addition of 1 & 4th column data from a text file in matlab

To perform addition on the 1st and 4th column data from a text file in MATLAB, you can follow the steps below:

1. Read the text file into MATLAB using the readmatrix function. Make sure your text file is in the right format (space-separated values or tab-separated values) for readmatrix to parse it correctly.

   main.m
   data = readmatrix('your_file.txt');
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2. Extract the 1st and 4th columns from the data matrix using indexing.

   main.m
   column1 = data(:, 1);
   column4 = data(:, 4);
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3. Perform the addition of the columns using the plus operator.

   main.m
   result = column1 + column4;
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The result variable will contain the addition of the values from the 1st and 4th columns of the text file.

Make sure to replace 'your_file.txt' with the actual name or path of your text file.

Here's the complete code:

main.m
data = readmatrix('your_file.txt');
column1 = data(:, 1);
column4 = data(:, 4);
result = column1 + column4;
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Remember to adjust the column indices if your file is 0-based or if the relevant columns start at a different index.