Error with plotting a massive text file data set.

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Niki Wilson 2023-3-14

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https://ww2.mathworks.cn/matlabcentral/answers/1928395-error-with-plotting-a-massive-text-file-data-set

回答： Cameron 2023-3-14

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I have a really big data set consisting of a time stamp and a measured value. It looks like this:

I plotted the data using the following code:

load file.txt;

x = file(:, 2);

y = file(:, 3);

plot(x, y);

It runs without throwing errors, but the x values are all just 11. That was the only number that saved.

Does anyone know what I am doing wrong? Also, is there a way to manipulate the data set so that the time stamp starts from 0 and each subsequent point is the amount of time that has elapsed from the previous measurment?

Thanks.

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Mathieu NOE 2023-3-14

hello

can you share an extract of you file ?

Niki Wilson 2023-3-14

DataSet.zip

This is the entire data set.

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Cameron 2023-3-14

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1928395-error-with-plotting-a-massive-text-file-data-set#answer_1192800

在 MATLAB Online 中打开

data = readtable('Analysis1.txt');
plot(data.Var1,data.Var2)

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