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William Rose


Active since 2007

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Answered
How can I overlay vector arrows to an image of a 2D matrix?
@Shai Katz, the quiver command automatically scales the lengths of the arrows so that they do not overlap. Therefore you do not...

ungefär 9 timmar ago | 0

Answered
How do I calculate the volume between two 3D-surfaces?
@Birgit, See attached script. It approximates the volume between the surfaces. I notice that the x-coordinates of the points ...

2 dagar ago | 0

Answered
How to use use an anonymous function to fit data based on the fittype and fit functions.
@payam samadi, I think the manual page examples for this are pretty good. a=1; b=2; c=-1; d=-2; e=3; xdata=-3:.03:3; %ydata=...

2 dagar ago | 0

| accepted

Answered
How do I plotting a 3 column matrix
@Carl Marnewick, Yes it is possible. Search the Matlab file exchange for "ternary plot". You will get multiple hits, such as ...

5 dagar ago | 0

Answered
Plot last point of column
@Ruben Garcia Paba, Your script has an error at line plot(Time, ( x ((i-1)*tl+1:(i-1)*tl+tl,1)), '', 'LineWidth',1.0) becaus...

5 dagar ago | 0

Answered
Isosurface plots appear 2d when used with subplot
@Irem Altan, I find that if I click twice on the 3D rotate icon above each plot, I am able to rotate thenm. Here is a screensho...

5 dagar ago | 0

Answered
The Normal Equation and QR My Solutions
@Doga Ersuz, It looks like your professor has provided a partial script in which you must fill in the right hand side on lines 6...

7 dagar ago | 0

Answered
What is the difference between backward slash vs forward slash in MATLAB?
@Jamie Al, X=A\B computes X=inv(A)*B. Y=A/B computes Y=A*inv(B) A=rand(2,2); B=rand(2,2); X1=A\B X2=inv(A)*B Y1=A/B Y2=A...

7 dagar ago | 0

| accepted

Answered
how can integrate black body spectrum in frequency with lowest limit has energy as 13.6 eV in matlab
@Mahima Mohan, You have to specify the temperature of the object and the limits of integration. Your quesiton makes it sound l...

10 dagar ago | 0

| accepted

Answered
Superimposing/Overlaying Points on a Graph
@N. Alfred, to make the plots "appear as though there was just one", we should identify identiy the R-waves, use those to chop t...

11 dagar ago | 0

Answered
How to shift array circularly using optimisation algorithm?
@Dynamic, Here is a script that demonstrates how you can find the best shift of a 3D array. In this script, I generate a 3D ar...

14 dagar ago | 0

Answered
I'm experiencing multiple errors with my MATLAB
@Dylan Longoria, I cannot tell what you want help with. Please post a concise version of the error you are getting, and what ...

14 dagar ago | 0

Answered
Using gyroscopic measurement to rotate image
@Joao Paulo, [edit: correcting my typos] Please describe what you are trying to accomplish with imrotate. You say you have co...

15 dagar ago | 0

Answered
Plotting large data set within for loop
@Erin, I admit there are some things I don;t understand about your code. One thing I notice is that you have for ijk=numCol...

17 dagar ago | 0

Answered
(PCA) How do I find out if principal components (number of significant coefficients) change over time?
@lil brain, If your hypothesis is true, then the percent of variance explained by the first M principal components (where you c...

24 dagar ago | 0

Answered
How can I plot a three-species Lotka-Volterra model?
@Hagen Gersie, The answer from @Sam Chak is excellent . It has the virtues of conciseness and clarity. You may be wondering wh...

26 dagar ago | 1

| accepted

Answered
How to identify each polyshape independently.
@LUIS MARIA ROSETY BERNAL, Please share the matrix of vertex coordinates and the connectivity matrix that accompany the figure...

26 dagar ago | 0

Answered
How I can plot this equation ((1-e^-a)^m)
@Aya Emam The plot you provided has on the horizontal axis. Therefore define x, for use as the horizontal coordinate for plot...

29 dagar ago | 0

| accepted

Answered
low pass filter coding that received white noise as a input
@Muhammad Asad, You have specified a low pass filter with a cutoff frequency of radians per unit time. Since you did not spec...

29 dagar ago | 1

Answered
My signal after filtering gets attenuated
@Mariam Atef, please include a short .wav file so we can run your code. Please post the most simple possible version of your co...

29 dagar ago | 0

Answered
I need to extract specific data and sum them up in different variables
@Laura Lennuyeux-Comnene, I think I and others will be able to understand you problem better if you post a spreadsheet with col...

29 dagar ago | 1

Answered
How I can plot this equation ((1-e^-a)^m)
@Aya Emam, First you need to decide if you want a surface plot, with two independent variables, or a line plot, with one indep...

29 dagar ago | 1

Answered
calculation of a derivative writing a function
@Zeynep Toprak, Why will maximizing U with respect to help you find ? You said you cannot write the code for properly. Do...

29 dagar ago | 0

Answered
How to create stereoParameters with known rotation and translation matrices, for rectification
@C.S., I am surprised your code runs, because lines 2 and 3 call a function by the wrong name - unless you wrote two functions ...

ungefär en månad ago | 0

Answered
Equation for Matlab Code
@David Kendal, Suppose you want a signal that starts at 20 Hz and goes up to 10000 Hz at a rate of 500 Hz/sec, and you want a ...

ungefär en månad ago | 0

| accepted

Answered
Solving set of differential equations
@mohamed talha, @Torsten is exactly right, and @Torsten is incredibly good at quickly seeing the key thing to do. In case it i...

ungefär en månad ago | 1

| accepted

Answered
How to get the coordinates (lat, lng) of the four corners of an image in MATLAB and display them together with the image?
@Cristel Esmerna, [edited: corrected typos] Let's assume you know the field of view (FOV), in degrees, of the drone camera. Ty...

ungefär en månad ago | 1

Answered
how does the xcorr fun works and what is the difference between corr and xcorr?
@tony jubran, by default, xcorr() computes the cross correlation at all possible overlap values for two signals. If x and y are...

ungefär en månad ago | 0

Answered
how does the xcorr fun works and what is the difference between corr and xcorr?
@tony jubran, [edited to crrect typos] @Matt J's references are exactly right. Here is an alternative, less precise, descript...

ungefär en månad ago | 0

| accepted

Answered
Bivariate Markov switching auto regressive model
@Marco Santorsola, Please post the equations describing the evolution of the two variables of the bivariate Markov process. Si...

ungefär en månad ago | 1

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