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Jeffrey Clark


Last seen: 4 mois il y a |  Actif depuis 2022

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  • Knowledgeable Level 3
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Réponse apportée
Logarithmic amplitude scaling of a signal
@Lorenzo Lellini, note that your curve is assuming a full scale sweep of +/- 1 whereas sweeptone produces +/- 0.5 so you need to...

presque 2 ans il y a | 1

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""Unrecognized variable name 'Time'" I am getting this type of error during ploting , how I can fix this?
@Ritesh, if you remove the first 2 header lines from the CSV it will work properly. There is probably an alternative to have MAT...

presque 2 ans il y a | 0

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How to detect intersection of 3D rectangles that are rotated?
@Michael Ferguson, You can try the attached delaunayTriangulationIntersect.m function that I use to look for intersection of sol...

presque 2 ans il y a | 1

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scale a point cloud (enlarge or reduce)
@Alberto Acri, I don't have the toolbox you do but you should be able to expand Rowsx3 similar to this (red are added): % Creat...

presque 2 ans il y a | 0

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Plot arrow as upper limits in errorbar when I don't have lower bound
@Roberto Serafinelli, using the e = errorbar call where the inputs are given to draw individual lines (see and Multiple lines wi...

environ 2 ans il y a | 1

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How to find the y from given x on fit line?
@kivanc Koca, if you have a fit using spline, pchip, makima, interp1, or the spline utility function mkpp you can use Evaluate p...

environ 2 ans il y a | 0

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How to use Delaunay Triangulation to create a plane with constraints?
@youssef hany, if all your points are coplanar for one section (in your picture a wall, floor, etc) they can be processed as 2D ...

environ 2 ans il y a | 0

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How can I put three different tau_rms in this code and draw them in one picture? (each tau_rms = 5*10^(-9), 30*10^(-9), 80*10^(-9), when SNR_MMSE is same as 30.)
@zoopzdd, as in most cases where you want to apply multiple values in code methods invoked that aren't intended to receive multi...

environ 2 ans il y a | 0

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Problem with threshold in if statement
@Siegmund Nuyts, since you are negating the values input to Find local maxima - MATLAB findpeaks (mathworks.com) when looking fo...

environ 2 ans il y a | 0

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Need help with an error
@Ryan W, try this instead - you need to look at all possible sequential value sets so a recusive function seems applicable. This...

environ 2 ans il y a | 0

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i want to add a loop so that it works like this.
@SAHIL SAHOO, since Gt(1) is not changed after the initial setting from the y input, and Gt(i+1) is not refereced before where y...

environ 2 ans il y a | 0

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constantGammaClutter doesn't take account of Doppler shift of the frequency due to radar motion
@Andrey Senkov, this bullet below from the description of Simulate constant gamma clutter - MATLAB (mathworks.com) indicates it ...

environ 2 ans il y a | 1

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I'm getting an error (Index in position 1 exceeds array bounds)
@Majd AG, find is going to look at the entire signal as if you had written signal(:) > max_thresh; find will return values beyon...

environ 2 ans il y a | 0

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Optimisation of a 3 vector velocity
@Olivia Davison, perhaps you are saying x, psi, gamma and velWind are related, one for each object: x(N,3), phi(N,1), gamma(N,1)...

environ 2 ans il y a | 0

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How to plot a second coordinate frame using plot3?
@Jimmy Neutron, your Z rotation matrix doesn't agree with your Z rotation formula. Either could be correct depending if you want...

environ 2 ans il y a | 0

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How to solve this issue?
@Nisar Ahmed, I think what you want to do to have Simulink outputs grouped across multiple runs is something like the example in...

environ 2 ans il y a | 0

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Error in finding phase noise of an electrical oscillator...
@khan, my guess is that your data frequency is not compatible with the other parameters; the example looks at a signal of 2.7G a...

environ 2 ans il y a | 0

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Looping if between 2 numbers
@jason, the and operator (&) produces a logical (true/false 1/0) result - not a range of values. Please look at MATLAB documenta...

environ 2 ans il y a | 0

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How to assign to a collection of object properties stored in an object array, using a numerical array of compatible type and size (one statement, without for-loop!)?
@Peter, without getting into your specific code I suspect that [obj.objArray(IndexSet).tstmp] = T(1:nI) is incorrect in that the...

environ 2 ans il y a | 0

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How to shade the same area in each subplot in a 5x1 Figure?
@S_G, if you use debug to step thru the code you will see that the 2nd subplot initially gets the shading, but then line plotted...

environ 2 ans il y a | 0

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How to solve 'Error using image Complex values are not supported. Specify the color data as numeric or logical values.'
@Nisar Ahmed, I don't have the toolbox for ksdensity but the imaginary parts of SW_OPT are insignificant relative to their real ...

environ 2 ans il y a | 0

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How can I evaluate an Simulink.data.Expression in a MATLAB script
@Karsten Gordon, Evaluate MATLAB expression in data dictionary section - MATLAB evalin (mathworks.com) or Evaluate MATLAB expres...

environ 2 ans il y a | 0

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How can I read data in backgorung from my NI hardware?
@Jan Tomaszewski, try moving the device setup into your main program and pass that dq (and maybe ch3) as a parameters to the wor...

environ 2 ans il y a | 0

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My snipet code have 3 harmonics, second's amplitude is maximum, but abs(fft(X)) returns first as maximum. I use MATLAB R2022a.
@Georges Theodosiou, you don't have enough samples to easily interpret the abs(fft), if you change Segm = 1:2048 to use 16384 yo...

environ 2 ans il y a | 0

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fill value that has different size of array
@상훈 송, trying to save results directly into part of an array will not work unless you know exactly what the size of the return w...

environ 2 ans il y a | 0

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Converting a list of binary numbers to a decimal numbers
@Martin Mittrenga, read up on num2str and strsplit which don't really support vectors of things. One way to do this without loop...

plus de 2 ans il y a | 0

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Fast fourier tranformer for Time series data
@Mohammed Lamine Mekhalfia, I think the answer provided by @dpb is valid although @Bjorn Gustavsson has valid points as well. By...

plus de 2 ans il y a | 0

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is this expression right in MATLAB?
@Aisha Mohamed, what you are looking for is known as a Laurent polynomial - Wikipedia. The MATLAB Wavelet Toolbox has functions ...

plus de 2 ans il y a | 0

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How to evaluate the computation time of some codes in parallel properly?
@Slivery, when using the cputime difference method don't forget to divide by 21 (the number of executions being averaged). Depen...

plus de 2 ans il y a | 0

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I want to find unique value(s) based on a given conditions
@Tulkkas, this should do it (I added a randomize of your sorted data since first, if it would always be sorted skip as indicated...

plus de 2 ans il y a | 0

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