Question


Histogram normalisation: a question about terminology
Let's consider the histogram and histcounts functions, as in these two cases: num_bins = 30; % <-- note: I specify the "number ...

9 mois il y a | 1 réponse | 0

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Question


A faster union of polyshapes
Do you know a faster way to achieve this union of polyshape objects? load('borders2.mat') n = length(a); warning('off','MATLA...

9 mois il y a | 1 réponse | 0

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Question


Can I use the Matlab function called "dice" to compare two histograms (or discrete probability distributions)?
Can I use the Matlab function called "dice" (i.e. the "Sørensen-Dice similarity coefficient for image segmentation") to compare ...

9 mois il y a | 2 réponses | 0

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Boundaries of a point cloud
Boundary extraction (identification and tracing) from point cloud data

9 mois il y a | 0

Question


How to select, or filter, the external border/boundary in a set of (x,y)-points? [Part 2]
Hi, in a previous question, I asked about a method to obtain the external border from a set of points. I then tried to apply t...

9 mois il y a | 2 réponses | 0

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Question


How to select, or filter, the external border/boundary in a set of (x,y)-points?
Given two or more set of points (please see attached, as example, two sets of points called "b1" and "b2", that are stored in "b...

9 mois il y a | 2 réponses | 0

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Question


Show only a part of the yaxis
How can I show only a part of the yaxis (i.e. from zero to infinity), as shown in the right figure, here below? My desired o...

9 mois il y a | 1 réponse | 0

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Question


Implement the "total variation distance" (TVD) in Matlab
I am trying to implement the Total variation distance of probability measures (TVD) in Matlab. Would it be correct to use the ...

9 mois il y a | 2 réponses | 0

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The best approach to avoid the Kullback–Leibler divergence equal to infinite
So far, I found this theoretical argument, which partially solve my issue, but still, the infinite values remain when % if P_i ...

9 mois il y a | 0

Question


The best approach to avoid the Kullback–Leibler divergence equal to infinite
Given two discrete probability distributions P and Q, containing zero values in some bins, what is the best approach to avoid th...

9 mois il y a | 3 réponses | 0

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Question


Similarity of histograms: interpretation of cosine and jaccard similarities with "pdist2"
I would like to assess the similarity between two "bin counts" (that I previously derived through the "histcounts" function), by...

9 mois il y a | 1 réponse | 0

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How to use chi2gof within CUPID
I might have found a solution that makes sense to me and gives me what I would expect, even though I am not 100% sure it is corr...

9 mois il y a | 0

Question


How to use chi2gof within CUPID
[The same question on the CUPID GitHub] Two examples of usage of the Matlab's "Chi-square goodness-of-fit test" (chi2gof) funct...

9 mois il y a | 2 réponses | 0

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Question


In the chi-square test, how to calculate (the correct number of parameters and consequently) the correct number of degrees of freedom, without using the chi2gof function?
Question In the chi-square test, how to calculate (the correct number of parameters and consequently) the correct number of deg...

9 mois il y a | 1 réponse | 0

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Question


Usage of chi2gof: how to derive the "expected" values from the fitting distribution to then use them as argument of chi2gof?
How to derive the "expected" values from the fitting distribution to then use them as argument of chi2gof? observed_data = expr...

9 mois il y a | 1 réponse | 0

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Question


Usage of chi2gof
(A very silly question) From the chi2gof documentation I see that chi2gof takes 1 argument h = chi2gof(x) Since the chi-square...

9 mois il y a | 1 réponse | 0

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Question


Goodness-of-Fit for a best-fitting distribution? (by using CUPID)
By using CUPID, how to assess the Goodness-of-Fit for this best-fitting distribution? addpath('.../Cupid-master') pd = makedis...

9 mois il y a | 1 réponse | 0

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Question


Fit a statistical distribution to truncated data
I have a "truncated dataset" and I would need to infer the distribution that most likely fits the data. Even though I have a "tr...

9 mois il y a | 3 réponses | 0

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Question


Does fitdist work for fitting a distribution to truncated data?
Does fitdist work for fitting a distribution to truncated data? Indeed, it looks like that the mean of the the fitting distrib...

9 mois il y a | 2 réponses | 0

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Question


Evaluate the "goodness of fit" of a distribution fitting, when using the function "fitdist"
When I use the function fitdist to find the best distribution fitting, I would like to measure or assess the goodness of fitting...

10 mois il y a | 1 réponse | 0

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How to find (i) unique datetimes and (ii) count their occurences?
I might have found a solution/workaround, but if there are more compact, correct and robust methods I will accept them! a = [{'...

10 mois il y a | 0

Question


How to find (i) unique datetimes and (ii) count their occurences?
How to find (i) unique datetimes and (ii) count their occurences? % Input a = [{'22-Jun-2023 09:00:00'} {'23-Jun-2023 19:...

10 mois il y a | 1 réponse | 0

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Question


How to change datetime format?
Given this: datetime('02-Jul-2023','InputFormat','dd-MMM-yyyy') How can I get this format ? datetime('02-Jul-2023 22:00:00')

10 mois il y a | 1 réponse | 0

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A compact way to assign values of a matrix to another matrix
Sorry, stupid question... I had a logical matrix "y" and I got what I wanted, just by assigning a numerical array instead of a l...

10 mois il y a | 0

Question


A compact way to assign values of a matrix to another matrix
How to assign the values of matrix "x" to the matrix "y" in a, possibly, single line of code? % Input x = [3 2 2; 4 5 3; 6 5 4...

10 mois il y a | 2 réponses | 0

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Question


xticks and yticks with decimal exponents
How to reproduce exactly these axes? % My attemot plot(10^(0):10^(3),10^(-8):10^(3)) set(gca, 'XScale', 'log', 'YScale', ...

10 mois il y a | 2 réponses | 0

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Question


Transparent patches in the main figure, but no transparent patches in the legend
In the following example, how can I have transparent patches in the main figure and No transparent patches in the legend? N = 1...

10 mois il y a | 1 réponse | 0

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Question


Highest-quality printed graphics with exportgraphics
Typical commands for exportgraphics are the following: exportgraphics(fig, 'output.tif') % raster fo...

10 mois il y a | 1 réponse | 0

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Question


Extract "labelhandles" from Legend
Given the definition of Legend in Matlab: [leg,labelhandles,outH,outM] = legend(varargin) Would it be possible to get the cont...

10 mois il y a | 1 réponse | 1

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If we have 2 Legend's outputs, the "Number of Columns" option does not work
I might have found a solution, but the "FaceAlpha" option acts on both the figure patches and the legend symbols: N = 100; x =...

10 mois il y a | 0

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