Answered
Intra-class correlation and ANOVA for multi-class classification?
Does somebody have a hint? Would really appreciate it.

9 years ago | 0

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Intra-class correlation and ANOVA for multi-class classification?
Hello I have trained and evaluated with leave-one-out cross-validation classifiers (SVM, logistic regression, deep belief net...

9 years ago | 1 answer | 0

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Which statistical measures for 4 class classification?
I have a classification task with 4 classes which I solve with machine learning classifiers (SVM etc.). Which statistical mea...

9 years ago | 0 answers | 0

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Reducing dimensionality of features with PCA
I'm totally confused regarding PCA. I have a 4D image of size 90 x 60 x 12 x 350. That means that each voxel is a vector of size...

9 years ago | 3 answers | 1

3

answers

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Dividing 3D image into cubes
Dear Matlab experts I have a 3D image and I want to divide it into cubes, i.e. I want to iterate over each cube and then do s...

9 years ago | 0 answers | 0

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How to apply z-score?
Hello Should I apply z-score (to get zero mean and unit variance) on feature vectors (columns) or data points (rows)? I'm spe...

9 years ago | 1 answer | 0

1

answer

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Feature Extraction and Cross-Validation of an image dataset
Hi I have a dataset consisting of fMRI images. Each image belongs to one class. The dataset is as follows: Class 1: 9 ...

9 years ago | 0 answers | 0

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Which PC is faster?
Hi I have to do computational intensive tasks in Matlab (machine learning). I have a PC and a Notebook and I don't know which...

9 years ago | 1 answer | 0

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Hierarchical clustering with only merging neighbouring clusters
Hi I want to use a agglomerative hierarchical clustering tree (with Ward's algorithm) in Matlab, i.e. the built in function. ...

9 years ago | 3 answers | 0

3

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Answered
Errorbar: Thicker line but same error bar width
Thanks but I had to do it in this way otherwise the legend was not adapted. figure; box on hold on errorbar(x, job...

10 years ago | 0

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Errorbar: Thicker line but same error bar width
Hi I have made a plot with some errorbars, i.e. my code looks as follows: figure; box on hold on errorbar(x, jo...

10 years ago | 2 answers | 1

2

answers

Question


How to calculate the confidence interval
Hi I have a vector x with e.g. 100 data point. I can easy calculate the mean but now I want the 95% confidence interval. I ca...

10 years ago | 1 answer | 1

1

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Answered
csvread without decimal point
Thank you very much. It's my fault, I didn't see the scaling factor because I have such an enormous amount of data.

10 years ago | 0

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csvread without decimal point
Hi I have a text file which has data of the following format: 17,1413736800061,4,2 17,1413736800153,12,0 17,141373...

10 years ago | 2 answers | 0

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Number conversion and rectangle around text
Hi I'm currently using bar plots and I have two small questions hoping somebody can help. 1. I have the following in my co...

10 years ago | 1 answer | 0

1

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How to save big plot in .png
Hi I have a small problem with saving a plot. I have plotted some images with subplot method of Matlab in one plot. There are...

10 years ago | 1 answer | 0

1

answer

Question


How to make nice plots?
Hello Will plot in Matlab with the following code. a = [1.23, 2.34, 5.55, 7, 13.21, 15.66, 18, 20] x = 1:size(a); ...

10 years ago | 6 answers | 1

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Finding the knee point in an eigenvalue plot
Hi I want to automatically find the "knee" point of the eigenvalue plot. I.e. I have a vector of eigenvalues (sorted from hig...

10 years ago | 1 answer | 1

1

answer

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Drawing in the images
Hi I want to develop a procedure to remove some inpainted text from images, i.e. I have to estimate the inpainted pixels. I w...

10 years ago | 1 answer | 0

1

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How to use Robust PCA for image inpainting?
Hi all I want to use Robust PCA for image inpainting, i.e. to estimate anomalous (bad) pixels. I assume that the bad pixels ...

10 years ago | 0 answers | 0

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How to compute regions of matrix
Hi all Let's say we have the following matrix: 0 0 0 0 0 0 0 1 0 0 0 0 1 1 0 0 0 0 1 1 0 0 0 0 ...

10 years ago | 1 answer | 0

1

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Convolution from bottom right
Hi all I want to do a convolution from the bottom right and not as usual from the top left. I think conv2 of Matlab only does...

10 years ago | 1 answer | 0

1

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Question


Initializing matrix randomly and by sample
Hi I have a matrix X with size m x n and a matrix U with size m x k where k >> n. Now first I want to fill the columns of ...

10 years ago | 3 answers | 0

3

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Homogenity of an image
Hi I want to calculate the homogenity of images. This can be done directly in Matlab with homogeneity = graycoprops(gray...

10 years ago | 3 answers | 1

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