How to make a text file from functions

Question

Chloe 2024-4-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2110176-how-to-make-a-text-file-from-functions

回答： Sanju 2024-4-29

x = 1
y = 1 
myFile = fopen('myValues.txt', 'w')
fprintf(myFile, "X Length\tY Length\t Hypot Length\t\tPerimeter\t\tArea\n")
for i = 1:5
    for j = 1:5
        myHypot = hValue(i,j)
        myPerim = pValue(i,j)
        myArea = aValue(i,j)
        fprintf(myFile, string(i) + "\t\t\t" + string(j) + "\t\t\t\t" + string(myHypot) + "\t\t\t" + string(myPerim) + "\t\t\t" + string(myArea) + "\n")
    end
end
function hValue = hValue(xValue,yValue)
hValue = sqrt(xValue.^2+yValue.^2);
end
function pValue = pValue(xValue,yValue)
pValue = (xValue + yValue + (sqrt(xValue.^2+yValue.^2)));
end
function aValue = aValue(xValue,yValue)
aValue = 0.5*xValue*yValue;
end

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Walter Roberson 2024-4-22

Just remember to fclose(myFile) at the end.

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Answer 1

Sanju 2024-4-29

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2110176-how-to-make-a-text-file-from-functions#answer_1449626

在 MATLAB Online 中打开

Hi Chloe,

To generate a text file using MATLAB functions, utilize the "fprintf" function to input the desired content into the file. It appears that the code you've written is functioning correctly; however, remember to close the file once the operation is complete.

Here's the updated code,

x = 1;
y = 1;
myFile = fopen('myValues.txt', 'w');
fprintf(myFile, "X Length\tY Length\t Hypot Length\t\tPerimeter\t\tArea\n");
for i = 1:5
    for j = 1:5
        myHypot = hValue(i,j);
        myPerim = pValue(i,j);
        myArea = aValue(i,j);
        fprintf(myFile, string(i) + "\t\t\t" + string(j) + "\t\t\t\t" + string(myHypot) + "\t\t\t" + string(myPerim) + "\t\t\t" + string(myArea) + "\n");
    end
end
fclose(myFile);
function hValue = hValue(xValue,yValue)
    hValue = sqrt(xValue.^2+yValue.^2);
end
function pValue = pValue(xValue,yValue)
    pValue = (xValue + yValue + (sqrt(xValue.^2+yValue.^2)));
end
function aValue = aValue(xValue,yValue)
    aValue = 0.5*xValue*yValue;
end

This code will create a file named "myValues.txt" and write the desired content to it. Each line in the file will contain the values of i, j, myHypot, myPerim, and myArea separated by tabs.

Hope this helps!