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Giuseppe Inghilterra


Politecnico di Milano

Last seen: 3 years ago |  Active since 2020

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Answered
data replace with NaN
Hi, I would do in the following way: y(x>=2.519e6 & x<=2.52e6) = NaN; In this way I overwrite the current values of y vector ...

3 years ago | 1

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Answered
EPS export issue: blank figure
Hi, I usually export matlab figures in .svg format, then I modify them in inkscape and save it to .pdf. I add it in LaTex docum...

5 years ago | 0

Answered
How to set specific variables in fmincon to be integers only?
Hi, another solution could be adding non linear equality constraints: for example remainder of division between first variable ...

5 years ago | 0

Answered
How to modify data vector
Hi, you convert to string your time vector (num2str function) and then convert it to date (datetime function), specifying input...

5 years ago | 0

Answered
How to save each term from a sum
Hi, try to run this code. I add a plot in which I show how "pi1" converges toward to pi value. clear n = input('Number of ter...

5 years ago | 0

Answered
Print figure without its title
Hi, an easy and fast solution could be save first the figure and then add title, as following code: close all; clear all; cl...

5 years ago | 0

Answered
how to plot multiple graphs
Hi, you can plot all these figure by using a for loop cycle. Example: for ii = 1:180 figure plot(x,y) end In this...

5 years ago | 0

Answered
Protect the size of a preallocated matrix
Hi, in MATLAB numeric arrays are free to change size, i.e. if you add an element outside intial defined dimension, then array w...

5 years ago | 0

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Answered
Find rows of cell array containing certain specific multiple cells?
Hi, try to run following code, variable 'r' returns you row that contains what are you looking for: [r c] = find(strcmp(ca,'g'...

5 years ago | 0

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Answered
I want to double numbers that are less than the given parameter. What do I need to change
Your function will be: function dataSamples = AdjustMinValue(numberSamples, userSamples, minValue) % numberSamples: Number of ...

5 years ago | 0

Answered
Reading all text from specific cell from .csv file.
Hi, try to run following code, you should obtain what you have asked: close all clear all clc filename = 'dtc_table.csv';...

5 years ago | 0

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Answered
How merge block works in simulink?
For merge block see reference: https://www.mathworks.com/help/simulink/slref/merge.html However, if you try to model as merge_b...

5 years ago | 1

Answered
Why is my scatter plot producing inconsistent results?
Hi, your code is correct. ev17 and sch17 have the same value (2631). Both are plotted with diamond marker, thus they are superi...

5 years ago | 1

Answered
Schröder number with formula
I show you how you could solve your problem. Try this code: prompt = 'n: '; n = input(prompt); % ask the user for a...

5 years ago | 0

Answered
write indexes in a plot
Hi, look this answer: https://www.mathworks.com/matlabcentral/answers/97277-how-can-i-apply-data-labels-to-each-point-in-a-scat...

5 years ago | 0

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Answered
Random specified numbers.
Hi, you can use randsample matlab function. (Reference: https://www.mathworks.com/help/stats/randsample.html). y = randsample...

5 years ago | 0

Answered
Random variation in a signal in Simulink
Hi, if you can use stateflow in your simulink model, following chart could be a solution: As you can see you start from stat...

5 years ago | 0

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Answered
How to make real and imaginary plot of the graph same color
Hi, a fast and easy solution could be generate a triplette of RGB values randomly at each iteration and you use it as color fo...

5 years ago | 1

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Answered
How to simulate a random castle in a chessboard?
Hi, if you try to run this code: close all clear all clc n = 8; %chessboard size CB = zeros(n,n); %init ...

5 years ago | 0

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Answered
How to plot fixed value for a number of ranges splited by a fixed step size in MATLAB?
Hi, you can obtain your plot by using 'bar' matlab function (reference: https://www.mathworks.com/help/matlab/ref/bar.html). F...

5 years ago | 0

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Answered
Exact value in excel sheet of function
Hi, you can see on command window by enter following lines: format long y(783) In this way you can see on command wi...

5 years ago | 1

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Answered
How to fix axes in dynamic plot
Hi, you can add in your code xlim and ylim functions close all x=@(t)(sin(4*t)).^2; y=@(t)cos(5*t); z=pi; figure(1) for...

5 years ago | 0

Answered
Specifying row and columns in writetable function
Hi, see https://www.mathworks.com/help/matlab/ref/writetable.html on how to use writetable function. writetable(T,'myData.xls'...

5 years ago | 1

Answered
Plot grided latitude and longitude as pixels on map
I obtain this result: by running the following code: load lati.mat load loni.mat [LONG, LAT] = meshgrid(loni,lati); Z =...

5 years ago | 3

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Answered
Am I doing this right? (a Math formula to Matlab language)
Hi, A and B terms are wrong. What you wrote is the square of sum of differences. Instead formula is the sum of square of diffe...

5 years ago | 1

Answered
my plot is not sinusoidal wave
Hi, the argument of cosine "(m*pi.*x)/el" returns you always one. This happens because your cosine argument is expressed in t...

5 years ago | 1

Answered
Import variable names and vaues from a .txt file
Hi, you can try "eval" matlab function to solve your problem For example: T = readtable(filename,'Delimiter',' '); [r,c] =...

5 years ago | 0

Answered
How do I stop patch from making my squares into rectangles?
Hi, you can add to your code the following line: axis equal In this way you obtain the following result: You can see: h...

5 years ago | 0

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Answered
creating a variable address
Hi, i recommend you to use "fullfile" matlab function. This function allows you to build addresses from parts. Thus, in your ...

5 years ago | 0

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Answered
how to write a matrix to spesific excel row?
Hi, when you use xlswrite function, if you don't specify "sheet" as input argument, you must write the range in rectangular sha...

5 years ago | 0