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BrokenDreams


Active since 2019

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In what order the transfer of functions take place in Fmincon?
The functions are 1)Fmincon 2)Objective Function 3)Constraint Function. Also in which step does it make use of Initial Guess

5 years ago | 1 answer | 0

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Question


Index exceeds the number of array elements (1). Caused by: Failure in initial nonlinear constraint function evaluation. FMINCON cannot continue.
My OBJECTIVE FUNCTION: function f=objective2(h,x,F_r,T_r,UA_r,n) options.Display='off'; %FlowStreams x(1)=F_r(1); x(2)=h; ...

5 years ago | 1 answer | 0

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Question


I get an error stating "Not enough input arguments. Error in constraint2 (line 3) c(1)=x(n+6)-x(n+7);". Please Help
My Objective function: function f=objective2(h,x,F_r,T_r,UA_r) options.Display='off'; %FlowStreams x(1)=F_r(1); x(2)=h; x(...

5 years ago | 1 answer | 0

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How do I maximise Volume of a cylinder such that its Surface Area is less than 10 using fmincon by predicting only either radius or height but not both?
Volume= pi*r*r*h Surface Area= 2*pi*r*(h+r); i am solving a bigger problem. this simple example will help me to solve the bigg...

5 years ago | 1 answer | 0

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How do I increment the value of a variable after each statement by 1?
I am trying to solve equations using fmincon. I have around 50 non linear constraints. At the moment i am defining them like ...

5 years ago | 1 answer | 0

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Solver stopped prematurely. fmincon stopped because it exceeded the function evaluation limit, options.MaxFunctionEvaluations = 3.000000e+03. Unable to rectify this error. Please Help
F_r and T_r are defined. [m n ]=size(F_r); [M N]=size(T_r); My constraints are lengthy but i have checked it is correct. ...

5 years ago | 1 answer | 0

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fmincon stopped because it exceeded the function evaluation limit, options.MaxFunctionEvaluations = 3.000000e+03.
I am looking to maximise x(n+10). I get wrong results. I am unable to find my mistake.

5 years ago | 0 answers | 0

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I have a variable named T_t which is of dimension [1 20]. How do i add a normal error with a standard deviation of 1 to it?
I wrote T_t=T_t+1*randn(size(T_t)); But when i check the standard deviation using std( T_t(:) ) i get the value as 51. Pls help...

5 years ago | 1 answer | 0

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Question


How to add errors when standard deviation is given?
I have a dataset consisting of 50 rows. How do i add noise when standard deviation is given as i)2 ii) 3% of true value

5 years ago | 1 answer | 0

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