slow down the for loop operation for huge set of datas

Hello Team,

I would like to increase the search operation in quite faster way, the below code i have implemented takes atleast 40mins to complete it because i have very huge data

for i = 1:length(LocationsListData.x) % which is approximately 26532957
    idx = inpolygon(X(:),Y(:),LocationsListData.x(i),LocationsListData.y(i)) ;% X and Y has 4196*4196 size for each element
    idx(idx==0)=[];
    if~isempty(idx)
        value(i) = idx;
    end
end  

do you see any possiblities to reduce the speed ? if so and then how can i do that ?

[KSSV]

Try using gpuArray if you have a gpu card.

What is the size of LocationsListData? You can try reducing here.

[SatyaPrakash Gupta]

Hi

the size of LocationsListData i have alreday mentioned above i.e 1351663 x1

and i do not have gpudata , so you mean to say there are no solution to reduce this operation ?

[darova]

Can you show your polygon data and some LocationsListData?

[SatyaPrakash Gupta]

Hii Darova,

please find the locationListdata attaced in the below link.

there is no polygon available , i have grid where i use to search for available data in each grid using inpolygon function

https://drive.google.com/drive/folders/1q0cvqyjwUiTGgBHoSfRQlaHDLeosWw_G

[darova]

You have there some military data or what?

Answer 1

[Mohammad Sami]

You don't need to use the for loop with the inpolygon function.

idx = inpolygon(X(:),Y(:),LocationsListData.x,LocationsListData.y);

[SatyaPrakash Gupta]

this will also slow down and take much time.

anyway i dont need this logic anymore,thank you