dear all,
I'm trying to model solar irradiance using Beta distribution any ideas to do that?
thank you,
Anan
Search found 20 matches
- 4 years ago
- Forum: Modeling
- Topic: modeling solar irradiance
- Replies: 0
- Views: 2105
- 4 years ago
- Forum: Modeling
- Topic: random variable in gams
- Replies: 3
- Views: 3214
Re: random variable in gams
Dear A.Sen ,
thank you for the attached example I would like to ask you if possible can you help me to generate random variable with Beta distribution?
thank you.
thank you for the attached example I would like to ask you if possible can you help me to generate random variable with Beta distribution?
thank you.
- 4 years ago
- Forum: Modeling
- Topic: random variable in gams
- Replies: 3
- Views: 3214
Re: random variable in gams
thank you for your help
I was trying to use chance constraint with one random variable but the equation is indexed on time there is a problem in chance constraint equation can you help me?
I was trying to use chance constraint with one random variable but the equation is indexed on time there is a problem in chance constraint equation can you help me?
- 4 years ago
- Forum: Modeling
- Topic: random variable in gams
- Replies: 3
- Views: 3214
random variable in gams
hello,
I would like to ask how to model a random variable with discrete probabilities in gams?
I used emp before to model the chance constraint but I would like to ask if there is any other ways to model it without emp?
thank you,
ANAN
I would like to ask how to model a random variable with discrete probabilities in gams?
I used emp before to model the chance constraint but I would like to ask if there is any other ways to model it without emp?
thank you,
ANAN
ccreform
hello,
any one can help me how to use ccreform or what is the syntax to specify that i want to use chull or bigM?
thank you.
any one can help me how to use ccreform or what is the syntax to specify that i want to use chull or bigM?
thank you.
- 4 years ago
- Forum: Syntax
- Topic: random variable in gams
- Replies: 0
- Views: 1887
random variable in gams
hello, I have a random variable following a probability distribution and its an input variable to the equation how can I model it in gams should I use (randvar)? is it possible to use randvar without EMP? waterhead(Hy,t,bus)$Bushy(bus,Hy) .. head(Hy,t)=e= datahy(Hy,'h0')+lw(hy,t); hydro_output(Hy,t,...
- 4 years ago
- Forum: Solvers
- Topic: Deterministic equivalent
- Replies: 0
- Views: 2156
Deterministic equivalent
dear all, I would like to ask about this function in GAMS (option emp = de;) I'm modeling chance constraint using EMP but I need to use the deterministic equivalent does this function (option emp = de;) use the Big M to reform the chance constraint by itself or I have to reform the constraint then u...
- 4 years ago
- Forum: Modeling
- Topic: neative values problem
- Replies: 2
- Views: 4067
Re: neative values problem
thank you so much for your reply this was helpful to understand how GAMS deal with the equations
- 4 years ago
- Forum: Modeling
- Topic: neative values problem
- Replies: 2
- Views: 4067
neative values problem
I would like to ask if anyone can help me to find out why the equation values are negative and the variable values are positive the equation name is hydro_output and variable ph * this code for 6-bus system considering the line constraints with one hydro unit and one thermal unit Set t 'time' / t1*t...
- 4 years ago
- Forum: Modeling
- Topic: chance constraint
- Replies: 0
- Views: 1760
chance constraint
dear all, please help me with this code why is it infeasible?? what is the problem with random variable Q or the equation hydro_output?? * this code for 6-bus system considering the line constraints with one hydro unit and one thermal unit Set t 'time' / t1*t24 / i 'generators indices' / g1*g3 / k '...