What Is Optimization Toolbox?

lsqnonneg[x,resnorm,residual,exitflag,output] = lsqnonneg(...) returnsa structure output that contains information about the optimization.[x,resnorm,residual,exitflag,output,lambda] =lsqnonneg(...) returns the Lagrange multipliers in the vector lambda.InputArguments“Function Arguments” on page 6-2 contains general descriptionsof arguments passed into lsqnonneg. This section providesfunction-specific details for options:optionsUse optimset to set or change the values of thesefields in the options structure, options. See“Optimization Options” on page 6-8 for detailedinformation.DisplayLevel of display. 'off' displays nooutput; 'final' displays just the finaloutput; 'notify' (default) displaysoutput only if the function does notconverge.TolX Termination tolerance on x.OutputArguments“Function Arguments” on page 6-2 contains general descriptionsof arguments returned by lsqnonneg. This section providesfunction-specific details for exitflag, lambda, andoutput:exitflagInteger identifying the reasonthealgorithmterminated. The following lists the values ofexitflag and the corresponding reasons thealgorithm terminated.1 Function converged to asolution x.0 Number of iterations exceededoptions.MaxIter.8-180