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Creating animation of signals from vectors of different points.
you can use drawnow and pause(0.1) in a loop. For example: x = 1:20; y = 1:20; [X, Y] = meshgrid(x,y); for j = ...

11 years 前 | 0

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constrained maximization, share variables of tagret function and constraint
Yes. You can. You can use nested functions to utilize g(x) without calculating twice. Nested functions share the variable. Se...

11 years 前 | 0

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How to stretch a 1-D signal over the axes
If you mean just making the limits same for both plots, you can just multiply the whole x-axis of your output signal with someth...

11 years 前 | 0

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Three element vector function?
function r = myfunc(x) r = x(:,1).^2 + x(:,2).^2 - x(:,3).^2 ;

11 years 前 | 0

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How can I plot a simple circle not centered at the origin? example: (x-5)^2+(y-10)^2=4
You make a function for plotting the circle, something like this: * EDIT:* function plotcircle(x1,y1,r,c) % x1,y...

11 years 前 | 1

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How can I nest two loops of different dimension without using a for loop?
phi = 0.1; % Undefined n = 1:365; delta = sind(360*n); h = 11:-1:-12; a= cos(bsxfun(@times,cosd(delta),sind(15*h)'...

11 years 前 | 0

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cut character from string
ss1 = ss(1:2); ss2 = ss(3:4); In matlab strings are vectors of type char. So you can use indexing.

11 years 前 | 1

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提问

Is the start up time in compiled applications using 2013b better?
I had been been using Matlab 2012b. I had few deployed application using this version which took significant time to load up. ...

11 years 前 | 1 个回答 | 2

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个回答

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Defining a variable based on input
If that is what you want, try eval doc eval However, you can skip making each variable with a new name and try cell or s...

11 years 前 | 0

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Passing variables in a GUI
This is because fun1 and fun2 do not know the existence of handles inside that function. You can try something like this: ...

11 years 前 | 0

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grouping measures by time
Your cell column 1 and 2 represent date and time. you can use datenum to determine time difference. for example (assuming you c...

11 years 前 | 0

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How do I find values at geographic coordinates in a matrix?
I think interpolation will be the route. You can use interp2. For the example here, R_int = interp2(X,Y,R,Ax,Ay);

11 years 前 | 0

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showing error like Attempt to reference field of non-structure array?/
d=0:10:40; r=0.5; q1=2.65; E0=8.85*10^-12; E1=60; b1 =(d./r).^(2/3); E2=E1./b1; E3= E2.*(d+r).^2/(...

11 years 前 | 0

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Define a variable via inputdlg?
row = inputdlg('Insert row number.'); row = str2num(row{:});

11 years 前 | 0

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index exceeds matix error
(mesh.nodes(:,1:3)-repmat(coord(i,1:3),size(mesh.nodes(:,1:3),1),1)).^2; The code should work unless coord or mesh.nodes ha...

11 years 前 | 0

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set of ranges in vector.
minV = [2,20,70,90,120]; maxV = [5,25,80,100,130]; n = length(minV); %I dont want to store each value seperately. ...

11 years 前 | 0

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How to store "for loop" values?
h=11:-1:-12 for i = 1:length(h) beta=asind(cosd(Lat)*cosd(delta)*cosd(15*h(i))+sind(Lat)*sind(delta)) phi_s=asin...

11 years 前 | 1

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how to sort rows
sort(M)

11 years 前 | 0

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How to arrange plotted points in to a table?
If starting_w is vector, you can save the x,y values as myval = [starting_w opt_f(disc_w(starting_w),2,1)]

11 years 前 | 0

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Insert interval labels on plot
If you mean indicate intervals as legend then add this after the loop legend('w1','w2','w3','w4','w5','w6','w7');

11 years 前 | 0

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I need to set up a while loop to compute the projectile’s range for gradually increasing velocities, starting at zero and increasing by 0.1m/s each time. But i have only studied FOR loops and i dont know how to do WHILE loops can someone help ?
just like for loop, you can use while true you code end

11 years 前 | 0

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Looping With Transition Matrices
I don't know the process you're doing on D to make it equal to A. However with floating points, there can be carry over like 1.0...

11 years 前 | 0

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The Flop (Floating Point Operations per Second) Rate of MATLAB Code
I don't think the way you're trying to calculate flops here is right. Even if one assumes that you can calculate Flops like this...

11 years 前 | 0

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How to access randomly selected index in nested structures
Try something like this: for i=1:n X = fieldnames(structName); n = length(X); fileName=structName(i).(X{rand...

11 years 前 | 0

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How can we write the for loop for accessing a table data?
If Walter's interpretation is correct, then you do not need so many loops. A single loop approach will be: A = [5 15 25]; ...

11 years 前 | 0

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To find the minimum of a function which are constrained problems
Good that you tried it now. Lets see the problem again: You want to find minimum value for the expression, where P belongs to...

11 years 前 | 0

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Is there the more elegant way to do this?
function testarg() a=1;b=2;c=3; abc(a,b,c) function abc(a,b,c) a b c This wil ldo just fine.

11 years 前 | 1

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save matrix....load matrix
You can save the variable as a mat file using something like this: save('saveA.mat','A'); To do the second step, you can...

11 years 前 | 6

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Press a key to stop the program?
I think you can use this function from fileexchange: http://www.mathworks.com/matlabcentral/fileexchange/8297-getkeywait

11 years 前 | 0

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Using a cell array and a for loop
You can use you code with a little modification: First of all, you're showing first cell and then 5 cell from the beginning. Th...

11 years 前 | 0

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