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Is this possible to normalize data of a matrix having dimension of 165 rows and 16 columns except the last column in a single statement? Normalization technique may be use is x/max(abs(x))
x_norm = bsxfun(@rdivide, x, [max(abs(x(:,1:end-1)),[],1) 1])

10年以上前 | 1

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compute force matrix from positions matrix
There surely is way to vectorise your code, using bsxfun, accumarray and/or arrayfun, for instance. However, this most likely t...

10年以上前 | 0

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i have a code which is written in 2006.the author's name is Xiang Bai .code dose not run. i cant find the problem. so i attached the code and the error message.can anyone help me? i really need help.
This errors arise when the classes of two variables differ. a = uint32(4) b = int8(4) a-b You can try to cast the ...

10年以上前 | 0

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Please help! Combine figures into one new figure
Take a look at copyobj figure(1) subplot(1,2,1) ; ph{1} = plot(cumsum(rand(10,20)),'bo') ; figure(2) ax = subp...

10年以上前 | 1

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Plot 10 times and take the average
users = [10 20 30 40 50]; N = numel(users) ; rates = zeros(1,N) ; % pre_allocation for i = 1 : N tempV = My...

10年以上前 | 0

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Do you have a suggestion for a name of my function?
Thanks all! Nice to see, you all agree that RUN (or boat) should be part of the function name. I'll use runindex as the function...

10年以上前 | 0

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array length is not what I've set...
In your code, the variable *j* has two roles: # an index into Hopt # a value that is used for calculation (angle?) Your b...

10年以上前 | 1

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Do you have a suggestion for a name of my function?
Thanks for the inspiration! What about *runindex*? Or is this confusing with regard to existing functions?

10年以上前 | 1

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what is the fastest way to convert a cell array of delimited numbers into a matrix
A = {'1,5012,0,35,6' ; '2,395,1,35,8'} ; A = repmat(A,250000,1) ; % big array! tic ; A2 = strcat(A,',') ; V = ssca...

10年以上前 | 4

質問

Do you have a suggestion for a name of my function?
I have written a nice little function which I would like to put on the File Exchange. However, I am still looking for a short an...

10年以上前 | 6 件の回答 | 2

6

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How do I rename fields of a structure array?
You can use DEAL and a for-loop to change fieldnames: % create a structure array, with different fields for k=1:10, ...

10年以上前 | 1

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How do I rename fields of a structure array?
There is a somewhat hidden function called *renameStructField*, that can do the job, perhaps within a loop. Or use dynamic fi...

10年以上前 | 2

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how to create random numbers according to any distribution within a range
First, carefully read the help of RAND, especially the first example in it. The next step is to define your distribution more...

10年以上前 | 0

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I want to find the non-zero numbers in each row
help find

10年以上前 | 0

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Operands to the && operators must be convertible to logical scalar values.
Perhaps this example can help you in how to use logical operators with vectors: x = randn(1,20) y = randn(1,20) t...

10年以上前 | 0

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Any simple way to change a struct with fields of length "n" to a struct of length"n"?
This question clearly shows how _not_ thinking about your data management in the beginning will get you into trouble later on. ...

10年以上前 | 2

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How to delete the colon's in a matrix?
Is the data stored as strings in a cell array? C = {'1,6:3','2,5:3','99,103:4'} C2 = strrep(C,':',',')

10年以上前 | 0

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How to generate a matrix of all permutations of numbers ignoring repeats
Does this produce your result? Note that the matrices become too large very rapidly ... My function PERMPOS can be download...

10年以上前 | 0

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I want to plot some thing like this picture how can i do this ?
Use *AXES* to create a new axis relative to the another axes x = 0:100 ; y = exp((x/50).^2)+rand(size(x)) ; % some data ...

10年以上前 | 1

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Find exact time step
Let S be your vector of speeds, and T your time points % Determine, for each time point, is the subject running or not ...

10年以上前 | 1

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problem with input names of vectors loaded in a function
Do not store your data like this. It is the contents of a variable that should change, not the name itself. In your case, you...

10年以上前 | 0

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GUI Question: Have a pop-up dialog which has license agreement? Accept/Decline pushbuttons.
Sure! You can, for instance, use *QUESTDLG* for this: function Main disp('Welcome to this function.') ; ButtonNam...

10年以上前 | 0

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How to change plotyn plot curve lines to stairs line
Can't you use *STAIRS*? An example: x = 0:.2:pi/2 ; y = sin(x) ; plot(x,y,'bo-') ; hold on ; stairs(x,y,'r.-') ...

10年以上前 | 1

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Replace elements of sparse matrix from a full matrix.
What don't you replace the elements before converting it?

10年以上前 | 0

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How can I get the Mastering Matlab Toolbox
Duane Hanselman retracted all the files from the Matlab File Exchange, but the book has its own website where you can download t...

10年以上前 | 1

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The value of each iteration is not recorded in cell
You want to loop over several elements: *for k = 1:11* rather than *for k = 11*

10年以上前 | 0

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How to generate 500 permutations of any vector length 20? I am getting error
To generate one permutation of y you can use randperm Y = [45 45 45 45 45 45 0 0 30 30 0 0 0 0 45 45 45 45 45 45]; R = r...

10年以上前 | 0

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How do I avoid using for loop when I want to treat the rows of a matrix individually?
This will work for unique rows of A: B=[1 2 1 3;1 2 1 4;1 3 1 4;1 2 1 6;1 4 1 5;1 5 1 3;1 5 1 7]; A=[1 2;1 5]; D=[1 3...

10年以上前 | 0

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How to restrict the range ?
I do not see why you need bsxfun for this. If X is your signal, this statement restricts X between -1 and 1 X = [0.5 1 2 -2...

10年以上前 | 0

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How to extract a row of 2D cell array and store it in another 1D cell array?
As for any 2D array, each row of a 2D cell array has to have the same number of elements. I assume you meant to say that *each c...

10年以上前 | 1