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Philippe Lebel


Last seen: 1 jour ago
45 total contributions since 2018

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Answered
How to set the function to be able to use all variables in the script without need to be named in the function def?
i would suggest creating a struct containing the required variables. %my script params.a = 1; params.b = "very string" param...

3 jours ago | 0

Answered
How can i speed up my function?
In order to help you in a significant way, it would be useful to have a sample data set on which we could run the function. On ...

10 jours ago | 1

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Answered
Differential equation and problem with minmax
This error message tells you that you don't have the required package installed in order to use the minmax() function. Matlab c...

12 jours ago | 0

Answered
Decrease time to upload a figure
In addition to @Looky 's answer, try to remove the set(gca, 'YDir','reverse') from the while loop, I'm pretty sure you only n...

environ un mois ago | 1

Answered
How to plot curve with one color without precising which color it is?
aloa for i = 1:10 if i == 1 h = plot(1:10,1:2*i:20*i) v = get(h,'Color'); else plot(1:10,1...

environ un mois ago | 0

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Answered
Deleting plotted image from a figure if conditions are met
If you get the handle of the plot like so: h = plot(1,1,'Xr') you can just delete the handle and the data disapears delete(h)...

environ un mois ago | 0

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Answered
Does anyone know why it is also taking point 9 as convex hull point eventhough it shouldn't?
By observation, points 8, 9 and 10 are on the same line. You have to add a condition to decimate redundant points. (points that...

environ 2 mois ago | 0

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Answered
How to crop detected face part?
RGB Images are 3D matrices with dimenions = (resolution_x, resolution_y, 3) I suppose the bounding box contains the face. Try ...

environ 2 mois ago | 1

Answered
How to extract matrix from a bigger matrix based on threshold of each column?
here is my try based on what i understood. given a matrix a nx3: a = [5,6,8;1,2,3;2,3,4;3,4,5;4,5,6] a = 5 6 ...

environ 2 mois ago | 0

| accepted

Answered
Block diagonal matrix of identity times scalar.
here is my take. a=[1,2]; c = round(a(1):1/(length(b(:,1))-1):a(2)); matrix = diag(c);

environ 2 mois ago | 0

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Answered
add vertical line on a plot for Confidence intervalle.
Have you tried this function? https://www.mathworks.com/help/matlab/ref/errorbar.html

environ 2 mois ago | 0

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Answered
Is it possible to perform additional operation on job cancellation?
Checkout this function: https://www.mathworks.com/help/matlab/ref/oncleanup.html

environ 2 mois ago | 1

Answered
How can I fill my cell array?
here is my try: U{1} = [1,2]; U{2} = [2,3]; T = [1,2,3]; S = {}; for i = 1:length(T) temp_cell = {}; k=1; f...

environ 2 mois ago | 0

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Answered
How do i create a projectile?
as example for a non-accelerating projectile (which is not your case) this could look like time = 0:1:100; % time goes from 0 t...

environ 2 mois ago | 0

Answered
Creating Sine wave with random values
here is my try: random_phase_offset = rand(1,1)*2*pi; max_amplitude = 20; random_amplitude = rand(1,1)*max_amplitude; t = ...

environ 2 mois ago | 1

Answered
Saving each data from for loop
If you want to store elements (like strings) that are not the same size you can use cells. A = {'abc', 'defg', 'hijklmnop', 1...

environ 2 mois ago | 0

Answered
basic question about matrices
As i think this is an homework i'd suggest reading: https://www.mathworks.com/help/matlab/ref/ones.html https://www.mathworks....

environ 2 mois ago | 0

Answered
how can i change an indice in Matrix as vector?
Now i understand. Here is a solution that you can easily expand. clear protein(1).name = 'A'; protain(1).bool_value = [1...

environ 2 mois ago | 1

Answered
how can i change an indice in Matrix as vector?
I am not sure what you are trying to do as a whole, but if you want to quickly find where there are occurences of a certain stri...

environ 2 mois ago | 1

Answered
problem in optimization by MATLAB using genetic algorithm
Try to see if the problem is not the same as in this question: https://www.mathworks.com/matlabcentral/answers/76730-genetic-al...

environ 2 mois ago | 1

Answered
Create a string array (MxN) where each element is a repeated character based off a numeric array (MxN)
try this: B = arrayfun(@(x) repmat('#',1,x),A, 'UniformOutput', false) B = '####' [1x0 char] '#' '####...

environ 2 mois ago | 2

Answered
Delete - Variance vs standard deviation when using var() and std() with decimal values from CSV file?
Isn't this normal? As the variance is the square of the standard deviation? 0.1^2 = 0.01

environ 2 mois ago | 0

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Answered
Unknown operation performed.
This is called logical (or boolean) indexing. https://www.mathworks.com/company/newsletters/articles/matrix-indexing-in-matlab....

environ 2 mois ago | 0

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Solved


Extract leading non-zero digit
<http://en.wikipedia.org/wiki/Benford%27s_law Benford's Law> states that the distribution of leading digits is not random. This...

environ 2 mois ago

Solved


Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

environ 2 mois ago

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

environ 2 mois ago

Solved


MATLAB Basic: rounding
Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8

environ 2 mois ago

Solved


Find the maximum number of decimal places in a set of numbers
Given a vector or matrix of values, calculate the maximum number of decimal places within the input. Trailing zeros do not coun...

environ 2 mois ago

Answered
Run Linux Terminal Command on my External ROS Device
look at wonwon0 (me) answers in the following link: https://answers.ros.org/question/255008/roslaunch-on-matlab/#291922 it sho...

environ 2 mois ago | 0

Answered
Obtain the Waviness of Graph
Does this help you get what you wnat (didn t have the time to finish with the loading ond plotting of data 1) here is the c...

2 mois ago | 1

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