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Need to match Data
B(A(:,1),2) = A(:,2)

13年以上前 | 1

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switch case construction help
You are *recursively calling the function from inside the function* with no way to terminate the recursion. Additionally, you h...

13年以上前 | 1

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I'm having problems running input functions in matlab, does anyone know why?
There is nothing wrong with your use of INPUT, so something else is going on. Tell us the name of the script, and show how you ...

13年以上前 | 0

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Can anyone show me how I can avoid following for loops
Here is a one approach: M = diag(repmat([1 4],1,1000)) +... diag([repmat([2 0],1,999) 2],1) +... diag(...

13年以上前 | 0

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How do I find the zeros of my function?
Here is a simpler approach: x = (-2:0.01:2); y = @(x) 2*x.^4-3*x.^2+x-7; plot(x,y(x)); hold on; cnt = 1; f...

13年以上前 | 1

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How can I can I trigger the callback of an edit text control when setting its value from within the callback of a slider control?
Editbox callbacks execute when you hit return with the cursor in the text field. You can also just set the string from the slid...

13年以上前 | 0

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how can I generate a random matrix?
You will of course have to make sure that x==m*n, as you describe it. f = @(x,m,n) reshape(randperm(x),m,n); f(20,5,4)...

13年以上前 | 1

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Is there anything wrong to my code?
I don't think you have told the whole story: >> N = '9A'; >> b1='9'; >> (((N(end)=='A' || ... N(end)=='B' |...

13年以上前 | 0

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Finding rows in a matrix
Another: % The given matrix A = [1 2; 2 1; 1 2; 2 2; 1 1; 2 2]; % Now find the counts. [I,J,K] = unique(sort(A,2...

13年以上前 | 0

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changing part of the name of a variable inside a "for" loop
Do not program this way! The use of eval is *slow*, *hard to read*, *difficult to process*, works without taking advantage of *...

13年以上前 | 4

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Removing specific characters in a string?
str = 'The quick brown fox jumped over the lazy dog'; strn = regexprep(str,'[tixy]','')

13年以上前 | 4

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How can I add a char in a matrix?
A = sprintf('%i',1:5); % Make a character array. A(6) = 'B' If you must have spaces, then you must be more careful abou...

13年以上前 | 0

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how can I stick together the data in a matrix?
A = 1:5 B = str2double(sprintf('%i',A))

13年以上前 | 0

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question about multi variable data fitting
Give this a try: g=fittype('a*exp(-(x-b).^2/c.^2-(y-d).^2./f^2)','inde',{'x' 'y'},'dep','z'); or, use a function handle:...

13年以上前 | 0

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removing parentheses around digits using regular expressions
regexprep(str,'($)([\d*\.]+)($)','$2')

13年以上前 | 1

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How do we sort one column of an alpha-numeric table and make the other columns to adjust accordingly?
When I import as you explain, I get this: A = [10x1 double] [10x1 double] {10x1 cell} So if your A doe...

13年以上前 | 2

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what is subplot and how to use it?
figure subplot(1,2,1) plot(1:10) subplot(1,2,2) plot((1:10).^2) help subplot

13年以上前 | 1

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Problem in using 'break' and 'while'
This will prove to you that the break statement *does* work: x= rand(); a=0; s=0; while 1 % Infinite loop...

13年以上前 | 1

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How to concatenate data points
I am a little uncertain that this is what you want. But just to get started is this solving the actual problem? A = ...

13年以上前 | 0

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using fzero to find root of nonlinear equation
To highlight what Matt J said in a comment, you have a problem with your function definition: F = @(x) x.^q2*(r+p-r.*q1...

13年以上前 | 0

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MOD bug? Or something else?
Floating point arithmetic.... Look closely at the numbers. x = [-2:.2:2]; fprintf('%16.16f\n',x) You can read more ab...

13年以上前 | 0

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Accessing certain Dimension of Multidimensional Array
Here is how I would do it: % A is given, up to 8 dims here. A = rand(max(2,randi(4,1,max(3,randi(8))))); idx1 =...

13年以上前 | 4

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Error message: "undefined function for input arguments of type 'logical' "
It indicates that there is no function by the name that you called for inputs of the logical type. So either you called a funct...

13年以上前 | 0

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How to identify a window created by system command
What do you mean, "move it into my GUI window"? You cannot have a figure be a child of another figure, if that is what you are ...

13年以上前 | 0

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terminating a script with a quit comand
Since the SWITCH is in the loop, why not just set choose to 10 if the user wants to quit? Then the loop condition will fail and...

13年以上前 | 0

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How to use Floor command
You have fallen into thinking that you are using infinite precision arithmetic when you are only using double precision. This i...

13年以上前 | 0

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Avoid for loops with if inside
Just taking this outside all loops will *GREATLY* speed it up. g = fit(x',y','splineinterp'); Beyond that, you could...

13年以上前 | 0

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Coeffs of non linear product terms
I think a FOR loop would be fast enough here, but.... syms x y [c, v] = coeffs(x+y+2*x*y,[x,y]); C = arrayfun(@ch...

13年以上前 | 0

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Problem with ASCII characters in MATLAB
From the doc: "char(X) converts array X of nonnegative integer codes into a character array. Codes *from 0 to 127* correspo...

13年以上前 | 1

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How to Insert desired rows from one matrix into a new one
v = [2 0 0;1 0 1;4 5 6;-1 1 2; 2 3 4] % Sample array. P = v(sum(v,2)==2,:)

13年以上前 | 0