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lsqcurvefit help - Field assignment to a non-structure array object
Hi, I am getting the error "Field assignment to a non-structure array object" in the line I call the lsqcurvefit function and ...

5 years 前 | 1 个回答 | 0

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Non-singleton dimensions of the two input arrays must match each other using bsxfun
Hi, I have 4D data with dimensions mydata=[ 156 , 192 , 26 , 41]. I have also an array of values which I import in Matlab as ....

5 years 前 | 1 个回答 | 0

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Download Matlab 2017b for windows 10
Hi, I've tried to download Matlab 2017b but for some reason has been downloaded as dvd (please see the figure). Inside this dvd...

5 years 前 | 1 个回答 | 0

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How to reverse a vector
Hi, I imported some values as a txt file. I stored the values store in the vector called A, i.e. A = importdata('/Users/file.t...

5 years 前 | 1 个回答 | 0

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Index exceeds matrix dimensions.
Hi, I have 4D data in a Nifti file format. My code looks like this: vals = importdata('/Users/values.txt') data = load...

5 years 前 | 1 个回答 | 0

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4D matrix in .txt and .csv
I have 4D data which are 3D images + time. Data = [256,256,22,99]. I would like to save it in text file and .csv. How can I do t...

6 years 前 | 1 个回答 | 0

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Resize specific dimensions of images
Hi, I have 4D images with dimensions Data=[256,256, 36, 99]. I would like to downscale only the x- and y-dimension of this dat...

6 years 前 | 1 个回答 | 0

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Copy DICOM header and use it to different DICOM images
Hi, I have a stack of 2D DICOM images. I want to replace the DICOM header of these DICOM images (without affecting pixel inten...

6 years 前 | 0 个回答 | 0

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How to convert a nifti file to a .dat file?
Hi, I have a 4D nifti file with dimensions [256, 256, 36, 99]. I want to convert this nifti file to a .dat file. I did the fol...

6 years 前 | 0 个回答 | 0

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Read header from nifti files
Does anyone know how to read the heard of a nifti file? I load my data using data=load_untouch_nii(). When I typed data.hdr I...

6 years 前 | 0 个回答 | 0

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Calculate residuals as a single number in lsqnonlin function
I solve a nonlinear curve fitting problem using the *lsqnonlin* Matlab function. I am interested to check the residual of my...

6 years 前 | 2 个回答 | 0

2

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Question about imadjust3 function
I have 3D data. The data type is double but the values are not ranging between 0 and 1. I would like to use the imadjust3 functi...

6 years 前 | 0 个回答 | 0

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Unable to read data with .clv extension
Hi, I am trying to import multiple csv files into Matlab (.csv extension) but I am keep getting an empty structure. Follo...

6 years 前 | 1 个回答 | 0

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import multiple csv files in matlab
I am trying to import several csv files and compact all of them in a single variable called "data". The csv files are 2D ima...

6 years 前 | 1 个回答 | 0

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Load .dat file in Matlab
I have a stack of 2D images i.e. 3D data in a .dat file. Does anyone know how to load a .dat file in Matlab?

6 years 前 | 1 个回答 | 0

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3D images as a gif
I wanted to display a stuck of 3D images as a video. I have used the function *save_3D_matrix_as_gif*: <https://uk.mathwo...

6 years 前 | 1 个回答 | 0

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Calculate the mean of two dimensions in a 3D array
I have a 3D array and I want to calculate the mean of the first two dimensions along the 3rd dimension but I am getting the foll...

6 years 前 | 2 个回答 | 0

2

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svd function - Singular Value Decomposition
Hi, I want to solve the following system of equations using SVD: S = AX, where S is a 40x1 matrix (rows x columns), A ...

6 years 前 | 1 个回答 | 0

1

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Non linear least square function lsqnonlin
I was wondering if there is a way to stop the lsqnonlin function before converge to the optimal solution.

6 years 前 | 1 个回答 | 0

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Question about Parfor-loop
I do nonlinear fitting within a nested for loop as shown below: for i=1:200 for j=1:170 for k=1:50 ...

6 years 前 | 0 个回答 | 0

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Looking for the code of registration.optimizer.RegularStepGradientDescent
Hi Does anyone knows if we are able to have a look on registration.optimizer.RegularStepGradientDescent? I am interested ...

10 years 前 | 0 个回答 | 0

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Numerical integration of continuous data set
Hi all I'm trying to integrate a noisy signal composed of continuous data points, and I was wondering if there's any other wa...

11 years 前 | 0 个回答 | 0

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