problem getting correct indices of a matrix
Try this maybe? odif = find(o~=on); % element index: combos with O==O pdif = odif(find(p(odif)...

más de 7 años ago | 0

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Inverse cosine of complex numbers
I know why! You were close, but you didn't quite replicate the definition in the documentation correctly. <</matlabcen...

más de 7 años ago | 0

Error using meshgrid function.
The reason is this. Lets say I make two 500x500 matrices using the following. A = ones(500,500); B = 4*ones(500,500)...

más de 7 años ago | 2

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Undefined function 'yout' for input arguments of type 'double'
*yout* is not a default Matlab function and hasn't been saved as a variable yet either. You, or a peer/coworker must have writte...

más de 7 años ago | 0

How do I removed warning dialog popups?
Use find and replace and you can't possibly miss any... :) Ctrl+F Find: warndlg Replace: %warndlg There are also plenty...

más de 7 años ago | 0

I have trouble with cell arrays
Is this what you are looking for? a = {0 0 0 0}; b = {1 1 1 1}; c = {'1' '2' '3' '4'}; d = {'look,';'this';'has';'...

más de 7 años ago | 0

How can I "draw" a 2D figure if I know all of its points?
*The greyed out text is all you should have to type to make what you want.* First assign the data to an 'array', or also call...

más de 7 años ago | 8

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Question

title('string1_string2'): Stop automatic subscripts?
I have a code that goes through _many_ files and creates _many_ plots that I distribute to different users. The plots are automa...

más de 7 años ago | 3 answers | 0

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Change plotyy axis properties
Click the plot that you want to change first. gca selects the most recently 'active' one. Clicking one will make it the 'acti...

más de 7 años ago | 0

Cell contents reference from a non-cell array object.
Don't use the curly brackets. That tells Matlab its a cell when its not. It is an array. Write like this dist= sqrt((X(i)-X...

más de 7 años ago | 6

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how to search values?
To list all variables in your workspace variables = who; With this, you can loop through every variable, and check if it...

casi 8 años ago | 1

How to use symbolic variables and functions (Syms) in a Simulink Matlab Function?
Example equation: abs(x+1) + abs(5x-1) = 6 How to solve (Here, I look for real solutions specifically): syms x real; ...

casi 8 años ago | 0

Area between baseline and data peak
The area under a curve is the definition of an integral. You will want to take the integral and subtract the baseline * baseline...

casi 8 años ago | 0

How to plot figure for multiple values
When a figure is open, use hold on before plotting to keep putting more plots on the same figure

casi 8 años ago | 1

Attempt to reference field of non-structure array.
Accessing lp.lr is your problem. First make sure this is really what you meant to type. If it is, make sure lp.lr really exis...

casi 8 años ago | 0

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How can I get the rest of the function to quit once a sound file is done playing out?
If you use the *audioplayer* function you can use the stop function to close the image. StopFcn - Function to execute o...

casi 8 años ago | 0

FIND requires variable sizing
Have you tried what this guy did for a similar situation? http://stackoverflow.com/questions/19369205/matlab-error-find-requi...

casi 8 años ago | 0

Question

Creating a simple contour plot / Heat map
I have edited this question to try to make it more clear: As an example, I have the following arrays: a = 1 ...

casi 8 años ago | 1 answer | 0

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How to calculate mean or variance in a string ?
You can convert to ascii equivalent, then find variance. jumble_text = 'alskdjbfalksjbdf' ascii_text = double(jumble_tex...

casi 8 años ago | 0

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Problem related to legend
I looked at your code and know exactly why your legend is doing this. Early on in your code, you used this command four times...

casi 8 años ago | 0

How to put vectors inside a matrix
You can make a 3d array where each slot from a 10x10 matrix has its own vector with the following syntax. matrix(1,1,:) = ...

casi 8 años ago | 0

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Why is MATLAB continuously asking me to activate when launched?
In my experience that has happened when its not able to locate the license file. You may already have it though. If you are w...

casi 8 años ago | 0

sprintf('%d',x) prints out exponential notation instead of decimal notation
Use f instead of d for floating point notation will stop the scientific I believe. sprintf('%f',1.05*100) sprintf('%f'...

casi 8 años ago | 3

How to interpolate arrays for smoothening?
To interpolate an array, you need the following X: An array of data, lets call it your independant data. Y: An array of da...

casi 8 años ago | 0

Could I use a dynamic character or string in a for loop to call a variable with different name?
Use *eval* , Its really easy! Reads a string as a variable. Here is an example. Using the base 'var', I increment the variabl...

casi 8 años ago | 1

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What is changing in R2014b?
Release notes can be found here http://www.mathworks.com/help/matlab/release-notes.html They are not yet available for 201...

casi 8 años ago | 0

Find closest value in array
This finds the value in N which is closest to the V value I am calling. N = [1990 1998 2001 2004 2001] V = [2000 2011 ...

casi 8 años ago | 28

how to create initial population of 100 random numbers
You can generate random number grids using the function *rand* rows = 3; columns = 3; Numbers = rand(rows,columns...

casi 8 años ago | 1

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