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Weiqian Jiang


Last seen: casi 5 años hace |  Con actividad desde 2015

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how to use octave on hackerrank website?
hi there, now I am trying to use octave to do the hackerrank test, but everytime I click on the 'Run code' button, it always sa...

casi 5 años hace | 0 respuestas | 0

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How to know the p-value for each coefficient in the regress function?
Hi there, I'm trying using function 'regress' to deal with 4-variant linear model fit, as far as I know, the regress function ca...

casi 7 años hace | 0 respuestas | 0

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Is 'inputsinglescan' a single sample of the sample rate?
Hi there, i've some doubt about the inputsinglescan in the DAQ toolbox, for example, if the sample rate of the NI device object ...

más de 7 años hace | 0 respuestas | 0

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Multi selection about listdlg
Hi there, when I use 'listdlg' to do the multi-selection, the only 2 ways I've found is either by push the 'select all' button, ...

más de 7 años hace | 0 respuestas | 0

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about saving figure while doing other things
Hi there, I've replaced the saveas function with print function, and used *'figure(handle) and print(handle)'* instead of *'hand...

alrededor de 8 años hace | 0

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about saving figure while doing other things
Hi there, I used ' *saveas(gcf,'pic_name')*' to save my matlab figures, when running my code, I watched movies on computer, to m...

alrededor de 8 años hace | 1 respuesta | 0

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How to save current figure as a picture such as png or bmp?
And this is the distorted picture I've saved <</matlabcentral/answers/uploaded_files/64550/0828_m1_PR.bmp>>

alrededor de 8 años hace | 0

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How to save current figure as a picture such as png or bmp?
Hi there, I've used the 'print' and 'saveas' function to save my current figure as a picture, but I found the picture I've saved...

alrededor de 8 años hace | 2 respuestas | 0

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How to plot a picture in squared sized using imagesc?
<</matlabcentral/answers/uploaded_files/59908/1.bmp>> Hi there, i'm using imagesc to plot a colormap, in which the x/y data a...

más de 8 años hace | 1 respuesta | 0

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How to draw the audio track from a video which contains audio?
Hi there, I want to draw the audio track and analyze it from a video which has audio, but it seems that the "videoreader" cannot...

más de 8 años hace | 1 respuesta | 0

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How to test the difference between 2 groups of 2D matrix?
Hi there, I have 2 groups of 2D matrix, which stand for two groups of points in 2D coordinate,i.e. group1:[x1,y1],[x2,y2],[...

más de 8 años hace | 2 respuestas | 0

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How to use imellipse for GUI?
Hi there,I'd like to extract a ellipse-like roi area, but the "imellipse" I noticed cannot include the theta angle, so I wonder ...

más de 8 años hace | 0 respuestas | 0

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Fast radial symmetry transform to distinguish the pupil
Hi there, i've read the paper about fast radial symmetry transform(Loy and Zelinsky) but don't understand well, i wonder if anyb...

casi 9 años hace | 1 respuesta | 0

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How to fit an ellipse based on marginal data with some noisy data?
Hi there, I want to fit an ellipse with some marginal data sets, but there are some noisy data that can have a great influence o...

más de 9 años hace | 0 respuestas | 0

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How to divide a matrix and find the index?
Hi there, I have a matrix such as a = ['hello' 'hi' 'bye';1 3 5], i want to use the 2nd column to categorize the matrix, but wh...

más de 9 años hace | 1 respuesta | 0

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