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Jon


92 2013 年以降の合計貢献数

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Using find to check the contents of files within a struct
It looks like your difficulty is coming from the argument that you are providing to the find command. If you look carefully at ...

約5時間 前 | 0

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Taking middle 4 values of n size array
You could use something like, for an array A n = length(A(:)) % : treats as column even if this is actually a multidimensional ...

1日 前 | 0

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Program for Impulsive Difference Equations
One way to approach this is to transform your difference equation in the single variable y to a system of two difference equatio...

1日 前 | 1

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How should i go about solving a set of ODEs for a set of data points? I would like to automate it as much as possible.
Please see my earlier comments. From the behavior you describe, it looks like Sol1 and SolRequired are returned empty from wha...

2日 前 | 0

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How should i go about solving a set of ODEs for a set of data points? I would like to automate it as much as possible.
I am not clear on the details of your implementation. It would take some time to go through it all line by line. In case it is ...

2日 前 | 1

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How to differentiate elements in a matrix by each other
Say your matrix is called M, you could do something like % find incremental change from one row to the next delta = diff(M); ...

2日 前 | 1

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How to organize a table?
You could do this with a simple loop I'll assume your table is called mytable % find maximum possible value for cell type cell...

5日 前 | 0

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concatenating and comparing two datsets
Assuming that the 9th column of both data sets is the same, I think you can do this just with an innerjoin tbl1 = readtable('da...

5日 前 | 1

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I want to add a line of best fit to my plot using the polyfit function.
You can do something like this p = polyfit(xL(A),anglex,1); anglexFit = polyval(p,xL(A)); plot(xL(A),anglex,'ko',xL(A),anglex...

6日 前 | 0

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open loop response for nonlinear system
Basically you need to define the set of ODE's (ordinary differential equations) that define your system and then solve them. MAT...

7日 前 | 0

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How to implement a frequency dependent analysis?
You are quite close with your code. I think you just need to use the semilogx with a few annotations as shown below %Schirmdämp...

7日 前 | 0

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How do I plot a 3D mesh from multiple csv files?
The problem apparently is with loading the files, nothing to do with plotting 3d mesh, or at least it didn't get far enough to h...

8日 前 | 0

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Insert missing date and corresponding values in a matrix?
I'm not completely clear on what it is you are trying to do, but I think you want to plot the values in the third column against...

9日 前 | 0

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how to call nested structure and cell array?
I'm not sure exactly what you mean by "call the first column of the data.timepoints" If you wanted to assign some other variabl...

12日 前 | 0

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How can I graph arrays with negative exponentials? It keeps saying that there is an error but I can not figure out what is wrong
You need to put a multiplication operator between the constants and the exponents f(x)=[6.02105*exp(-6,) 1.514423*exp(-3), 6.64...

12日 前 | 0

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Extrapolation of data points
You could first find the equation of a straight line that goes through the last n points of one curve, and then similarly find a...

12日 前 | 0

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Creating a Matrix from Distances between Vectors
So from your description you actually want to find and store the vectors that go from each point in the first matix to each poin...

13日 前 | 0

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Rotation of curve question
I think you also have a sign error in your formula. Xr = (x-XXc)*cos(delta) + (yp-YYc)*sin(delta) + XXc; % should be Xr = (...

13日 前 | 0

質問


How to vectorize assignment from array of structures to cell array
I am looking for a way to make an assignment from an array of structures to a cell array without using a loop. Here is an examp...

15日 前 | 1 件の回答 | 0

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Help with discrete convolution
This is a good reference that explains discrete convolution specifically using MATLABhttps://www.ling.upenn.edu/courses/cogs501/...

15日 前 | 0

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could anyone help me to solve the issue
If I am understanding your problem correctly you could do something like this: % define matrix of value A=[0.0037 0.0036 ...

16日 前 | 0

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Issue with array2timetable = Row times must be datetime or duration vector with one time for each row in input timetable.
It looks like you may have the arguments reversed. The first argument should be the data (doubles) the last argument should be t...

16日 前 | 0

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Help with discrete convolution
You need to first form two vectors, z1 and z2 where z1 hold the values of your first series, and z2 holds the values of your sec...

16日 前 | 0

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how to use logic array
It isn't quite clear the specifics of what you want to retrieve but for example if you wanted to get the row in frame 1 that mat...

20日 前 | 1

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How to do Downward peak detection?
You can use the MATLAB function islocalmin for example idx = 1:length(A) isMin = islocalmin(A); plot(idx,A,idx(isMin),A(isMin...

21日 前 | 0

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Problem of Nonlinear Regression
If you have the Statistics and Machine learning toolbox you can use fitnlm or nlinfit see documentation https://www.mathworks.co...

21日 前 | 0

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How to compare array's values with each other?
Staying close to what you have started here, you could put your code into a double loop, for example % assign threshold z = 10...

21日 前 | 1

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Help deal with the loop
You do not need a loop to evaluate this type of expression in MATLAB. The beauty of MATLAB is it lets you do math directly with ...

22日 前 | 0

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Which Matlab tools suit for substance manipulation and energy flow simulation?
The Mathworks Simulink program, is a very flexible, and powerful, block diagram oriented tool for simulating systems that can ...

22日 前 | 0

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Is it possible to run a function that requires input variables when they are declared later in the function?
You just need to give your first function a return argument when you call it. So the definition of your first function should...

26日 前 | 0

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