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Why i am getting error in the 2nd input line
It looks there is some function in your working directory on the name input. What does which input show up? Rename the functi...

4 years ago | 0

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I need to add color shapes to dose distribution images
Read about patch, area.

4 years ago | 0

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How to compare lat lon from text file with netcdf file?
REad about interp2. You can do the interpolation and extract your required data. data2 = interp2(X1,Y1,data1,X2,Y2) ; % wher...

4 years ago | 0

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Issue with plot when using 2 FOR loops
X = zeros([],1) ; Y = zeros([],1) ; Z = zeros([],1) ; count = 0 ; for k=1:3 for j=1:3 % the main code ...

4 years ago | 0

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Creating empty cell array with function
It seems you are straight away running the function. You need to provide the inputs to the function and then call the function. ...

4 years ago | 0

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How to Append all values in single array in MATLAB
iwant = [out1 out2 out3 out4];

4 years ago | 0

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How to solve a system of two equations of three variable?
If you have the points in hand already and you want to find the points of intersection, you can try this fileexchnage function: ...

4 years ago | 1

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Exponential Function Plotting From Reverse
clear all close all t = 0:1:150; x = log(1004*t); figure plot(t,x,'Color','r') grid minor set(gca,'XDir','reverse')

4 years ago | 0

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Plotting values by defining a function plotter
Your inputs to the function are not correct. The function: plotter( Interval,k,b ) Interval should be an array/ vector. Exam...

4 years ago | 0

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How Can I randomly select 10% of my array values and replace it with N/A or zero
Let A be your 250x1000 array. N = numel(A) ; % total number of elements idx = randsample(N,round(10/100*N)) ; % select 10% ...

4 years ago | 1

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Multiplying two vectors to form a matrix
x = rand(601,1) ; y = rand(601,1) ; iwant = sqrt(x.^2+y'.^2) ; size(iwant)

4 years ago | 1

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What is the way to create and save files?
You have to use imwrite. Read about it.

4 years ago | 0

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Find array row element in another index array
iwant = P(reshape(dx_of_pt',[],1),:) ;

4 years ago | 0

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Why points inside a polygon can't be found completely by using "Inpolygon"
load('data.mat') idx = boundary(xloc,yloc) ; % pick the boundary points which form a polygon ind=inpolygon(source_xtheta,sour...

4 years ago | 1

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There is an error where i have noted. anyone know how I could fix it?
Your A and b are going to be a 3D matrix. Check the below code. %% Model parameters m=1500; I=2500; lf=1.1; lr=1.6; l=lf+l...

4 years ago | 0

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I am not able to fix the error(s) in this command script. Can anyone help me?
clear; close all; clc; xmin = 0; xmax = 1; n = 100; dx = (xmax - xmin)/n; dt = 0.001; C = 10; L = 10; r = C*dt/dx; c = ...

4 years ago | 0

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How can I sort intersections points given from polyxpoly according to order of appearence?
I would suggest to use this. https://in.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections

4 years ago | 0

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How to plot inset in a subplot defined by axesand position?
figure('position',[100 100 800 900]) % subplot('position',[100 100 800 300]) x=linspace(1,10); y=linspace(1,10); plot(x,y) ...

4 years ago | 0

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How do I input multiple values in an array/matrix multiple times?
Save them into a cell. d = cell(cnt-1, 1); for i = 1:1:cnt-1 a = Value(IdxStart(i):IdxStart(i+1)-1); b = Time(IdxSta...

4 years ago | 0

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Why I am getting this error message?
It looks like r3 is not an integer, it has decimals. Try: r3 = round(r3) ; % round r3 to the nearest integer d3x3 = wind...

4 years ago | 0

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A(I): index out of bounds; value 6 out of bound 5. How to fix this error?
a = [2:2:10]; b = zeros(1,length(a)-1); for i = 1:length(a)-1 b(i) = a(i+1) - a(i); end Or Simply: b = diff(a)

4 years ago | 0

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Find the extremum of the surface
Read this: https://in.mathworks.com/help/matlab/ref/surf.html To get the extremum, read this: https://in.mathworks.com/help/ma...

4 years ago | 0

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Iterating through Matlab Table
LEt T be your table. With first column as dates. % First make the dates daily thedates = T.(1) ; % existing dates of the ta...

4 years ago | 0

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How can I remove the line for nan in my ploting
% remove that line idx = x>11.3 ; y3_km(idx) = NaN ; y4_km(idx) = NaN ;

4 years ago | 0

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Finding intersection point of two vectors
You can use this file exchange function. https://in.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections

4 years ago | 0

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How can I select a cell containing a specific text from a nx1 cell array and store it in a variable?
Read about contains, strcmp, strcmpi, strfind. All these functions give you index where theres is a match with the given input s...

4 years ago | 0

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Trying to count number of occurrences that exceed a threshold over a certain amount of time.
if T is your temperature array. dT = diff(T) ; nnz(dT<5)

4 years ago | 0

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How to find an eigenvector
Read about the function eig. A = magic(5) ; [V,D] = eig(A) ; vec = V val = diag(D)

4 years ago | 0

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length(find((XM(2:end)>126.5 & XM(1:end-1)<126.5)｜ (XM(2:end)<126.5 & XM(1:end-1)>126.5)));
They represent second to last and first to last but one elements respectively. % Example a = rand(5,1) ; a [a(2:end) a(1:en...

4 years ago | 0

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How do I get rid of certain values with the same X-axis value in a certain range?
Put a logical conditioning, get indices and remove those points. Simple. Example: y = rand(1,10) ; % random data for demo ...

4 years ago | 0