How to use index for structure within for loop?

I have 4 structures s1,s2,s3, and s4 ... all have .time and .disp within each structure

I am trying to make a for loop that will do something like this ie: use an index i and run the loop four times, saving the output of a function in a new structure each time (M1, M2, M3 and M4), so I want the i in the following loop to be replaced by 1-4 each time. I am unsure of how to do this as of now my code is thinking the structure name is s not s1,s2,s3,s4 ... I have tried using [] and {} but I get errors

for i = 1:4

[speed, acc] = CalculateFunction [s(i).time, s(i).disp] %when i = 1 this line will be =CalculateFunction [s1.time, s1.disp]

M(i) = struct % when i = 1 this line will be M1.struct and so on..

M(i).speed = speed

M(i).acc = acc

end

Answer 1

[Stephen23]

Using numbered variable names is a sign that you are doing something wrong.

The simple and efficient approach is to use one non-scalar structure:

s = [s1,s2,s3,s4];
for s = 1:4
    s(k)
end

https://www.mathworks.com/help/matlab/matlab_prog/access-multiple-elements-of-a-nonscalar-struct-array.html