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

4 years 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 ; ...

4 years 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...

4 years 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...

4 years ago | 0

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

4 years 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 ...

4 years 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. ...

4 years ago | 0

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Answered
what changes are required in the code?
A table would be good to deal with. name = {'mary','john','anna','paul','elaina'}' ; gender = {'f', 'm', 'f', 'm', '...

4 years ago | 1

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Answered
how to randomly assign values from a vector and store it in another vector?
Read about randperm. load('detected.mat') idx = randperm(length(detected)) ; alocados = detected(idx) ;

4 years ago | 0

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what is the "count" mean?
[v1,count]=fscanf(fid,'%f',[2,numpt]); % reading data from the file into 2 rows and numpt coulmns; count gives you total nu...

4 years ago | 1

Answered
what wrong I am doing in the code?
% Make required structure S = struct ; S.name = {'mary','john','anna','paul','elaina'} ; S.gender = {'f', 'm', 'f', ...

4 years ago | 1

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how do I know which toolboxes are installed?
https://in.mathworks.com/matlabcentral/answers/93913-how-can-i-determine-what-add-ons-i-have-installed https://in.mathworks.co...

4 years ago | 0

Answered
How to compute the area and the distance?
Area can be computed using area or by writitng your own formula. Distance can be calculated using the formula. Tp get distan...

4 years ago | 0

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Answered
Error in saving Edge file?
You have used two hypens before ascii, make it to single hypen and also there is a change in the sprintf command. save(sprintf...

4 years ago | 0

Answered
Reading excell sheet, Index exceeds the number of array elements (333)
Don't use xlsread. Use readtable. T = readtable(myfile) ;

4 years ago | 0

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Answered
Play music from user input
song = input('Enter link to you favorite song : ','s'); % <---- changed here fullname = 'song'; %change as required t...

4 years ago | 0

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I can't output my data into excel in rows even though it is a 17x1 array
USe write2table. Read about it.

4 years ago | 0

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Multiply each element of matrix with corresponding element of another matrix by not using loop. Is there any other more efficient way?
Mer_EXP_rev = Prod_Year.*fundamental_price_level; Read about element by element operations. https://in.mathworks.com/help/mat...

4 years ago | 0

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Answered
Storing individual elements of vector in cell.
x=[2 45 13] num2cell(x)

4 years ago | 0

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Answered
code for this pattern
https://in.mathworks.com/matlabcentral/answers/184273-how-to-write-a-program-to-draw-a-triangle-of-stars-in-matlab

4 years ago | 0

Answered
Select lines on a surf plot and output indices
Just use surf(20*log10(abs(s)),'EdgeColor', 'k') Use getpts or ginput or daatip, this will give you location/ index where yo...

4 years ago | 0

Answered
Takin the mean of data in tables
X1=[9 6 9;3 2 7]; X2=[0 2;4 0]; X3=[3 1 2; 8 9 7]; X=table(X1,X2,X3) ; [m,n] = size(X) ; iwant = zeros(2,n) ; for i = 1:n...

4 years ago | 1

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Answered
how to resample a data from 37 layers to 34 layers?
Read about interpn. A = rand(1076,915,34) ; [m,n,p] = size(A) ; [X,Y,Z] = ndgrid(1:m,1:n,1:p) ; [Xi,Yi,Zi] = ndgrid(1:...

4 years ago | 0

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Answered
I have a square matrix of ones and zeroes and I am trying to change all the ones to a user entered number. I am only successfully changing the first value in the matrix.
A = rand(3) ; A(A<0.5) = 0 ; A(A>=0.5) = 1 ; idx = find(A==1) ; for i = 1:length(idx) [r,c] = ind2sub(size(A),idx(...

4 years ago | 1

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Answered
How do I declare a blank column vector of unknown size?
O = zeros(n,1) ; % Initiate a zeros column vector N = NaN(n,1) ; % initiate a NaN column vector iwant = zeros([],1) ; ...

4 years ago | 0

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Answered
How to fit the data with passing specific point and specific function
x=[0 0.166666667 0.333333333 0.5 0.666666667 0.833333333 1]' ; y=[0 1.09162 1.71904 2.52173 1.20849 2.47433 0]' ; n = 3; %...

4 years ago | 1

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Answered
question about result in matlab
Becuase n is a class of sym. Use double. double(n) Also note that you need not use syms to achieve this. Frame your matrices a...

4 years ago | 0

Answered
how to find value in the matrix using index?
Read about MATLAB matrix indexing. If A is a matrix, you can extract (i,j) element using A(i,j). Also have a look on ind2sub an...

4 years ago | 0

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Answered
Unable to compute a taylor expansion
syms x f = log(x); T1 = taylor(f,x,'ExpansionPoint',1,'order',1); T2 = taylor(f,x,'ExpansionPoint',1,'order',2); T4 = taylor...

4 years ago | 2

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Answered
how do I build the a beam deflection graph ?
q0 = 1 ; E = 140 ; L = 1000 ; v = -0.7 ; beamDeflection(v,q0,L,E) ; function beamDeflection(v,q0,L,E) %for x=0:10...

4 years ago | 0