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How to find the 5 minimum values in a multidimensional matrix and the indices to which these entries correspond.
@Charles Howman, A=rand(3,4) [r,c]=size(A); k=5; %number of values to find [minval,idx]=mink(reshape(A,[],1),k); minrow=mo...

2 months 前 | 0

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How to solve gimbal lock logically?
@Kang Geonhui, My lecture notes on rotation matrices are attached. Lectures 2 and 3 include discussion of helical angles. The...

2 months 前 | 2

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How to solve gimbal lock logically?
@Kang Geonhui, Yes, your plot illustrates what happens when you are near "gimbal lock". Interpolation is not a good idea. ...

2 months 前 | 2

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Find Yaw and Pitch of center point of a line segment with respect to static frame
@VR, It is not possible to "calculate the position and orientation (roll, pitch, yaw) of the center point". A point does not h...

2 months 前 | 0

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How to write a for loop to generate a new set of initial conditions based on a input value that changes over different time intervals.
@Ron_S, See attached code. I think you will be able to uunderstand what I have done by comparing the code to your version. It...

2 months 前 | 0

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Calculate spectrogram with logarithmic-spaced frequencies
@dormant, I agree that the bottom plot in your example, which should have the frequencies evenly spaced on a log scale, appears ...

2 months 前 | 0

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rotated plot gone wrong
@Sonia, Change [w,rh]=freqz(h,1,64); to [rh,w]=freqz(h,1,64); Good luck.

2 months 前 | 1

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A function related with speed light and time
@Lewis HC, It is nice to see that you have made an attempt before posting your question. @Walter Roberson is exactly right as ...

2 months 前 | 0

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Cross-correlation signal alignment
@Albert Zurita [edit: Add comment about circular correlation; correct typos.] You need to use a circular correlation, because ...

2 months 前 | 0

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How to graph cdf?
@Estela, I agree with the comments of @John Morris. The probability that a random number generator for a continuous distributi...

2 months 前 | 0

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How to find the QRS complex for this ECG signal?
@Susan, Perhaps the comments above constitute an answer to your question. ECGs=load('ECG'); ECG=ECGs.ECG; L = numel(ECG); t...

2 months 前 | 0

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Interpolating Data in 2D Mesh or Surf Plot?
@Sees, [edit: I hit Submit belfore I was done] You say you want to interpolate z values at the points where z=0, and you want...

2 months 前 | 0

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How to use pwelch for PSD?
@Tran, See my recent reply to @vo, here, regarding the use of Welch's method for EEG analysis. You can get identical results ...

2 months 前 | 0

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PSD with Alpha(8-13HZ)
@vo, [edit: replace 8 with flo and 12 with fhi in the code to compute vector fA.] The data file you gave is a structure. The ...

2 months 前 | 0

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Least Squares method code
@A, [edit: I adjusted the fprintf() lines to produce better output.] X = [0.8; 1.4; 2.7; 3.8; 4.8; 4.9]; Y = [0.69; 1.0; 2...

2 months 前 | 0

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Get envelope of a cyclic curve
@Nikesh Maharjan, Use convhull() to find the smallest convex shape that wraps around the points. See code below. data=xlsread...

2 months 前 | 1

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Find the max psd
@vo, [This answer is a copy of my comment above. I intended my comment to be answer, but I posted it in the wrong place.] I a...

2 months 前 | 0

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How to catalogue a dataset during different stages of data filtering?
@Carter Hoffman, Here is an example. data1=randn(1000,5); %1000x5 array of random numbers size1=data1(:,5); ...

2 months 前 | 0

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how to ues t_tide
@ke, the t_tide package includes may functions including t_tide.m. The code for t_tide.m has extensive comments describing its ...

2 months 前 | 0

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How to plot the diffusion curve for different timesteps?
@Emily, I assume this is 1D diffusion, and you want to plot concentration versus position at t=0, t=500, t=1000, ... Before y...

2 months 前 | 0

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third-order Newton’s interpolating polynomial
@ِAbo Alqahtani, Here is the start of a solution. You will learn a lot more about Matlab by finishing it yourself. Good luck...

2 months 前 | 0

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Extract of data for the last time step
@University Glasgow, Please post the simplest possible code example that illustrates the issue you have. When you include code, ...

2 months 前 | 0

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How to plot a cylinder from a specified axis
@Telema Harry, r = 20; p0=[25,25,0]; %base location [X,Y,Z] = cylinder(r); h = 80; Z = Z*h; X=X+p0(1); Y=Y+p0(2); Z=Z+p0(...

2 months 前 | 0

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How to change the visualization from lines to a patch
@Amanda, To help me create the maze, I made the image below. It could be helpful to future maze makers. Then I wrote a main ...

2 months 前 | 0

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Parameters seem to not be optimizing in fmincon
@Joshua Scott, Here is what I understand from reading your code. Correct me if I am wrong. Function Posterior3(data, idx, para...

2 months 前 | 0

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How do you plot a wave rose/polarhistogram?
@Whale_Shark, Here is a script that plots a regular histogram of wind direction and the same data in polar form. Data is from ...

2 months 前 | 1

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Creating a figure with multiple raincloud plots with the same y-axis
@Eleonora Montagnani, It would help if you woudl provide a drawing or other image of what you want. It would also help if you ...

2 months 前 | 0

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What's the simplest way to determine the mass of a sphere from a plot of its density varying in r?
@Alain Vella, I agree with @David Hill, except you want to multiply the density at each value of r by 4*pi*r^2*dr, then add the...

2 months 前 | 0

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How to know what pixels where compressed and not compressed in a image?
@Hudson Romualdo, It is not true that specific pixels are compressed or not compressed whn an image is compressed. The JPEG al...

2 months 前 | 0

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How to pick group sum values from an array
@Poorna Durga Geesupalli, [edit: correct a typo in one of the comment lines in the code, fix indenting, add comments] Xs='1111...

2 months 前 | 0

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