.dat file editing

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Dhyrim
Dhyrim 2017-5-3
编辑： John Kelly 2017-11-10
Hi, I need help with some beginner lvl stuff in matlab. I have a .dat file, with 3 colums of long data, that I want to use in another program for research. I would like to open the file, and multiply/add every value of the first column with a fixed number. Then after the values are changed, i would want to save it under a new name, but still as a .dat file, so I can use it outside of matlab. Can anyone help me with this? Thx in advance

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回答（1 个）

KL
KL 2017-5-3
编辑：KL 2017-5-3
data_in = dlmread('sample.dat');
data_out = [data_in(:,1)*2, data_in(:,2)+4, data_in(:,3)];
save my_data.dat data_out -ASCII
check here
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Dhyrim
Dhyrim 2017-5-4
Its kinda working, I imorted the data and then saved it using the line you proposed. Only problem is, now it saves the numbers in their short form, it cuts it of after a certain decimal.... and I also used format long
KL
KL 2017-5-4
that's surprising. I created my own dat file with few values of similar precision and the import works fine.

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