Answered
How to make 3d plot to model logistic regression?
a0 = -3.936212854; a1 = 0.140718658; a2 = -0.102108952; m = 100 ; n = 100 ; C = linspace(0, 320,m); P = linspace(0, 0.58,n...

14 days ago | 1

Answered
How do I plot this beam, given the coordinates, distances between the nodes, and the connections, and the lengths of each segment?
Read about delaunayTriangulation. This would be easy to use to plot the shown. https://in.mathworks.com/help/matlab/ref/delaun...

14 days ago | 0

Answered
Making all Elements in Matrix Even.
a=[53, 59, 61, 87] ; iwant = a+mod(a,2)

15 days ago | 0

Answered
Retain all initial even value elements, add all odd values with 1
Hint: Read about mod. If mod(x,2) is 1 then x is odd. mod(4,2) % even number mod(5,2) % odd number

15 days ago | 0

Answered
Find position of the maximum value and then convert the row zeros and the position of the maximum value should become 1. just like in the image attach
A = rand(4) ; [m,n] = size(A) ; B = zeros(m,n) ; [val,i] = max(A,[],2) ; idx = sub2ind(size(A),(1:m)',i) ; B(idx) = ...

15 days ago | 0

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Answered
Size of Q is undefined
You need to define the input variables and then call the function. It seems you are striaght away hitting the f5/ run button so ...

15 days ago | 0

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Answered
How to find the contigous coordinate points between two varaibles datasets and do regression
idx = knnsearch(A(:,1:2),B(:,1:2)) ; B = B(idx,:) ;

15 days ago | 0

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Answered
Simple logical conditional flag column
Simple, Let C1 , C2 be your two columns. C2(C1==1)=1 ; C2(C1==-1)=0 ;

15 days ago | 1

Answered
Problem for doing Monte Carlo Integration
Your y in the ocde is a anonymous function: function_handle with value: @(x)sin(x) You need to input some value into ...

15 days ago | 1

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Answered
How to draw multiple plots in one picture?
subplot(411) plot(rand(100,1)) subplot(412) plot(rand(100,1)) subplot(413) plot(rand(100,1)) subplot(414) plot(rand(100,1...

15 days ago | 1

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Answered
how to write equation in matlab ?
If x is your series. N = length(x) ; FI = sum(abs(diff(x)))/N ;

15 days ago | 0

Answered
generate heat map based on lat/lon and data value
Let T be your grid... x = T.lon ; y = T.lat ; z = T.err_d ; % Convert the scattered data into grid m = 100 ; % can be...

15 days ago | 1

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Answered
Reading and visualizing netcdf with vectors of differing lengths
If you want to attach the file, you can upload in some cloud spaces (google drive) and share the link here without asking the lo...

15 days ago | 0

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Answered
Unable to perform assignment because the indices on the left side are not compatible with the size of the right side.
The error is clear, you are trying to save more number of elements on the LHS then it is intialized for. Example: A = zeros(3...

15 days ago | 0

Answered
Load Files from folder based on file number
csvFiles = dir('*.csv') ; % you are in the folder where csv files are present N = length(csvFiles) ; for i = 1:N thi...

16 days ago | 0

Answered
Contour plot on a surface plot
A = load('Comsol_surf.txt'); x = A(:,1); y = A(:,2); z = A(:,3); % xg = linspace(min(x),max(x),1000) ; yg = linspace(min(...

16 days ago | 0

Answered
how to obtain random vector from the defined matrix
c=[1 2 3; 3 4 5;6 7 8;9 10 11;12 13 14;15 16 17]; [m,n] = size(c) idx = randsample(m,1) iwant = c(idx,:)

16 days ago | 1

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Answered
Indexing a sub-variable in Matlab base workspace
This line: [ymin, index] = min(y); Your input to the function min is a structure. min takes an array as input. You need to cha...

16 days ago | 1

Answered
How do I save my values of x each time the loop goes round?
%IC clear x = 1; time = 0; dt = 0.1; %for loop calculating x after 10 iterations xx = zeros(10,1) ; for n = 1:10; k1...

17 days ago | 0

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Answered
PSNR calculation for two photos
You have a inbuilt functions for that: Read here: https://in.mathworks.com/help/images/ref/psnr.html

17 days ago | 0

Answered
joining two timetables to complete the timeseries
You can fill the NaN values using fillmissing. Read about it.

17 days ago | 0

Answered
How to make colormaps like the attached colorbar?
Pick the RGB values of maximum value color you want and pick the RGB values of minimum value color you want to represent. Let ...

18 days ago | 0

Answered
Finding A String In A Specific Column of A Table (SQLite)
Read about strfind and strcmp.

18 days ago | 0

Answered
how can I create a complex matrix representing a grid of points with corners at -1 - i and 1 + i.
% Option 1 A = [-1-i;1+i] % option 2 B = [-1-1i;1+1i] %1i is preferred % option 3 R = [-1 ; 1] ; % real part I = [-1 ; ...

19 days ago | 0

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Answered
Plotting excel data in MATLAB or any program
T = readtable('Calculation.xlsx') figure hold on yyaxis left plot(T.(1),T.(2),T.(1),T.(3),T.(1),T.(4)) yyaxis right plot(T...

19 days ago | 0

Answered
Not Enough Input Arguments
It seems you are straigh away running the function using run button or without providing the inputs. You need to define the inpu...

19 days ago | 0

Answered
Importing Mf4 file
https://in.mathworks.com/help/matlab/ref/videoreader.html

20 days ago | 0

Answered
how to extrapolate a non uniform 3d data?
[X1,Y1]=meshgrid(lon(1):1:lon(end),lat(1):1:lat(end)); Check the dimensions of X1, Y1..they might be empty. You have asked the ...

20 days ago | 0

Answered
Array Indexing through a random plane or random line
You can save the Slice into a variable which be of a class matlab.graphics. From this variable you can extract what you want. ...

20 days ago | 0

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