How to normalize data?

Hi;

I have a txt file with two columns. I want to normalize the second y column to 1. How can I plot the normalized y axis vs. x axis?

I also upload the .txt file.

Could you please how can I write the Matlab code to plot a normalized graphic?

Thanks a lot..

[dpb]

Well, let's first define what your defnition of "normalize to 1" is...

https://www.mathworks.com/matlabcentral/answers/22745-normalizing-data?s_tid=answers_rc1-1_p1_MLT

https://www.mathworks.com/matlabcentral/answers/67122-how-to-normalize-the-data?s_tid=answers_rc1-2_p2_MLT

https://www.mathworks.com/matlabcentral/answers/248121-how-to-normalize-measured-data?s_tid=answers_rc1-3_p3_MLT

are three Answers that might be of interest, too...

Answer 1

[Christopher McCausland]

Hi Seval,

Normalising data has several diffrent meanings statistically speaking. I am guessing given the mention of the Y column, you wish to scale your data between 0 and 1.

There are several diffrent methods to do this;

1. Rescale
2. Divide the entire column by the largest elemental value in the column provided this data is from 0-X.

Let me know if this is what you are looking for or a diffrent satisitcal meaning or normilisation.

Christopher

Answer 2

[SEVAL DONERTAS]

Hi Christopher,

Actually; I have 5 different .txt file and I want to plot 5 different normalized graphic with these txt files. All of them have two columns (x and y). I want to normalize each y axis of five different txt files between 0 and 1.

I also add an example graphic that I want to obtain. Actually, I want to obtain a graphic trend as shown in this png file. Could you please help me about this issue?

I also add the txt files.

Best Regards,

[dpb]

https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html

Just give it a go; it's pretty simple and you'll be done while waiting for somebody else to do it for you....and have learned something alongst the way... :)