-i32-i32.cc, op-i64-i64.cc, op-i8-i8.cc, op-int-concat.cc,
op-int-conv.cc, op-m-cm.cc, op-m-cs.cc, op-m-m.cc, op-m-s.cc, op-m-scm.cc,
op-m-sm.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc, op-pm-template.cc,
op-range.cc, op-s-cm.cc, op-s-cs.cc, op-s-m.cc, op-s-s.cc, op-s-scm.cc,
op-s-sm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-sbm-sbm.cc, op-scm-cm.cc,
op-scm-cs.cc, op-scm-m.cc, op-scm-s.cc, op-scm-scm.cc, op-scm-sm.cc,
op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc, op-sm-s.cc, op-sm-scm.cc, op-sm-sm.cc,
op-str-m.cc, op-str-s.cc, op-str-str.cc, op-struct.cc, op-ui16-ui16.cc,
op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc, pt-arg-list.cc,
pt-array-list.cc, pt-assign.cc, pt-binop.cc, pt-bp.cc, pt-cbinop.cc,
pt-cell.cc, pt-check.cc, pt-classdef.cc, pt-cmd.cc, pt-colon.cc, pt-colon.h,
pt-const.cc, pt-decl.cc, pt-eval.cc, pt-except.cc, pt-exp.cc, pt-fcn-handle.cc,
pt-funcall.cc, pt-id.cc, pt-idx.cc, pt-jump.cc, pt-loop.cc, pt-mat.cc,
pt-misc.cc, pt-pr-code.cc, pt-select.cc, pt-stmt.cc, pt-unop.cc, pt.cc,
token.cc, Array-jit.cc, Array-os.cc, Array-sym.cc, Array-tc.cc, version.cc:
Indent #ifdef blocks in libinterp.
author | Rik <rik@octave.org> |
---|---|
date | Fri, 05 Feb 2016 16:29:08 -0800 |
parents | e39e05d90788 |
children | 40de9f8f23a6 |
line wrap: on
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/* Copyright (C) 1997-2015 John W. Eaton This file is part of Octave. Octave 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 of the License, or (at your option) any later version. Octave 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 Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif #include "lo-specfun.h" #include "defun.h" #include "error.h" #include "errwarn.h" #include "ovl.h" #include "utils.h" DEFUN (betainc, args, , "-*- texinfo -*-\n\ @deftypefn {} {} betainc (@var{x}, @var{a}, @var{b})\n\ Compute the regularized incomplete Beta function.\n\ \n\ The regularized incomplete Beta function is defined by\n\ @tex\n\ $$\n\ I (x, a, b) = {1 \\over {B (a, b)}} \\int_0^x t^{(a-z)} (1-t)^{(b-1)} dt.\n\ $$\n\ @end tex\n\ @ifnottex\n\ @c Set example in small font to prevent overfull line\n\ \n\ @smallexample\n\ @group\n\ x\n\ 1 /\n\ betainc (x, a, b) = ----------- | t^(a-1) (1-t)^(b-1) dt.\n\ beta (a, b) /\n\ t=0\n\ @end group\n\ @end smallexample\n\ \n\ @end ifnottex\n\ \n\ If @var{x} has more than one component, both @var{a} and @var{b} must be\n\ scalars. If @var{x} is a scalar, @var{a} and @var{b} must be of\n\ compatible dimensions.\n\ @seealso{betaincinv, beta, betaln}\n\ @end deftypefn") { if (args.length () != 3) print_usage (); octave_value retval; octave_value x_arg = args(0); octave_value a_arg = args(1); octave_value b_arg = args(2); // FIXME: Can we make a template version of the duplicated code below if (x_arg.is_single_type () || a_arg.is_single_type () || b_arg.is_single_type ()) { if (x_arg.is_scalar_type ()) { float x = x_arg.float_value (); if (a_arg.is_scalar_type ()) { float a = a_arg.float_value (); if (b_arg.is_scalar_type ()) { float b = b_arg.float_value (); retval = betainc (x, a, b); } else { Array<float> b = b_arg.float_array_value (); retval = betainc (x, a, b); } } else { Array<float> a = a_arg.float_array_value (); if (b_arg.is_scalar_type ()) { float b = b_arg.float_value (); retval = betainc (x, a, b); } else { Array<float> b = b_arg.float_array_value (); retval = betainc (x, a, b); } } } else { Array<float> x = x_arg.float_array_value (); if (a_arg.is_scalar_type ()) { float a = a_arg.float_value (); if (b_arg.is_scalar_type ()) { float b = b_arg.float_value (); retval = betainc (x, a, b); } else { Array<float> b = b_arg.float_array_value (); retval = betainc (x, a, b); } } else { Array<float> a = a_arg.float_array_value (); if (b_arg.is_scalar_type ()) { float b = b_arg.float_value (); retval = betainc (x, a, b); } else { Array<float> b = b_arg.float_array_value (); retval = betainc (x, a, b); } } } } else { if (x_arg.is_scalar_type ()) { double x = x_arg.double_value (); if (a_arg.is_scalar_type ()) { double a = a_arg.double_value (); if (b_arg.is_scalar_type ()) { double b = b_arg.double_value (); retval = betainc (x, a, b); } else { Array<double> b = b_arg.array_value (); retval = betainc (x, a, b); } } else { Array<double> a = a_arg.array_value (); if (b_arg.is_scalar_type ()) { double b = b_arg.double_value (); retval = betainc (x, a, b); } else { Array<double> b = b_arg.array_value (); retval = betainc (x, a, b); } } } else { Array<double> x = x_arg.array_value (); if (a_arg.is_scalar_type ()) { double a = a_arg.double_value (); if (b_arg.is_scalar_type ()) { double b = b_arg.double_value (); retval = betainc (x, a, b); } else { Array<double> b = b_arg.array_value (); retval = betainc (x, a, b); } } else { Array<double> a = a_arg.array_value (); if (b_arg.is_scalar_type ()) { double b = b_arg.double_value (); retval = betainc (x, a, b); } else { Array<double> b = b_arg.array_value (); retval = betainc (x, a, b); } } } } return retval; } /* ## Double precision %!test %! a = [1, 1.5, 2, 3]; %! b = [4, 3, 2, 1]; %! v1 = betainc (1,a,b); %! v2 = [1,1,1,1]; %! x = [.2, .4, .6, .8]; %! v3 = betainc (x, a, b); %! v4 = 1 - betainc (1.-x, b, a); %! assert (v1, v2, sqrt (eps)); %! assert (v3, v4, sqrt (eps)); ## Single precision %!test %! a = single ([1, 1.5, 2, 3]); %! b = single ([4, 3, 2, 1]); %! v1 = betainc (1,a,b); %! v2 = single ([1,1,1,1]); %! x = single ([.2, .4, .6, .8]); %! v3 = betainc (x, a, b); %! v4 = 1 - betainc (1.-x, b, a); %! assert (v1, v2, sqrt (eps ("single"))); %! assert (v3, v4, sqrt (eps ("single"))); ## Mixed double/single precision %!test %! a = single ([1, 1.5, 2, 3]); %! b = [4, 3, 2, 1]; %! v1 = betainc (1,a,b); %! v2 = single ([1,1,1,1]); %! x = [.2, .4, .6, .8]; %! v3 = betainc (x, a, b); %! v4 = 1-betainc (1.-x, b, a); %! assert (v1, v2, sqrt (eps ("single"))); %! assert (v3, v4, sqrt (eps ("single"))); %!error betainc () %!error betainc (1) %!error betainc (1,2) %!error betainc (1,2,3,4) */ DEFUN (betaincinv, args, , "-*- texinfo -*-\n\ @deftypefn {} {} betaincinv (@var{y}, @var{a}, @var{b})\n\ Compute the inverse of the incomplete Beta function.\n\ \n\ The inverse is the value @var{x} such that\n\ \n\ @example\n\ @var{y} == betainc (@var{x}, @var{a}, @var{b})\n\ @end example\n\ @seealso{betainc, beta, betaln}\n\ @end deftypefn") { if (args.length () != 3) print_usage (); octave_value retval; octave_value x_arg = args(0); octave_value a_arg = args(1); octave_value b_arg = args(2); if (x_arg.is_scalar_type ()) { double x = x_arg.double_value (); if (a_arg.is_scalar_type ()) { double a = a_arg.double_value (); if (b_arg.is_scalar_type ()) { double b = b_arg.double_value (); retval = betaincinv (x, a, b); } else { Array<double> b = b_arg.array_value (); retval = betaincinv (x, a, b); } } else { Array<double> a = a_arg.array_value (); if (b_arg.is_scalar_type ()) { double b = b_arg.double_value (); retval = betaincinv (x, a, b); } else { Array<double> b = b_arg.array_value (); retval = betaincinv (x, a, b); } } } else { Array<double> x = x_arg.array_value (); if (a_arg.is_scalar_type ()) { double a = a_arg.double_value (); if (b_arg.is_scalar_type ()) { double b = b_arg.double_value (); retval = betaincinv (x, a, b); } else { Array<double> b = b_arg.array_value (); retval = betaincinv (x, a, b); } } else { Array<double> a = a_arg.array_value (); if (b_arg.is_scalar_type ()) { double b = b_arg.double_value (); retval = betaincinv (x, a, b); } else { Array<double> b = b_arg.array_value (); retval = betaincinv (x, a, b); } } } // FIXME: It would be better to have an algorithm for betaincinv which // accepted float inputs and returned float outputs. As it is, we do // extra work to calculate betaincinv to double precision and then throw // that precision away. if (x_arg.is_single_type () || a_arg.is_single_type () || b_arg.is_single_type ()) { retval = Array<float> (retval.array_value ()); } return retval; } /* %!assert (betaincinv ([0.875 0.6875], [1 2], 3), [0.5 0.5], sqrt (eps)) %!assert (betaincinv (0.5, 3, 3), 0.5, sqrt (eps)) %!assert (betaincinv (0.34375, 4, 3), 0.5, sqrt (eps)) %!assert (betaincinv (0.2265625, 5, 3), 0.5, sqrt (eps)) %!assert (betaincinv (0.14453125, 6, 3), 0.5, sqrt (eps)) %!assert (betaincinv (0.08984375, 7, 3), 0.5, sqrt (eps)) %!assert (betaincinv (0.0546875, 8, 3), 0.5, sqrt (eps)) %!assert (betaincinv (0.03271484375, 9, 3), 0.5, sqrt (eps)) %!assert (betaincinv (0.019287109375, 10, 3), 0.5, sqrt (eps)) ## Test class single as well %!assert (betaincinv ([0.875 0.6875], [1 2], single (3)), [0.5 0.5], sqrt (eps ("single"))) %!assert (betaincinv (0.5, 3, single (3)), 0.5, sqrt (eps ("single"))) %!assert (betaincinv (0.34375, 4, single (3)), 0.5, sqrt (eps ("single"))) ## Extreme values %!assert (betaincinv (0, 42, 42), 0, sqrt (eps)) %!assert (betaincinv (1, 42, 42), 1, sqrt (eps)) %!error betaincinv () %!error betaincinv (1, 2) */