Answered

Cross-correlation issue: how can I align two signals?

Hello, The reason (I suspect) the alignsignals is being weird is because of the huge negative spikes in your B signal. If we ...

Cross-correlation issue: how can I align two signals?

Hello, The reason (I suspect) the alignsignals is being weird is because of the huge negative spikes in your B signal. If we ...

6 years ago | 0

| accepted

Answered

Calculating moving standard deviation (bounds) for time series

Hello, I created the following code which should do as you wanted. An explanation of the code is below. % % function s...

Calculating moving standard deviation (bounds) for time series

Hello, I created the following code which should do as you wanted. An explanation of the code is below. % % function s...

6 years ago | 1

Answered

I have an excel file ... which consists of 1st column is dates and time and other n rows and n columns data.... in this file, I have daily 1-hour data, I want day night data separate for the reference I have attached output file. Please find input an

Hello, Here is code that does what you want. You'll need to have two blank files in your directory named "outputfileDAY.csv" ...

I have an excel file ... which consists of 1st column is dates and time and other n rows and n columns data.... in this file, I have daily 1-hour data, I want day night data separate for the reference I have attached output file. Please find input an

Hello, Here is code that does what you want. You'll need to have two blank files in your directory named "outputfileDAY.csv" ...

6 years ago | 1

Answered

possible to use logical indexing with an array argument ?

Hello, WhateverYouWant = (label == 1:15653); Note: assuming label is also a 15653 length vector OR a scalar. Hope thi...

possible to use logical indexing with an array argument ?

Hello, WhateverYouWant = (label == 1:15653); Note: assuming label is also a 15653 length vector OR a scalar. Hope thi...

6 years ago | 0

| accepted

Answered

help in adding a descending order a symetric matric

Hello, Here's a very inelegant solution, but it does the job. I'm making all values below the main diagonal -Inf so that they...

help in adding a descending order a symetric matric

Hello, Here's a very inelegant solution, but it does the job. I'm making all values below the main diagonal -Inf so that they...

6 years ago | 1

| accepted

Answered

help in fzero function

Hello, In addition to what Walter Roberson said as good practice, it would appear that your function does not have a root. ...

help in fzero function

Hello, In addition to what Walter Roberson said as good practice, it would appear that your function does not have a root. ...

6 years ago | 1

Answered

How to plot a 3 dimensional matrix against its last independent variables?

Hello, A simple solution to get around your problem is: for i = 1:size(u,3) uplot(i) = u(3,5,i); end plot(z,...

How to plot a 3 dimensional matrix against its last independent variables?

Hello, A simple solution to get around your problem is: for i = 1:size(u,3) uplot(i) = u(3,5,i); end plot(z,...

6 years ago | 0

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Answered

How to get data from variables that change the name?

Hello, A simple solution would be: Days = [day1 day2 day3 ... day15]; Then call Days(:,i) for the ith days data if it...

How to get data from variables that change the name?

Hello, A simple solution would be: Days = [day1 day2 day3 ... day15]; Then call Days(:,i) for the ith days data if it...

6 years ago | 1

Answered

I need to partition my plot

Hello, It seems like you could just redefine distance_error_rms at the end as: distance_error_rms = distance_error_rms(1...

I need to partition my plot

Hello, It seems like you could just redefine distance_error_rms at the end as: distance_error_rms = distance_error_rms(1...

6 years ago | 0

| accepted

Answered

How do I create an equation for symsum that involves multiplaction, fractions, etc?

Hello, You need a multiplication sign between 2 and k: syms k f= 1/((2*k+1)^2.*(2*k+3)^2) S_symsum= symsum(f, k,...

How do I create an equation for symsum that involves multiplaction, fractions, etc?

Hello, You need a multiplication sign between 2 and k: syms k f= 1/((2*k+1)^2.*(2*k+3)^2) S_symsum= symsum(f, k,...

6 years ago | 0

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Answered

Moving window with cumulative sum less than a ref value and excluding certain windows

Hello, I tossed this together real quick so there might be unforeseen errors, but this should work: % Given A window = ...

Moving window with cumulative sum less than a ref value and excluding certain windows

Hello, I tossed this together real quick so there might be unforeseen errors, but this should work: % Given A window = ...

6 years ago | 1

Answered

Plotting outputs from for loops in a 3D space

Hello, This should be somewhat like you wanted: %particle vector [x,y,z] position pm= [1;1;1]; %particle mass, arbitr...

Plotting outputs from for loops in a 3D space

Hello, This should be somewhat like you wanted: %particle vector [x,y,z] position pm= [1;1;1]; %particle mass, arbitr...

6 years ago | 1

| accepted

Answered

Adding entry to a matrix loop

Hello, You can fill in your matrix by rows with this: for i = 1:100 for j = 1:200 % Acquire your B ...

Adding entry to a matrix loop

Hello, You can fill in your matrix by rows with this: for i = 1:100 for j = 1:200 % Acquire your B ...

6 years ago | 0

| accepted

Answered

how does [~,I]=min(abs(strain-0.02)) work ?? (strain is a vector filled with floating point decimal numbers)

Hello, Regarding your original question about: [~,I] = min(abs(strain - 0.02)) Let's talk about what you're computi...

how does [~,I]=min(abs(strain-0.02)) work ?? (strain is a vector filled with floating point decimal numbers)

Hello, Regarding your original question about: [~,I] = min(abs(strain - 0.02)) Let's talk about what you're computi...

6 years ago | 4

| accepted

Answered

Total Number of 24 matrix (3*3) but this code show only one matrix 3*3 how to see full iteration in command window

I'm not entirely sure of your problem, but if you're trying to keep all of the Pare matrices generated, try this: Arr=1...

Total Number of 24 matrix (3*3) but this code show only one matrix 3*3 how to see full iteration in command window

I'm not entirely sure of your problem, but if you're trying to keep all of the Pare matrices generated, try this: Arr=1...

6 years ago | 0

| accepted

Answered

Fix Error: Operands to the || and && operators must be convertible to logical scalar values. Help Please.

Hello, With investigation into the Fzero function, it seems you're producing a nonscalar fx. This leads me to believe that th...

Fix Error: Operands to the || and && operators must be convertible to logical scalar values. Help Please.

Hello, With investigation into the Fzero function, it seems you're producing a nonscalar fx. This leads me to believe that th...

6 years ago | 3

Answered

Image correction to find circles

Hello, I would suggest trying to use some of the name-value pair arguments, the ones that seemed potentially useful for your ...

Image correction to find circles

Hello, I would suggest trying to use some of the name-value pair arguments, the ones that seemed potentially useful for your ...

6 years ago | 1

Answered

Why are the random numbers obtained by different invocations to LOGRND() the same?

Hello, This is possible because the two different invocations are running off the same initial seed, causing the same values ...

Why are the random numbers obtained by different invocations to LOGRND() the same?

Hello, This is possible because the two different invocations are running off the same initial seed, causing the same values ...

6 years ago | 0