Community Profile giannit

Last seen: 7 dagen ago Active since 2018

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Multifractional Brownian motion generator
Generates Riemann-Liouville multifractional Brownian motion paths with a given Hurst function. Question

Fit scatter plot with a curve
I'm trying to fit the following data (here plotted using scatter) with a curve so that the result will be something like this...

ongeveer 2 maanden ago | 2 answers | 0

2

How do I find the submatrix of a matrix?
[R,P] = ismember(B,A) if R contains all ones then B is a submatrix of A and P contains the indices of A where B is located, ie ...

5 maanden ago | 0

Submitted

Circular progress bar charts Question

Fill a timetable outside the gaps
Consider the following timetable, which is just a toy to explain the problem dates = [datetime(2020,1,1) datetime(2020,1,1) dat...

8 maanden ago | 3 answers | 0

3

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

10 maanden ago

Question

How to convert current figure to matrix 1:1?
The following code firstly saves the figure to an image, then converts the same figure into a matrix which however has not the s...

meer dan een jaar ago | 1 answer | 0

1

Question

Size of saved figure differs from size of frame2im(getframe(gcf))
I need to create big images in which displaying lot of annotations, but my computer has a low screen resolution 1366x768. So I l...

meer dan een jaar ago | 1 answer | 0

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Question

How to avoid the ending drop of the movmean curve?
I'm playing around with the built-in movmean function, which creates the moving average series of given data. I noticed that in...

meer dan een jaar ago | 1 answer | 0

1

Question

Text in annotations is longer when using colors. Bug?
Using annotations in matlab I noticed that when I use colored text the spacing between words increases. See the example below I...

meer dan een jaar ago | 0 answers | 0

0

Question

Remove the edge between two stacked bars
Consider the following stacked bars data = [2 1 ; 3 2]; b = bar(data,'stacked'); axis([0 3 0 6]) the plot I'd like to obtain...

meer dan een jaar ago | 1 answer | 1

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Question

Avoid +0 when using fprintf %+d
Consider the code names={'aba','cda','efa','fea','pod'}; numbers=randi([-1 1],5,4); for i=1:5 fprintf('|%s|%+d|%+d|%+d|...

meer dan een jaar ago | 1 answer | 0

1

Question

Write unicode flag to text file
Using the html decimal codes is possible to write unicode characters to a text file, for example writecell({['down ' char(8595)...

meer dan een jaar ago | 1 answer | 0

1

Reduce loss of quality when using imfill and imfuse
By placing the following command right before the saveas one set(gcf, 'Position', get(0, 'Screensize')) the size of the output...

meer dan een jaar ago | 0

| accepted

Question

Reduce loss of quality when using imfill and imfuse
I have to fill some regions of a black and white map, whose regions are black and are delimited by white borders. This is the c...

meer dan een jaar ago | 1 answer | 0

1

Question

Fill regions of a map and keep the borders
My image is a white map of Italy with black (actually various shades of gray) borders which outline every province of the countr...

meer dan een jaar ago | 1 answer | 0

1

Reduce the line height for an annotation textbox
A workaround is simply to move the fontsize command of the last string to the middle string, that is annotation('textbox','Stri...

meer dan een jaar ago | 4

| accepted

Question

Positioning bar and image in the same figure
I'm trying to print an image above a bar plot in the same figure, manually changing their position using the set command with th...

meer dan een jaar ago | 1 answer | 0

1

Question

Properly put date labels with OuterPosition and datetick
I'm trying to change labels on x axis to be from 24/2/2020 to today (actually, at least 1 day after today, otherwise the curve w...

meer dan een jaar ago | 1 answer | 0

1

Question

Reduce the line height for an annotation textbox
The following code annotation('textbox','String',{'\fontsize{10}TEST', '\fontsize{15}7,987,157', '\fontsize{10}+8,829'},'FontNa...

meer dan een jaar ago | 1 answer | 0

1

Question

Exporting a cell array whose dots were replaced by commas, results in added quotation marks
I have strings in a cell array, I would like to replace dots with commas and then export it in a text file. The following code ...

meer dan een jaar ago | 1 answer | 0

1

Question

Export a cell array containing unicode characters in a text file
How to export the following cell array containing the unicode characters U+2191 and U+2193 str={'this ↑ up','this ↓ down'}; in...

meer dan een jaar ago | 0 answers | 0

0

Question

Variable horizontal alignment of cell array's strings in annotation
In the following example, I'm trying to center align the second string of arrcell while keeping the first and third strings alig...

bijna 2 jaar ago | 2 answers | 0

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Question

What is z1 appearing when solving this nonlinear system for x y and z?
I'm trying to solve the following nonlinear system g = 1; b = 1; a = b+1; syms x y z eqn1 = 0 == -x^2/g-2*a*x-y^2/g+2*b*y+1...

bijna 2 jaar ago | 2 answers | 0

2

Question

Is it possibile to use fsolve(fun,x0) giving input to fun?
I have to solve this system of equations: function F = root2d(x) [a,b,c,d,e,f]=feval(@(x) x{:}, {151.9,67,67.8,13790,4410,10...

bijna 3 jaar ago | 1 answer | 0

1

Question

Most efficent way of finding combinations of submatrices of a matrix
Say we have a matrix P of zeros and ones and we want to find the best(*) combination of non-overlapping submatrices of P, so tha...

meer dan 3 jaar ago | 0 answers | 0

0

Question

Most efficent way of finding submatrices of a matrix
Say we have a matrix of zeros and ones 0 1 1 1 0 0 0 1 1 1 1 0 1 1...

bijna 4 jaar ago | 1 answer | 1