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Paola


Last seen: 1 year ago |  Active since 2017

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Question


Cosine similarity between two matrices
Dear all, I have some vectors 32x1, representing force fields. I use the quiver function to plot and visualize the fields. (see...

2 years ago | 1 answer | 0

1

answer

Question


Divergence, curl and potential function of 2D vector fields
Hello, I have a 2020 Matlab version and I calculated the divergence and the curl of 2D vector fields applying these functions: ...

3 years ago | 1 answer | 0

1

answer

Question


Standard Error and confidence interval
Hello, I have a 16x31 matrix, DeltaAnglesAdj, and I calculated the Standard error, columnwise: std_err_mean = std(DeltaAnglesA...

4 years ago | 1 answer | 0

1

answer

Question


Weighted linear combination between vectors
Hello, I have a matrix W 32x4. I made the linear combinations of all its column vectors, considering all the possible pairs and...

5 years ago | 2 answers | 0

2

answers

Question


Divergence matrix interpretation and linear combination
Hello, I am new to the mathematical concept of divergence, even if it is quite clear to understand it in figures or examples. ...

5 years ago | 0 answers | 0

0

answers

Question


Select part of a signal
Hello, I have a 6xN matrix and a 1 dimension vector (made of 0 and 1) (ex: 000000000000000111110000000000.) I need to select...

6 years ago | 0 answers | 0

0

answers

Question


Remove 50 Hz noise
I am recording 6 channels from a force transducer, but there is a 50 Hz noise I want to remove. I was considering to use a simpl...

6 years ago | 1 answer | 0

1

answer

Question


How to load a specific element of a variable?
Hello, I have a file "Positions.mat" which contains 4 variables: a, b, c, d. Every variable is a 1x2 double. For example...

7 years ago | 1 answer | 0

1

answer

Question


Help Nested Foor Loop
Hello, I need to move two linear stages. I am using a nested for loop: Xstep= Xdist/(NstepsX-1); x=XposStart(2):Xstep:X...

7 years ago | 1 answer | 0

1

answer

Question


Attempted to access cols3(6); index out of bounds because numel(cols3)=5
Hello, I get an error when I run my code. This is the part that gives me prob. Actually, the length of cols3 in my data can va...

7 years ago | 1 answer | 0

1

answer

Question


How to select specific columns in a matrix and create a new one
Hello, I am very new to Matlab, so my question could be too elementary... I have a huge matrix made of 7 rows. In the last r...

7 years ago | 1 answer | 0

1

answer

Question


How to access stream data?
Hi, I am acquiring 6 analog channels from a force transducer and 1 channel as digital output (to control an external stimulatio...

7 years ago | 1 answer | 0

1

answer