how to vary data length in the given code.There are 7 sites an each site having different data length.For example n1=18, n2=29 and so on N=number of sites are 7.

for i=1:500
    for j=1:7
        b0(j,:,i)=D(j,:,i)/46;
        for k=1:45
            b1(j,k,i)=(D(j,k,i)*(46-k))/(46*45);
            for m= 1:44
                b2(j,m,i)=(D(j,m,i)*(46-m)*(46-m-1))/(46*45*44);
                for n=1:43
                    b3(j,n,i)=(D(j,n,i)*(46-n)*(46-n-1)*(46-n-2))/(46*45*44*43);
                end
            end
        end
    end
end

[Namrata Chandel]

hello sir, thanks for the reply.where I mentioned 46 i.e the data length of single site,similarly there are 7 sites and all are having different data length.how to incorporate that.

[Jon]

Please explain what you problem is. What are you trying to do that you can't do. Do you get an error message that you don't understand. If so then cut and paste the entire error message here so that we can see it.

[dpb]

Start by going back to how the data are input -- and don't write loops with hardcoded upper limits nor bury magic numbers inside the code, use variables that can be set/modified based on input data.

It would also help to explain what the starting point is and what is the end result in functional terms besides just posting totally uncommented obscure code...you know what you're trying to accomplish but we have no idea nor way to know what that might be.

[Namrata Chandel]

Dear Sir,

Please see the attchment.I am trying to apply the attched equation in 7 gauging sites. I am having 7 sites and each site is having different annual maximum flood value of different data length.my problem is that i am able to run the code with same data length (for example every site is having 30 years of record length) but if I vary the record lentgh of each site (for example site no 1 is having 18 years of data , site 2 is having 24 years of record length and so on) not able to make a code for different data length.after that simulation is done for 500 times.

[Namrata Chandel]

b0(j,:,i)=D(j,:,i)/46; here 46 is length of the data of site 1.

[dpb]

First, turn the calculation into a function that operates over the size of the inputs passed into it instead of hardcoding fixed limits for loops.

Then read in the data for each case into an array and call your function with it.

As noted above, the problem arises when you use hardcoded constants in the code instead of variables and also in not factoring out the code that does the same operations over each data set into a separate, callable function.