Increasing decimal point precision

Hello, I'm working on a project to read data from a certain type of file and output it into a properly formatted CSV file. I have everything working properly, but the outputs aren't to the precision I would require. While debugging I can see that the matrix elements contain the data to the necessary precision, the output just isn't following this. For example, in the matrix M, element M(1,1) = 5.5860e+04, but when highlighted I can see the full value of 5.586023447564540e+04. When I write the data out using:

dlmwrite(output_file, M, 'precision', '%15.10f', 'precision', 5, 'precision', 10, 'precision', 10,'precision', 6, 'precision', 6, 'precision', 6, 'precision', 6, 'precision', 6, 'precision', 6, 'newline', 'pc', '-append');

The value shows up as 55860.2 in the .csv. I thought I had understood the C-style formatting strings and dlmwrite function, but it seems that I don't. If it helps, M is a n by 10 matrix, but only the first column needs further formatting.

Thank you for your help!

Kevin V.

Answer 1

[Walter Roberson]

You cannot have multiple "precision" arguments in dlmwrite()