# Wick

Last seen: 7 meses hace Con actividad desde 2018

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Bug in triangulation pointLocation calculations?
I have a snippet of code that is a simplifcation of a problem I've found using the pointLocation feature of MATLAB's triangulati...

casi 2 años hace | 0 respuestas | 1

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What, if anything, can be done to optimize performance for modern AMD CPU's?
The Accepted Answer by @NedFlanders is the best solution so far. Use that one. But in the comments of that answer, MathWorks s...

más de 4 años hace | 2

Pregunta

Limitation to Hidden Line Removal?
I'm trying to render small objects and large objects together. I'm using the camera commands to restrict my field of view such t...

alrededor de 5 años hace | 0 respuestas | 0

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Odd Subplot Behavior - Script interpreter bug?
I've got a script that produces some plots. It's nothing fancy. I haven't included all the variable definitions in the code snip...

casi 6 años hace | 0 respuestas | 0

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How would you make a contour plot of a 3 column matrix?
This plots the original data, the mesh that interpolates that data, and the contours it creates. If you want it to extrapolate o...

alrededor de 6 años hace | 3

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find indices of row subsets
Here you go. At the sizes you suggested, this shouldn't take too long. It has a single 'for' loop that cycles through the unique...

alrededor de 6 años hace | 0

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Using logical indexing to get subset of matrix rows which give desired output from function
I'm using random numbers just to have something to work with. The trouble is 'dot' doesn't like when the matrices aren't the sam...

alrededor de 6 años hace | 0

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How to find elements of two different matrices that meet multiple conditions and store those values in one matrix?
Logical indexing is your friend. I don't know what your conditions are so I'm just going to make a few conditional statements be...

alrededor de 6 años hace | 0

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cannot open vlc from matlab using system command
[status, msg] = system('/usr/bin/vlc test.y4m &') Note the _single quotes_ on either end of the command to be sent to the ...

alrededor de 6 años hace | 0

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How to plot a sphere with lines of latitude (constant phi) for a given center (xo, yo, zo) and radius (R)
clearvars R = 1; xo = 10; yo = 20; zo = 30; num_angles = 3600; latitudes = -80:20:80; % la...

alrededor de 6 años hace | 0

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How do I store result from a loop into matrix?
The first column of S can be indexed S(:,1). The nth is S(:,n); Instead of making 360 different matrices with different names...

alrededor de 6 años hace | 1

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How To Plot Data From A Cell Array Containing (x,y) Coordinates?
Niv, I assume you're putting things into a cell array on purpose. That's an unnecessary step since each element is the same shap...

alrededor de 6 años hace | 0

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How to plot volumetric concentration points in a slice meshgrid?
Ok, looks like you've got your volumetric plots going. It's easy from here. First, to display a color scale, the command is ...

alrededor de 6 años hace | 0

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Energy of a photon
*&#9883 &#9762 &#9883 &#9762 &#9883 &#9762 &#9883* Given the frequency F of a photon in giga hertz. Find energy E of this...

alrededor de 6 años hace

Resuelto

Extra safe primes
Did you know that the number 5 is the first safe prime? A safe prime is a prime number that can be expressed as 2p+1, where p is...

alrededor de 6 años hace

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MATLAB question regarding loop
In general, when inside a loop you can keep track of "something" simply by assigning that value to an element in a vector using ...

alrededor de 6 años hace | 0

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please help to solve this error " In an assignment A(:) = B, the number of elements in A and B must be the same." . code is attached in zip file.
You're trying to assign a [1, 2] vector to a [1, 1] scalar. x_temp(stage) = abs(x_temp1).*y; 'stage' is a single value,...

alrededor de 6 años hace | 0

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Combine for loop output??
If you're not trying to be pretty or efficient you can do the following: for draw=1:number_of_lines ...

alrededor de 6 años hace | 0

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Cropping xyz data in MATLAB
You're trying to extract the data from the image file? imread will work find for this purpose. It will return an mxnx3 varia...

alrededor de 6 años hace | 0

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Help... Getting errors with v_plot and x_plot
Your code was quite difficult to understand without proper formatting and extra '*' spread around. I cleaned up the lines and ra...

alrededor de 6 años hace | 0

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Diagonal of a non-squared martrix
MATLAB has a built-in function for the identity matrix, 'eye'. There are two diagonals in a non-square matrix. We'll set both, o...

alrededor de 6 años hace | 0

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How can I compute a contour bounded by the combination of multiple contour lines?
Just saw that you had posted a response that the noise in the small x isn't a concern. Well, I've got an overkill of overkill so...

alrededor de 6 años hace | 0

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How can I compute a contour bounded by the combination of multiple contour lines?
The solution is to find a convex hull that encompasses all the points from all the contours. An example using the 'peaks' func...

alrededor de 6 años hace | 0

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X-axis Labeling
I think the problem has to do with the fact that when there are 1000 elements in an array, there are only 999 gaps between those...

alrededor de 6 años hace | 0

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Why am I not getting the correct Phase angle when doing FFT
Without seeing your data I'm guessing you're not measuring the frequency at exactly the frequency the signal was generated at. T...

alrededor de 6 años hace | 0

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Help with updating slice plot in for loop
You just need to draw a new slice with the new V_new. if true [X, Y, Z] = meshgrid([0 x], [0 y], [0 z]); h = slice(X,Y,Z...

alrededor de 6 años hace | 0

Respondida
How to plot animation plots?
If you're just looking to animate what the plot is doing like in the video, just include a 'drawnow' command inside a for loop. ...

alrededor de 6 años hace | 1

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3D plot confusion
Assuming you're making the exterior of the ship from mesh or surface commands. Those commands will connect dots and make patches...

alrededor de 6 años hace | 0

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How can I read, in matlab, an image I have on my desktp with the imread () function?
You must put the name of the image in single quotes in the command. If the image is in a path beneath where MATLAB is currently ...

alrededor de 6 años hace | 0

Respondida
Good day im trying to plot a graph of the effect of distance of separation between the TX/RX and the receive signal strength, using Friis's free space equation. I am having an issue with the graph when my pr is in db unit.