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Pregunta
The normalization of histcounts
I would like to get the probability density function (PDF) from an array of data A (contained in the attached "a.mat" file). If...
alrededor de 2 meses hace | 2 respuestas | 0
2
respuestasPregunta
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 ...
2 meses hace | 1 respuesta | 0
1
respuestaPregunta
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...
2 meses hace | 1 respuesta | 0
1
respuestaPregunta
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 ...
2 meses hace | 2 respuestas | 0
2
respuestasBoundaries of a point cloud
Boundary extraction (identification and tracing) from point cloud data
2 meses hace | 0
Pregunta
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...
2 meses hace | 2 respuestas | 0
2
respuestasPregunta
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...
3 meses hace | 2 respuestas | 0
2
respuestasPregunta
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...
3 meses hace | 1 respuesta | 0
1
respuestaPregunta
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 ...
3 meses hace | 2 respuestas | 0
2
respuestasThe 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 ...
3 meses hace | 0
Pregunta
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...
3 meses hace | 3 respuestas | 0
3
respuestasPregunta
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...
3 meses hace | 1 respuesta | 0
1
respuestaHow 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...
3 meses hace | 0
Pregunta
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...
3 meses hace | 2 respuestas | 0
2
respuestasPregunta
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...
3 meses hace | 1 respuesta | 0
1
respuestaPregunta
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...
3 meses hace | 1 respuesta | 0
1
respuestaPregunta
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...
3 meses hace | 1 respuesta | 0
1
respuestaPregunta
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...
3 meses hace | 1 respuesta | 0
1
respuestaPregunta
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...
3 meses hace | 3 respuestas | 0
3
respuestasPregunta
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...
3 meses hace | 2 respuestas | 0
2
respuestasPregunta
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...
3 meses hace | 0 respuestas | 0
0
respuestasHow 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 = [{'...
3 meses hace | 0
Pregunta
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:...
3 meses hace | 1 respuesta | 0
1
respuestaPregunta
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')
3 meses hace | 1 respuesta | 0
1
respuestaA 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...
3 meses hace | 0
Pregunta
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...
3 meses hace | 2 respuestas | 0
2
respuestasPregunta
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', ...
4 meses hace | 2 respuestas | 0
2
respuestasPregunta
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...
4 meses hace | 1 respuesta | 0
1
respuestaPregunta
Highest-quality printed graphics with exportgraphics
Typical commands for exportgraphics are the following: exportgraphics(fig, 'output.tif') % raster fo...
4 meses hace | 1 respuesta | 0
1
respuestaPregunta
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...
4 meses hace | 1 respuesta | 1