William Rose

2007 年からアクティブ

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Does anyone know how to use an IF statement with ODE's? I am trying to create an IF statement sigma > 0 , tau > 0 if dx(3,1) > 0, dx(1,1) > 0 and sigma = 0 , tau = 0 otherwise
@Christopher, [edit: fix spelling error; no changes to code] [Edit: Change "./" to "/" inside function odefcn(), since "./" is...

4日前 | 0

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Inferring real-world coordinates from pixel positions
@Francesco, The projection equation from world (x,y,z) to image (u,v) is We can estimate A from the control points: % Contr...

6日前 | 1

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3D plot: draw xy grid line on the middle of the plot box
@Lloyd Bumm, Try grid3() on the File Exchange., by @Hristo Zhivomirov. x=-2:0.2:2; y=-2:0.2:2; [X,Y]=meshgrid(x,y); Z=-2+4*e...

7日前 | 0

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What is the purpose of the input argument 'Tolerance' in the risetime function?
@Samuel Foster, Here's an example of tolerance making a difference: t=0:999; x=(mod(t/100,2)>=1 & mod(t/100,6)<5)+0.8*(mod(t/...

7日前 | 0

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Bivariate colorscale for color plot
Another approach is to map f in one color and map g in another color, then combine them. x=-10:0.5:10; y=-10:0.5:10; [X,Y]=mes...

12日前 | 0

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H1 H2 Hv estimators all the same
@Riccardo, [Edit one sentence fo rclarity. No changes to code.] When you get coherence=1, it is an indicator that you have not...

13日前 | 0

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質問

3d plot with +Y up and +Z left
When I plot a side view of a 3D object, with +Y axis up and +Z pointing left, the axis labels are in the wrong place or absent. ...

15日前 | 0 件の回答 | 0

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Seeking Alternative Optimization Methods for a 9-Parameter Optimization Task
@payam samadi, [Edit: Some of the equations in my answer do not look right. I pasted them in. The equations looked fine in th...

23日前 | 0

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Extracting Vessel Dimensions from 2D Fluorescence Microscopy Images in MATLAB
@Alessio, Consider Better Skeletonization in the File Exchange. Please upload a frame of the raw .h5 video image. You write ...

28日前 | 0

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How to extract 3D position from the 2D projection using (an optimzation method + 3D Gaussian PDF)
@payam samadi, Good job by you to make a solid effort before asking for help on your homework. You are a good example. The p...

約2ヶ月前 | 0

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Plot legend contours messed up
@dormant, Try the attached. Good luck. Edit: Update the script, as descirbed in my comment below.

約2ヶ月前 | 1

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Max velocity on 1/3 octave band from Acceleration-Time data
@Gerald, I have been doing the same tyhing as @Mathieu NOE b ut not as quicjkly. One thing I noticed is that the line V_fft =...

約2ヶ月前 | 1

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Solve equilibrium equations in MATLAB for a quadruped robot
@idan, The same problem arises in a simple example: compute the weight on each wheel of an automobile. If you assume the car, i...

約2ヶ月前 | 0

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modulate delivers asynchronous result
@fabian hohmann, The result you observe is because the sampling rate (fsw in your code) is too low to support the extremes of m...

3ヶ月前 | 0

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How to get Pressure Sensor Resistance Values
@Brian, You have not shared any code, so I am just guessing... Maybe you are using for loop to get the resistances and plot t...

3ヶ月前 | 0

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Trying to use audiorecorder for impulse response testing in a for loop
@Aditya, I do not have an Arduino, and the only audio devices are the built-in speakers and microphone on my PC. (I know they w...

3ヶ月前 | 0

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Handling Numerical Instability in Estimating Angle Between 2D Points
@Leo, [moved my comment to be an answer, which is what I intended] You are defining numerical instability as a discontinuity....

3ヶ月前 | 1

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Fit a standard exponential fit to approximate data
@Reji G, [Fix spelling error: fit1(x,y,'exp1') should be fit(x,y,'exp1'...).] Thank you for providing Data.xlsx. data=importd...

3ヶ月前 | 0

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How do you indicate a line between a user and a GPS satellite?
@인혁 Why do you think there are errors? I modified your script slightly to display the receiver radius from Earth center, and t...

3ヶ月前 | 0

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Problem with lsqnonlin and error function implementing a bovine pericardium constitutive model
@Nicolò, can you provide file data_11122.mat?

3ヶ月前 | 1

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how to find curve fiitng equation through custom equation
@parshwa, [Edit: fix spelling.] I agree with @John D'Errico that providing your data is an excellent idea. You say "I need to...

3ヶ月前 | 0

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How i can you ode extend function to used the solution till the end of timespan and in between used the RLC, offset and phase time as parameterizng function.
@Ehtisham, It appears to me that you are solving your system in successive time segments because you have parameters (RLC and o...

3ヶ月前 | 0

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Problem with identifying the entropy stabilization point in SSA for accurate signal decomposition.
@Trais You say SSA decomposes a signal into three components: trend, oscillations, and noise. Shouldn't the sum of the three c...

3ヶ月前 | 0

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MPU6050 display raw data and fft from the reading get
@Nurul, [edit: fix spelling errors] Do you get an error when you run this code? I don't have the arduino add-on package, so I...

3ヶ月前 | 0

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Multioutput Regression models for non-linear data
@Ashritha, It sounds to me like you want to estimate the values of circuit elements (R, L, C, etc) that will fit a fit a partic...

4ヶ月前 | 0

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Kruskalwallis test for ECG signal
@Elzbieta, First, I needed to understand what the problm is. Since I needed files to run your script, I made 3 files of random...

4ヶ月前 | 0

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Calculating the aortic flow downstream valve using Womersley and 3-element Windkessel model calculations from my FSI results - Why unusual sine waves at the end of flow curve?
@Hussam, [Edit: fix spelling errors.] I have not tried to understand all of your code. There are many plots above, and I canno...

4ヶ月前 | 0

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help me to do nonlinear fitting use lsqcurvefit
@nirwana, I agree with the comments of @Mathieu NOE. He raises very good points - including the recommendation to share the s...

4ヶ月前 | 0

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Loudness Equalization Across Stimuli-Within Stimuli
@Buse, [Edit: correct spelling errors. Remove bullet point about ISO226 loudness levels, since I now see that function iso226...

4ヶ月前 | 0

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How to get correct pixel size in 2D after cut 3D voxel using obliqueslice
@Kamil, [edit: fix spelling errors (twice), no changes to code.] [Edit: Replace color images with new images that don't have a...

4ヶ月前 | 0

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