How can I write this C++ script to Matlab?

Question

onamaewa 2019-2-15

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/445231-how-can-i-write-this-c-script-to-matlab

回答： Walter Roberson 2019-2-15

How would you write this C++ script to Matlab?

do k = No_TimeSamples
    do i = No_Pixels
        SUM_1 = 0
        SUM_2 = 0  
        do j = 1, No_Geophones
            delay = R(i, j)/c
            ik = round(delay/dt + k)
            SUM_1 = SUM_1 + Data(ik, j)
            SUM_2 = SUM_2 + Data(ik, j)**2
        end
            image(i) = image(i) + SUM_1**2 - SUM_2
    end
    end

2 个评论
显示无隐藏无

Walter Roberson 2019-2-15

编辑：Walter Roberson 2019-2-15

?

That is not C++. It looks like Fortran to me.

Is No_TimeSamples a vector? Should we assume that k is to assume each value stored in No_TimeSamples in turn? Or should we assume that k is to assume only the one value stored in No_TimeSamples? Or should we assume that k is to assume the values from 1 to No_TimeSamples ?

Are you certain that the lower bound for the do j loop should be lower-case L, and not i or 1 ?

onamaewa 2019-2-15

It is a vector.

I have a CSV read into matlab with 10 000 time points, & 32 Sensor Channels.

This code generates an image based on data.

R(i, j) is an array.

Data(ik, j) is an array generated from my csv.

image(i) stores the values that generate the image.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Walter Roberson 2019-2-15

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/445231-how-can-i-write-this-c-script-to-matlab#answer_361262

在 MATLAB Online 中打开

for k = No_TimeSamples
    for i = No_Pixels
        SUM_1 = 0;
        SUM_2 = 0;
        for j = 1 : No_Geophones
            delay = R(i, j)/c;
            ik = round(delay/dt + k);
            SUM_1 = SUM_1 + Data(ik, j);
            SUM_2 = SUM_2 + Data(ik, j).^2;
        end
            image(i) = image(i) + SUM_1.^2 - SUM_2;
    end
 end