Dear all, I am using the DEoptim package. My optimization syntax has three decesion variables. If I increase the upper bound of the first or third variables,I get an error related to singularity of a matrix. However, I need to increase the upper bound of the first and third variables. The true bounds for the the three variables are (0,+inf), (0,1) and (0,+inf). However, The syntax gives errors even when I set the upper bounds for the first and third variables =10 only . The syntax runs without errors, when I set the upper bound <="5" for the third variable for example. The first variable even needs a smaller upper bound to run succesfully. I don't know how could I handle this problem?could anybody help me to increase the bound of the first and third variables to a reasonable large number, without having this error?
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