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Dear Marco, Thanks a lot for your reply. I am still not sure if Minimize command works for my case or not. If I am not wrong, for your example case, there is only 1 peak value which is 1 and it is occurred at x=0 and y=0. So what I would like to...
Dear Daniel, Thanks for your response. Unfortunately I do not have the exact equation yet. I need to create that equation by myself by considering several parameters, i.e. 1 response variable with several explanatory variables. So in my example...
Dear Marco, Thanks a lot for your explanations! Yes, it works. Thanks again for your help. Btw, may I ask you another thing? I have a PDF of normal distribution of a certain variable, like in this case, the value of a (please refer to below...
Dear Sean, Thanks for your advices. I will try it out. For Daniel: Thanks for your comments. Herewith the values of those variables: a and b are constant values where a is 117.59 and b is 0.006286. As for newfr: newefr =...
Dear Ivan, Thanks for your response. I really appreciate it. Yes, you are right. It has something to do with the usage of lists. So I changed my equation into: sol = NDSolve[{q'[t] == (a q[t]^b newefr[t] - q[t]) + (a q[t]^b (newefr[t] -...
Dear All, I want to ask your advice about clustering method. I have rock type data for 22 catchments and the data consists of the area of each rock type in terms of percentage and also in km^2 (please refer to the excel sheet as per attached). By...
Dear Daniel, Thanks for your comments. There is a physical meaning for using only small range data set so that's the reason why I am trying not to use the full range data set, if possible. However, thanks a lot for your comments. I am considering...
Hi Marco, It seems like someone ever discussed about it before [http://mathematica.stackexchange.com/questions/28186/can-mathematica-9-peacefully-coexist-with-mathematica-8-on-windows ] and it's said there is no problem to install multiple versions...
Dear Daniel and Bill, Thanks a lot for your explanations. It's really helpful. Thanks and Regards, Intan
Dear Nasser, Yes, it works:). Thanks a lot for your help! Best Regards, Intan