# University

Last seen: 3 Tage vor Aktiv seit 2023

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Frage

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

13 Tage vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 0 Antworten | 0

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Frage

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 Monate vor | 0 Antworten | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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

4 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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...

5 Monate vor | 0 Antworten | 0

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Frage

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 ...

5 Monate vor | 0 Antworten | 0

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Frage

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...

5 Monate vor | 2 Antworten | 0

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Frage

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...

5 Monate vor | 1 Antwort | 0

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Frage

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 ...

5 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

Hi, Lvals = 1:10; xivals = 1:10; % tarray = 1:20; nt = length(tarray); % lxi =length(Lvals); nxi =length(xivals); % ...

7 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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...

8 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 1

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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Frage

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 Monate vor | 1 Antwort | 0

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