MATLAB爱好者论坛-LabFans.com - 查看单个帖子 - Is there any benefit to vectorization of following code in matlab?

poster · 2019-11-26, 17:02

for i=1:numResults

    tempStructure=struct;

    for j=1:options.numDates

        stringJ=num2str(j);

        [tempStructure.(['temp' stringJ]),tempStructure.(['tempHHI' stringJ])]=fillTemp(resultsStructure.(['results' stringJ]),resultsStructure.(['resultsHHI' stringJ]),options.resultSize,i);

    end

end

Here, we can assume that resultStructure has fields (specified dynamically) before the loop and every field is present in resultStructure.

fillTemp is a complex function that is very difficult to vectorize.

Is there any benefit in removing "for" loops for i and j by way of bsxfun in the code above to improve performance? Any alternative method for speeding up the above code is also appreciated.

Note: I understand the way I am defining and using structures with dynamic fields is not the most optimal solution but this is a working solution and I do not want to tinker with the working solution.
I am using Matlab 2018a.

2019-11-26, 17:02	#1
poster 高级会员注册日期: 2019-11-21 帖子: 3,006 声望力: 66	Is there any benefit to vectorization of following code in matlab? `for i=1:numResults tempStructure=struct; for j=1:options.numDates stringJ=num2str(j); [tempStructure.(['temp' stringJ]),tempStructure.(['tempHHI' stringJ])]=fillTemp(resultsStructure.(['results' stringJ]),resultsStructure.(['resultsHHI' stringJ]),options.resultSize,i); end end` Here, we can assume that resultStructure has fields (specified dynamically) before the loop and every field is present in resultStructure. fillTemp is a complex function that is very difficult to vectorize. Is there any benefit in removing "for" loops for i and j by way of bsxfun in the code above to improve performance? Any alternative method for speeding up the above code is also appreciated. Note: I understand the way I am defining and using structures with dynamic fields is not the most optimal solution but this is a working solution and I do not want to tinker with the working solution. I am using Matlab 2018a. More answer...