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# Jon

##### Last seen: 3 days ago
175 total contributions since 2013

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How can I seperate these number from a cell and put it into a matrix.
You will not be able to put your data from the cell array you show to a matrix because you have both numeric and non-numeric dat...

3 days ago | 0

Error, array indices must be positive integers or logical values
In your code Df is a 2 by 200 matrix not a function. It therefore does not make sense in the last line of your code to have the ...

3 days ago | 0

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Negative Eigenvalues found in 12x12 Matrix
I would trust the result of the eig function. If you do not think your matrix, cor, should have negative eigenvalues, then you ...

3 days ago | 0

How to solve this error "Not enough input arguments."
Your function requires 4 input arguments. You must have called it with less than 4 input arguments. Please check your code where...

3 days ago | 0

I cant solve linear programming
It is of course possible to have a linear programming problem that is unbounded. This happens if there are no constraints that p...

3 days ago | 0

How to write a for loop that creates a vector of [1:1000, 1001:2000,....,n]
Just to make Geoff's suggestion more concrete, suppose you had a length 100000 vector of data points. You could put this into a ...

4 days ago | 0

the meaning of basic matlab words
Are you familiar at all with "Object Oriented Programming" this is a general approach to software development used in many compu...

4 days ago | 0

How to only plot the better result from a loop of 48 iterations in a convergence plot?
You could do something like this, assuming that your output is in vector y and iteration number is in vector iterCount plot(ite...

4 days ago | 1

How to find the intersection point by plotting the red line like below?
Assuming you have the water level in a vector, lets call it h, along with the values of pExceed in another vector, you can int...

4 days ago | 1

How can I achieve Matrix-Vector element-wise operations in Simulink Matlab Function Block?
I'm not sure why the MATLAB Function block can not handle the implicit scalar expansion, but I just tried using an Interpreted M...

5 days ago | 0

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For LOOP for splitting an ECG signal into different CHUNKS
It's not really clear to me from your description what you are trying to do. From what I can infer from your description you ha...

5 days ago | 1

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How to fix the time values of repeating sequence to get triangular wave?
I'm sorry I also have no experience with Simulink for Power Electronics so I can not help you with any issues that are specific ...

5 days ago | 0

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How to fix the time values of repeating sequence to get triangular wave?
If you want to make a triangular wave of amplitude A with period T just use Time Values [0 T] Output Values [0 A] You don't h...

5 days ago | 0

Controlling Dynamic Stability Using Torque Vectoring.
MATLAB Answers is a good place to come for help with problems that you are having once you get far enough to actually be working...

5 days ago | 0

Run cmd command from MATLAB
The system command can definitely be used for this purpose. I suspect that your problem is with the string you are passing the c...

5 days ago | 0

How to create a Toeplitz matrix?
You can use MATLAB toeplitz function for this. See the documentation by typing doc toeplitz on the command line. Since your to...

6 days ago | 1

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Unable to perform assignment because the left and right sides have a different number of elements.
In your expression, the left hand side is just a scalar (only has one element) but you are trying to assign a length 4 column ve...

6 days ago | 0

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Givens rotation QR decomposition
It looks to me like your code reproduces what is in the pseudocode. Are you sure that the psuedocode that you based your code o...

6 days ago | 0

Saddle points of a 2D matrix
Here is a simple approach. Note I define a saddle point as one that is either the largest in its column and smallest in its row ...

6 days ago | 0

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I need help with the model of vertical axis wind turbine
Here's a paper that shows an example of using Simulink to model a vertical axis wind turbine: Modeling of a Vertical Axis Wind ...

6 days ago | 0

input command for more than one values
If in response to the prompt you enter a vector using MATLAB syntax, that is surround the answer with square brackets, then this...

6 days ago | 0

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How do extract rows containting certain strings from a table to make a new table?
Suppose you had a table called myTable with a column (variable name) named quality with certain words such as 'NaN' 'CORRECT' et...

7 days ago | 0

Chessboard , Euclidean and City Block distance simplest codes(functions) for all order of matrix that i can understand as i am student and at start of this language.
Please give it a try, just get started see what problems you have and where you are stuck, and then ask about these issues. Jus...

7 days ago | 0

Identify 'Presses' From Continuous Data
Let's say you call your continuous data from one channel x (you can generalize this later to a matrix over the 10 channels). Le...

7 days ago | 0

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Soliving system of ODEs written as function in simulink
You should be able to define your dynamic model (system of ode's) using a Simulink S-function block. Please see https://www.mat...

7 days ago | 1

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Trouble Solving For A Variable In A Loop

7 days ago | 0

All possible combination of variables in equation to give best result.
Assuming A and B are both column vectors You can create a table with all possible sums using total = A + B' You can then find ...

7 days ago | 0

Compute auto-covariance matrix from noise
You can generate the 5 signals in just one call to randn, for example x = randn(10000,5); Which will make a matrix with 10000 ...

7 days ago | 0

Dice rolling & loops
You can generate a vector with 10 dice rolls using rolls = randi(6,1,10) You can determine how many of the 10 rolls are eithe...

4 months ago | 0