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Cant understand how the values are stored

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A = load('r08_edfm.mat');
B = load('r08_edfm.mat');
d = A.val(1,:);
d_T = d';
input_channel = 3;
noisy_sig = B.val(input_channel,:);
noisy_sig_T = noisy_sig'
at workspace im getting these values

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Rehman Tanim
Rehman Tanim on 27 Nov 2020
yes but how -42.81 becomes -429
i mean how it is converted?
KSSV
KSSV on 27 Nov 2020
What you are looking into are completely two different data sets. There is no conversion of numbers taking place.
Rehman Tanim
Rehman Tanim on 27 Nov 2020
Can you please explain the data of A.val of first row? How is the data stored?

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Accepted Answer

Image Analyst
Image Analyst on 27 Nov 2020
You forgot to attach the .mat files so we can't do much. The first row of the val matrix stored in the mat file is extracted and put into a variable you cryptically call "d". We don't know what that first row means and so we can't "explain" it. All we can tell is that the first row of val from A is stored in a row vector "d" and then you're transposing it and putting it into column vector d_T, and you're then getting the third row of the val matrix from a different mat file and calling that noise, and also transposing that row vector into a column vector called "noisy_sig_T".
Can't you ask the people who created the mat file? If you don't even know what it means, then why do you want to do anything with it? Where did you get that script, or did you write it?

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Rehman Tanim
Rehman Tanim on 27 Nov 2020
Sorry problem was on my title,i couldnt actually explain the thing
I understood the whole thing ,in the (.mat) file there is "Direct_1" column which i m storing in A.
In the (.mat) file "Direct_1" column values are (-42.801,-44.301,-46.801,-49.301..........) but when im storing the transposed data it stores like this(-429,-444,-469,-494........)
i just wanted to know this thing for example how -42.801 is stored as -429
Image Analyst
Image Analyst on 27 Nov 2020
There is no "Direct_1" column in the mat file:
A =
struct with fields:
val: [6×10000 double]
B =
struct with fields:
val: [6×10000 double]
so I'm not sure what you're talking about. And all the values in val are around 4-500 in the first part of the array, not around 42.

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