Recent questions tagged MATLAB

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matlab multiple x axis one below another

I am trying to create a matlab plot with multiple x-axis one below another and just one y-axis. I have ... something like this question for R. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matlab - How can I convert a binary to a decimal without using a loop?

I have a 12-bit binary that I need to convert to a decimal. For example: A = [0,1,1,0,0,0,0,0,1, ... bit, Bit 12 is the least significant bit. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matlab - Select largest object in an image

I am trying to find the the largest object in an image and remove any other objects in the image that are ... except for the breast region. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matlab - BSXFUN on memory efficiency with relational operations

There are mainly two things I would like to research on about here - There are six built-in relational ... for Comparing BSXFUN and REPMAT. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matlab - Calculating translation value and rotation angle of a rotated 2D image

I have two images which one of them is the Original image and the second one is Transformed image. I ... use Image Processing Toolbox functions. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matlab - How to control the margin size around subplots?

I'm plotting 5 x 3 plots using subplot command, but there are massive margins around each subplot. How do I ... colormap gray; axis image; end See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matlab - Machine learning - Linear regression using batch gradient descent

I am trying to implement batch gradient descent on a data set with a single feature and multiple training examples (m). ... (h(theta)-y)^2]). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matlab - Fitting largest circle in free area in image with distributed particle

I am working on images to detect and fit the largest possible circle in any of the free areas of an image ... method that I can explore. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matlab - reading v 7.3 mat file in python

I am trying to read a matlab file with the following code import scipy.io mat = scipy.io.loadmat('test. ... could please any sample code thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matlab - What's the "right" way to organize GUI code?

I'm working on a fairly sophisticated GUI program to be deployed with MATLAB Compiler. (There are good reasons ... windows, etc., before. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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748 views

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matlab - Convert output from symbolic math (sym) to float

My question is similar to this question but I believe it to be more general. I use Matlab's symbolic math ... access them later in my code? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matlab - Tilde character in the brackets

In MATLAB, what does the following code do: [m, ~]=func_returning_matrix() What does the tilde operator, ~, do? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matlab - Inner matrix dimensions must agree?

this is my first matlab script, so this question may seem basic and blindingly obvious, but I am a little stuck ... that I am missing? Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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969 views

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matlab - Sending data to workers

I am trying to create a piece of parallel code to speed up the processing of a very large (couple of hundred ... it send only the desired piece? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matlab - Reshape 3d matrix to 2d matrix

I have a 3d matrix (n-by-m-by-t) in MATLAB representing n-by-m measurements in a grid over a period of time. I ... *m-by-t) How can I do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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945 views

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matlab - Faster version of dec2bin function for converting many elements?

I am reading a bitmap file and converting each of the RGB values ranging from 0 to 255 to binary. So a 240 ... C++. Is this advisable? Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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768 views

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matlab - imresize - trying to understand the bicubic interpolation

I'm trying to understand the function: function [weights, indices] = contributions(in_length, out_length, ... scale, ... will be called later ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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678 views

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matlab - vectorized array creation from a list of start/end indices

I have a two-column matrix M that contains the start/end indices of a bunch of intervals: startInd EndInd 1 3 6 10 12 12 ... (i,1):M(i,2)]; end See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matlab - 10 fold cross-validation in one-against-all SVM (using LibSVM)

I want to do a 10-fold cross-validation in my one-against-all support vector machine classification in ... one-against-all classification? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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606 views

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matlab - Cost function in logistic regression gives NaN as a result

I am implementing logistic regression using batch gradient descent. There are two classes into which the input samples are ... y,theta); end end See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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712 views

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matlab - 3D curvefitting

I have discrete regular grid of a,b points and their corresponding c values and I interpolate it further to ... 379710865]; Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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620 views

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matlab - Cost function in logistic regression gives NaN as a result

I am implementing logistic regression using batch gradient descent. There are two classes into which the input samples are ... y,theta); end end See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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641 views

1 answer

matlab - 3D curvefitting

I have discrete regular grid of a,b points and their corresponding c values and I interpolate it further to ... 379710865]; Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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651 views

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matlab - Multiple plots in one figure

I have the following code and I want to combine phase space plots into one single figure. I have coded the functions, but ... *P; %dx = [dN;dP]; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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766 views

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matlab - using precomputed kernels with libsvm

I'm currently working on classifying images with different image-descriptors. Since they have their own metrics, I am ... ranging between [0,1]. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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794 views

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matlab - How to show legend for only a specific subset of curves in the plotting?

t = 0 : 0.01 : 2 * pi; s = sin(t); c = cos(t); m = -sin(t); hold on; plot(t, ... solve my problem, because the undesired red line stays visible. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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899 views

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matlab - Automatically maximize a figure

I am creating some figures in MATLAB and automatically save them to files. The problem that by definition the ... none are solving my problem. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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705 views

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matlab - How to use SIFT algorithm to compute how similar two images are?

I have used the SIFT implementation of Andrea Vedaldi, to calculate the sift descriptors of two similar images (the second ... c, d]=sift(j); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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