Reading and writing a 2-column table of strings to text file

Question

Peter de Goot 2020-6-4

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https://ww2.mathworks.cn/matlabcentral/answers/542357-reading-and-writing-a-2-column-table-of-strings-to-text-file

评论： Peter de Goot 2020-6-4

I have a novice question on saving to and loading from text files. I'm new to Matlab, so I need very simple step-by-step instructions on how to do this. Perhaps it is in a tutorial somewhere, that would be fine if someone could point me to it.

I want to save and load values as a text file with two columns. There is a mix of strings and numbers, so everything could be converted to strings before saving. That would be fine.

The first column is a list of parameter names, the second is the value of these parameters.

For example , the first column with three rows might be "parameter name 1", "parameter name 2", "parameter name 3". The second column of three rows might be "100", "200", "Off".

I would like to create this text file, and be able to load and interpret it again. Thank you!

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Answer 1

Takumi 2020-6-4

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https://ww2.mathworks.cn/matlabcentral/answers/542357-reading-and-writing-a-2-column-table-of-strings-to-text-file#answer_446405

编辑：Takumi 2020-6-4

You can find many ways by following the links below.

https://www.mathworks.com/help/matlab/text-files.html

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Takumi 2020-6-4

在 MATLAB Online 中打开

I made a sample program. Is it helpful?

names = {'param1','param2','param3'};
values = [100,200,NaN];
fname = 'test.txt';
output = [names',num2cell(values)'];
writecell(output,fname)
clear
data = readcell('test.txt');
Names = data(:,1);
Values = cell2mat(data(:,2));