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Question


Draw an arrow on a plot
Please how can draw an arrow on each of this plot showing the direction for increasing time.

7 jours il y a | 1 réponse | 0

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réponse

Question


Plotting a single contour to divide a region into two
In the figure I attached, I have oscillatory region and non-oscillatory region. Pleas how can I plot a single contour line that ...

3 mois il y a | 1 réponse | 0

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Question


Why fft don't find oscillations ?
I'm trying to find an FTT of an oscillatory data. In the first figure, you can observed an isolated white region. In this region...

3 mois il y a | 1 réponse | 0

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Question


Find the roots of transcendental algebraic equations
Hello, I have a transcendental equation that has real and imaginary roots. I used MAPLE to solve the algebraic equation but it M...

3 mois il y a | 1 réponse | 0

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Question


Parameter estimation of SEIHRDBP model
% I am back please. I have gotten the data correct data with date. The whole idea is that I want the parameter estimation for pa...

4 mois il y a | 1 réponse | 0

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Question


Parameter estimation of SEIHRDBP model
% I want simulate "parameter estimation of SEIHRDBP Model", where % S=susceptible, E=exposed, I=infected, H=hospitalised, R=rec...

4 mois il y a | 1 réponse | 0

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Question


How to find corresponding frequencies for frequency magnitudes in FFT analysis
% I computed the fft for 10 values of xi and % 10 values of l as shown below. I am trying to determine which values % of xi an...

4 mois il y a | 1 réponse | 0

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Question


How to add a legend for multiple figures with horizontal and south location
% Please how can add one legends for the subplots. I want the legend % location to south and horizontal. I also want to break t...

4 mois il y a | 1 réponse | 0

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Question


Loading multiple structure from a folder
I am tried load multiple structures from a folder but I got a error below: filepath = '..\sol_active_case11\'; mydata = dir...

4 mois il y a | 1 réponse | 0

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réponse

Question


The logical indices contain a true value outside of the array bounds
Please, how can I tackle "The logical indices contain a true value outside of the array bounds" error? I don't what exactly is t...

4 mois il y a | 1 réponse | 0

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réponse

Question


The logical indices contain a true value outside of the array bounds
I am trying to test the following conditions: if intabsul == absintul && intabsur==absintur returns the corresponding entries...

4 mois il y a | 1 réponse | 0

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Question


How to return corresponding entries of an array using if statement
Please how can I handle this: I want to use if statement such that if intabsul == absintul && intabsur==absintur returns th...

4 mois il y a | 1 réponse | 0

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Question


x or y intercept for 2D data
I have a 2D data of the form u(y, xi, l). Ie., 31x20x20, where 31 are values of y, 20 are u values that corresponds to 20 xi val...

4 mois il y a | 1 réponse | 0

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Question


How to make contour to have the same axes
I have a two different plots with 2 different axes. The second plot (fig2) is extracted from the first plot (fig1). Please how ...

4 mois il y a | 1 réponse | 0

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Question


Why is matlab printing all number of digit.
Please why matlab displaying all the number of digits on the y axis. See the attached figure, the code below produces the fiugre...

4 mois il y a | 2 réponses | 0

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réponses

Question


How to make an axis two different plots the same using the aspect ratio and how to set the contour colors the same.
How to make an axis these two different plots the same using the aspect ratio and how to set the contour colors the same? Althou...

4 mois il y a | 1 réponse | 0

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réponse

Question


How to match colors of an extracted contour with the colors of the main figure?
I extracted the region for activity, xi = linspace(58, 115) and l=(1.24787e-06, 2.42592e-06) from the figure attached, which is ...

4 mois il y a | 1 réponse | 0

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réponse

Question


How to display contour levels for some specific levels
Is it possible to display contour levels for some specific values? Z = peaks; figure [C,h] = contour(Z,8); clabel(C,h) t...

5 mois il y a | 1 réponse | 0

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Question


PLOT SYMBOLS/MARKER FOR TWO SET OF ARRAYS IN A CONTOUR
Hi, I have two set of arrays: xi = linspace(0, 100, 10); L =linspace(0, 0.0001, 10); and a matrix: intul and I have...

5 mois il y a | 1 réponse | 0

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Question


Writing/Loading data that has runs 2 for loops
Hi, Lvals = 1:10; xivals = 1:10; % tarray = 1:20; nt = length(tarray); % lxi =length(Lvals); nxi =length(xivals); % ...

7 mois il y a | 1 réponse | 0

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Question


Finding x intercept for 2D data
Hi, Please how can i find x intercept at y=0 for 2D array. For instance, I have V which is loop over xi=0:1:10 and l=0:0.1:1....

7 mois il y a | 1 réponse | 0

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Question


sorting list of structures in a structure
I have a list of structures in a structure. I tried this: %% Load data matpath = 'C:\Users\..; mydata = dir(fullfile(matp...

7 mois il y a | 1 réponse | 0

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Question


How to find same values in an array and their index
Hi, I have array with some repeated values. I have 1e-6 repeatedly. How can I have find all the values and their correspondin...

7 mois il y a | 1 réponse | 0

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réponse

Question


How to find the position index of vector array
Hi, I have meshgrid on X1 and and Y1 but I have attached only the X1 and x1 and y1 files l=6.6667e-6, l is a line that divides...

7 mois il y a | 1 réponse | 0

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Question


common legend and common for multiple plots
Hi, Please how can include common axes and legend for multiple plots without doing it individually? % Use LaTeX fonts set(gca...

8 mois il y a | 1 réponse | 1

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Question


What is different between FFT and SHIFTFFT
Please can someone explain why this code : fftshift(fft((x - mean(x)).*hann(L), NFFT)/sum(hann(L))) is better than fftshift...

8 mois il y a | 1 réponse | 0

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réponse

Question


Finding y-intercept for loop
Hi, In the m.uvals file I 24 x 1 x 31 matrix, 24 are the index of xivals and 31 are the values of u and m.array file is the y...

8 mois il y a | 1 réponse | 0

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Question


How can I find the peak location from the FFT output?
Hi, Please, how can I find the peak location from the FFT output? I have attached my m file

8 mois il y a | 1 réponse | 0

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Question


Saving multiple files in one folder
Hi, Please how can I save multiple figurea as png into a single folder? I tried this although is "fig" but it only save the last...

8 mois il y a | 1 réponse | 0

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Question


Load multiple files one by one into a subfolder or Extract data from strut
Hi, How can I load multiple files from a subfolder without merging them into a strut. ? or I have a .mat files in a folder...

8 mois il y a | 1 réponse | 0

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