FittingOptions 0 0 440 538 Dialog :/res/ball.ico:/res/ball.ico Fit Algorithms 0 0 QComboBox::AdjustToContents QFrame::NoFrame 0 0 0 DREAM Samples: <html><head/><body><p>Number of points to be drawn from the Markov chain.</p></body></html> Burn-in Steps: <html><head/><body><p>The number of iterations to required for the Markov chain to converge to the equilibrium distribution.</p></body></html> Population: <html><head/><body><p>The size of the population.</p></body></html> Initializer: <html><head/><body><p><span style=" font-style:italic;">Initializer</span> determines how the population will be initialized. The options are as follows:</p><p><span style=" font-style:italic;">eps</span> (epsilon ball), in which the entire initial population is chosen at random from within a tiny hypersphere centered about the initial point</p><p><span style=" font-style:italic;">lhs</span> (latin hypersquare), which chops the bounds within each dimension in <span style=" font-weight:600;">k</span> equal sized chunks where <span style=" font-weight:600;">k</span> is the size of the population and makes sure that each parameter has at least one value within each chunk across the population.</p><p><span style=" font-style:italic;">cov</span> (covariance matrix), in which the uncertainty is estimated using the covariance matrix at the initial point, and points are selected at random from the corresponding gaussian ellipsoid</p><p><span style=" font-style:italic;">random</span> (uniform random), in which the points are selected at random within the bounds of the parameters</p></body></html> eps lhs cov random Thinning: <html><head/><body><p>The amount of thinning to use when collecting the population.</p></body></html> Steps: <html><head/><body><p>Determines the number of iterations to use for drawing samples after burn in.</p></body></html> Qt::Vertical 20 268 Levenberg Steps: <html><head/><body><p>The number of gradient steps to take.</p></body></html> f(x) tolerance: <html><head/><body><p>Used to determine when the fit has reached the point where no significant improvement is expected.</p></body></html> x tolerance: <html><head/><body><p>Used to determine when the fit has reached the point where no significant improvement is expected.</p></body></html> Qt::Vertical 20 434 Quasi-Newton BFGS Steps: <html><head/><body><p>The number of gradient steps to take.</p></body></html> Starts: <html><head/><body><p>Value thattells the optimizer to restart a given number of times. Each time it restarts it uses a random starting point.</p></body></html> f(x) tolerance: <html><head/><body><p>Used to determine when the fit has reached the point where no significant improvement is expected.</p></body></html> x tolerance: <html><head/><body><p>Used to determine when the fit has reached the point where no significant improvement is expected.</p></body></html> Qt::Vertical 20 68 Differential Evolution Steps: <html><head/><body><p>The number of iterations.</p></body></html> Population: Crossover ratio: <html><head/><body><p>The size of the population.</p></body></html> Scale: <html><head/><body><p>Determines how much to scale each difference vector before adding it to the candidate point.</p></body></html> f(x) tolerance: <html><head/><body><p>Used to determine when the fit has reached the point where no significant improvement is expected.</p></body></html> x tolerance: <html><head/><body><p>Used to determine when the fit has reached the point where no significant improvement is expected.</p></body></html> Qt::Vertical 20 356 Nelder-Mead Simplex Steps: <html><head/><body><p>The number of simplex update iterations to perform.</p></body></html> Starts: <html><head/><body><p>Tells the optimizer to restart a given number of times. Each time it restarts it uses a random starting point.</p></body></html> Simplex radius: <html><head/><body><p>The initial size of the simplex, as a portion of the bounds defining the parameter space.</p></body></html> f(x) tolerance: <html><head/><body><p>Used to determine when the fit has reached the point where no significant improvement is expected. </p></body></html> x tolerance: <html><head/><body><p>Used to determine when the fit has reached the point where no significant improvement is expected. </p></body></html> Qt::Vertical 20 382 Qt::Horizontal QDialogButtonBox::Cancel|QDialogButtonBox::Help|QDialogButtonBox::Ok buttonBox rejected() FittingOptions reject() 316 260 286 274