YALMIP_OPTIONS Sets options for YALMIP.
OPT = YALMIP_OPTIONS
OPT = YALMIP_OPTIONS(OVERRIDES)
OPT = YALMIP_OPTIONS(OVERRIDES, FNAME)
OPT = YALMIP_OPTIONS(OVERRIDES, MPOPT)
Sets the values for the YALMIP options struct (sdpsettings) normally
passed to SOLVESDP.
Inputs are all optional, second argument must be either a string
(FNAME) or a struct (MPOPT):
OVERRIDES - struct containing values to override the defaults
FNAME - name of user-supplied function called after default
options are set to modify them. Calling syntax is:
MODIFIED_OPT = FNAME(DEFAULT_OPT);
MPOPT - MATPOWER options struct, uses the following fields:
verbose - used to set opt.verbose
yalmip.opts - struct containing values to use as OVERRIDES
yalmip.opt_fname - name of user-supplied function used as FNAME,
except with calling syntax:
MODIFIED_OPT = FNAME(DEFAULT_OPT, MPOPT);
Output is an sdpsettings struct to pass to SOLVESDP.
There are multiple ways of providing values to override the default
options. Their precedence and order of application are as follows:
With inputs OVERRIDES and FNAME
1. FNAME is called
2. OVERRIDES are applied
With inputs OVERRIDES and MPOPT
1. FNAME (from yalmip.opt_fname) is called
2. yalmip.opts (if not empty) are applied
3. OVERRIDES are applied
Example:
If yalmip.opt_fname = 'yalmip_user_options_3', then after setting the
default YALMIP options, YALMIP_OPTIONS will execute the following
user-defined function to allow option overrides:
opt = yalmip_user_options_3(opt, mpopt);
The contents of yalmip_user_options_3.m, could be something like:
function opt = yalmip_user_options_3(opt, mpopt)
opt.solver = 'sedumi';
opt.sedumi.eps = 0;
opt.sedumi.alg = 2;
opt.sedumi.free = 1;
opt.sedumi.stepdiff = 2;
See the YALMIP documentation (help sdpsettings) and the solver (e.g.,
SeDuMi, SDPT3, etc.) documentation for details.
See also SDPSETTINGS, MPOPTION.0001 function opt = yalmip_options(overrides, mpopt) 0002 %YALMIP_OPTIONS Sets options for YALMIP. 0003 % 0004 % OPT = YALMIP_OPTIONS 0005 % OPT = YALMIP_OPTIONS(OVERRIDES) 0006 % OPT = YALMIP_OPTIONS(OVERRIDES, FNAME) 0007 % OPT = YALMIP_OPTIONS(OVERRIDES, MPOPT) 0008 % 0009 % Sets the values for the YALMIP options struct (sdpsettings) normally 0010 % passed to SOLVESDP. 0011 % 0012 % Inputs are all optional, second argument must be either a string 0013 % (FNAME) or a struct (MPOPT): 0014 % 0015 % OVERRIDES - struct containing values to override the defaults 0016 % FNAME - name of user-supplied function called after default 0017 % options are set to modify them. Calling syntax is: 0018 % MODIFIED_OPT = FNAME(DEFAULT_OPT); 0019 % MPOPT - MATPOWER options struct, uses the following fields: 0020 % verbose - used to set opt.verbose 0021 % yalmip.opts - struct containing values to use as OVERRIDES 0022 % yalmip.opt_fname - name of user-supplied function used as FNAME, 0023 % except with calling syntax: 0024 % MODIFIED_OPT = FNAME(DEFAULT_OPT, MPOPT); 0025 % 0026 % Output is an sdpsettings struct to pass to SOLVESDP. 0027 % 0028 % There are multiple ways of providing values to override the default 0029 % options. Their precedence and order of application are as follows: 0030 % 0031 % With inputs OVERRIDES and FNAME 0032 % 1. FNAME is called 0033 % 2. OVERRIDES are applied 0034 % With inputs OVERRIDES and MPOPT 0035 % 1. FNAME (from yalmip.opt_fname) is called 0036 % 2. yalmip.opts (if not empty) are applied 0037 % 3. OVERRIDES are applied 0038 % 0039 % Example: 0040 % 0041 % If yalmip.opt_fname = 'yalmip_user_options_3', then after setting the 0042 % default YALMIP options, YALMIP_OPTIONS will execute the following 0043 % user-defined function to allow option overrides: 0044 % 0045 % opt = yalmip_user_options_3(opt, mpopt); 0046 % 0047 % The contents of yalmip_user_options_3.m, could be something like: 0048 % 0049 % function opt = yalmip_user_options_3(opt, mpopt) 0050 % opt.solver = 'sedumi'; 0051 % opt.sedumi.eps = 0; 0052 % opt.sedumi.alg = 2; 0053 % opt.sedumi.free = 1; 0054 % opt.sedumi.stepdiff = 2; 0055 % 0056 % See the YALMIP documentation (help sdpsettings) and the solver (e.g., 0057 % SeDuMi, SDPT3, etc.) documentation for details. 0058 % 0059 % See also SDPSETTINGS, MPOPTION. 0060 0061 % MATPOWER 0062 % Copyright (c) 2013-2015 by Power System Engineering Research Center (PSERC) 0063 % by Ray Zimmerman, PSERC Cornell 0064 % and Daniel Molzahn, PSERC U of Wisc, Madison 0065 % 0066 % $Id: yalmip_options.m 2644 2015-03-11 19:34:22Z ray $ 0067 % 0068 % This file is part of MATPOWER. 0069 % Covered by the 3-clause BSD License (see LICENSE file for details). 0070 % See http://www.pserc.cornell.edu/matpower/ for more info. 0071 0072 %%----- initialization and arg handling ----- 0073 %% defaults 0074 verbose = 1; 0075 fname = ''; 0076 0077 %% second argument 0078 if nargin > 1 && ~isempty(mpopt) 0079 if ischar(mpopt) %% 2nd arg is FNAME (string) 0080 fname = mpopt; 0081 have_mpopt = 0; 0082 else %% 2nd arg is MPOPT (MATPOWER options struct) 0083 have_mpopt = 1; 0084 verbose = mpopt.verbose; 0085 if isfield(mpopt.yalmip, 'opt_fname') && ~isempty(mpopt.yalmip.opt_fname) 0086 fname = mpopt.yalmip.opt_fname; 0087 end 0088 end 0089 else 0090 have_mpopt = 0; 0091 end 0092 0093 %% ----- set default options for YALMIP ----- 0094 opt = sdpsettings; 0095 opt.verbose = verbose >= 1; 0096 0097 % Store defaults for SeDuMi and SDPT3. Use a default sdpsettings object for 0098 % any other solver. 0099 if have_fcn('sedumi') 0100 opt = sdpsettings(opt, ... 0101 'solver','sedumi', ... 0102 'sedumi.eps',1e-8, ... 0103 'sedumi.alg',2, ... 0104 'sedumi.sdp',1, ... 0105 'sedumi.free',1, ... 0106 'sedumi.stepdif',2); 0107 elseif have_fcn('sdpt3') 0108 opt = sdpsettings(opt, ... 0109 'solver','sdpt3', ... 0110 'sdpt3.gaptol',0, ... 0111 'sdpt3.maxit',100); 0112 end 0113 0114 %%----- call user function to modify defaults ----- 0115 if ~isempty(fname) 0116 if have_mpopt 0117 opt = feval(fname, opt, mpopt); 0118 else 0119 opt = feval(fname, opt); 0120 end 0121 end 0122 0123 %%----- apply overrides ----- 0124 if have_mpopt && isfield(mpopt.yalmip, 'opts') && ~isempty(mpopt.yalmip.opts) 0125 opt = nested_struct_copy(opt, mpopt.yalmip.opts); 0126 end 0127 if nargin > 0 && ~isempty(overrides) 0128 opt = nested_struct_copy(opt, overrides); 0129 end