Answered
Read all text files in folder (nonsequential)
Based on what you said, if you have all the files in the same folder, you can open the folder in MATLAB and use <http://www.math...

10 years ago | 0

Question

Trying to open a .dll file in MATLAB but I'm unable to. The error shown is "undefined function 'simplelw' for input arguments of type 'double'."
Basically, I have this script and my line of code is: output=simplelw(sizex,sizey,seedx,seedy,wghtCoA,wghtCoB,wghtCoC,wgh...

10 years ago | 1 answer | 0

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answer

Answered
Symbolic derivative of function using diff()
Why don't you just tell diff to take the second derivative immediately? Look under the Higher-Order Derivatives subsection for ...

10 years ago | 1

Answered
Integration of a curve
You can use the <http://www.mathworks.com/help/matlab/ref/trapz.html trapz> function to give you the area under the curve. In th...

10 years ago | 1

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Answered
From Acceleration to Displacement Trapz Function
Consider using the <http://www.mathworks.com/help/matlab/ref/cumtrapz.html cumtrapz> function to find the displacement. % D...

10 years ago | 0

Answered
Undefined function 'shortestPath' for input arguments of type 'double'.
You don't have the matrix (I assume) shortestPath or N_cities defined anywhere in your code. So it's either a global variable or...

10 years ago | 0

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Answered
How can I relate points of different matrices ?
If you know exactly what you want to switch, follow this example: A=[1 1; 2 2; 3 3] And you want to switch row 1 with ro...

10 years ago | 0

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Answered
How to find the indices of element occuring once in a vector?
If you're looking specifically for the value of -1, you can use the following: index1=find(A==-1)

10 years ago | 1

Answered
Export data from matlab to excel file
You can use the <http://www.mathworks.com/help/matlab/ref/xlswrite.html xlswrite> built-in MATLAB function and specify the file ...

10 years ago | 0

Answered
how can i show the result parameters in workspace?
You can do as Geoff mentioned in the comments. You can also tell the m file program to display the required values using <http:/...

10 years ago | 0

Answered
How to save multiple images in a loop without over writing the previous ones?
Have you considered creating a 3D matrix with pages? Something like initializing a loop variable for each image? For example: ...

10 years ago | 0

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Answered
Save data from a for loop in the same file
I know there is a way to do it, but my brain is failing me at the moment. What you can do instead is hold all the T values in a ...

10 years ago | 0

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Answered
Filter out negative values
You can try using the <http://www.mathworks.com/help/curvefit/subplus.html subplus> function. For example, you would use ...

10 years ago | 1

Answered
view full matrix and trough columns
I'm not sure if you can make it scroll through the screen, but you can adjust the font size on your console so that all the numb...

10 years ago | 0

Answered
How to store values from a loop?
There are two ways to do this, the following is the less efficient way x=[]; if true for y=2:0.1:10 x=[x; fzero(@(m) Y(m...

10 years ago | 2

Solved

Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

10 years ago

Answered
64-bit MATLAB student version
It seems that the only available version is 32-bit based on this <http://www.mathworks.com/matlabcentral/answers/94005 post>

10 years ago | 0

Answered
How to show exact answers in MATLAB
Why don't you try an approach where you use square the matrix to find out what the numbers are? For example MatrixSquare...

10 years ago | 1

Answered
how to write a program to double integrate sin(omega*t+epsilon)
Look at the <http://www.mathworks.com/help/matlab/ref/integral2.html integral2> function

10 years ago | 0

Answered
Going up from negative in for loop counter
When you plot, you`re only plotting the last point because the variable y is inside the for loop (and is not a matrix). Other th...

10 years ago | 0

Answered
how can i display and customize axis values in imshow image
axis on In the command window should give you the result.

10 years ago | 2

Question

What happens if a MATLAB executable (GUI for example) runs into an erro while running?
Hello, If I were to compile an executable (GUI for example) which asks the user to load a file, then, when processing the dat...

10 years ago | 1 answer | 0

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Answered
Undefined function 'curveintersect' for input arguments of type 'double'.
curveintersect is not a built-in function in MATLAB, so you cannot use it unless you have made a function file yourself. Perh...

11 years ago | 0

Answered
Changing a specific value in a matrix
Let your data be in matrix A, and x,y are the indices where you want to change the value A(x,y)=2 %2 is just a random numbe...

11 years ago | 1

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Answered
starting MATLAB and not experienced in programming
I would suggest starting with these: http://www.mathworks.com/help/pdf_doc/allpdf.html

11 years ago | 0

Answered
Save While-loop to vector
Change it to the following: VelocityVector=[]; while Velocity2>=-20 Velocity2=hastighet(acceleration(0,m,g),t,v0,t0); ...

11 years ago | 4

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Answered
Non continous range random number generation
If you have the statistics toolbox, you can use the following idea: randsample([2 3 5 6 7 8 9 10], 5, 1) This produces 5...

11 years ago | 0

Answered
How can i plot peaks?
MaxValue=max(d); IndexMaxValue=find(d==MaxValue) % Creates a red circle where the max is. plot(handles.axes1, omega.*t(Inde...

11 years ago | 0

Answered
finding the string from the text file
A=fileread(filename) B=strfind(A, WordString) I would suggest looking at the <http://www.mathworks.com/help/matlab/ref/str...

11 years ago | 1

Answered
I am unable to store values for every iteration, values are overwritten in each iteration.
This is only one of *many* ways (I would suggest pre-locating but I need more of the code) *Before *the for loop, add this line...

11 years ago | 1