Answered
How do I copy fields name and their contents to another struct variable?
a(1).x = 1 a(2).x = 2 a(3).x = 3 b(1:2) = a(2:3) % Is this what you want? b(1) now equals a(2) ...
How do I copy fields name and their contents to another struct variable?
a(1).x = 1 a(2).x = 2 a(3).x = 3 b(1:2) = a(2:3) % Is this what you want? b(1) now equals a(2) ...
11 years ago | 1
Answered
how to access data from cell array within another cell array
I have trouble recreating your data: C = {{1 2 3}{10 11}} gives me a 1x2 cell array with cells as elements: % C = ...
how to access data from cell array within another cell array
I have trouble recreating your data: C = {{1 2 3}{10 11}} gives me a 1x2 cell array with cells as elements: % C = ...
11 years ago | 1
| accepted
Answered
i am facing problems using the helpdlg() command
You can put the strings into a cell array of strings, like this: helpdlg({'Line 1', 'Line 2 is followed by an empty line', ...
i am facing problems using the helpdlg() command
You can put the strings into a cell array of strings, like this: helpdlg({'Line 1', 'Line 2 is followed by an empty line', ...
11 years ago | 0
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Answered
Finding smallest value in nested structure
I think the for-loop approach is the best option. You can use that to store each value in a matrix first: Ni = numel(subj...
Finding smallest value in nested structure
I think the for-loop approach is the best option. You can use that to store each value in a matrix first: Ni = numel(subj...
11 years ago | 0
Answered
How to combine numerical values into one?
Use the power of ARRAYFUN: a = [0 1 1] b = [1 0 1] c = arrayfun(@(k) sprintf('%d%d',a(k),b(k)),1:numel(a...
How to combine numerical values into one?
Use the power of ARRAYFUN: a = [0 1 1] b = [1 0 1] c = arrayfun(@(k) sprintf('%d%d',a(k),b(k)),1:numel(a...
11 years ago | 0
Answered
graph of y = 1 / ( cos(x) -c)
I think these lines do not behave as expected: C = cos(x0) - (1./y0); % these values are never used for C= 1:7 y = 1....
graph of y = 1 / ( cos(x) -c)
I think these lines do not behave as expected: C = cos(x0) - (1./y0); % these values are never used for C= 1:7 y = 1....
11 years ago | 0
Answered
Array Building using Dynamic Field Reference using an Array of Strings
Something along these lines? Data.Field1=[1; 2; 3] Data.Field2=[4; 5; 6] C = struct2cell(Data) Output = cat(2,C...
Array Building using Dynamic Field Reference using an Array of Strings
Something along these lines? Data.Field1=[1; 2; 3] Data.Field2=[4; 5; 6] C = struct2cell(Data) Output = cat(2,C...
11 years ago | 0
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Answered
how to fix the warning message with polyfit?
Are you sure you want to fit your data with a polynomial of degree that scales with the number of elements of X? Moreover, is a...
how to fix the warning message with polyfit?
Are you sure you want to fit your data with a polynomial of degree that scales with the number of elements of X? Moreover, is a...
11 years ago | 0
Answered
Returning last value of while loop
You can return multiple outputs with functions function [q, k] = myimproperintegral(f,a,b,tol) ...
Returning last value of while loop
You can return multiple outputs with functions function [q, k] = myimproperintegral(f,a,b,tol) ...
11 years ago | 0
Answered
Changing the step in a for loop
For-loops in matlab behave a little different than for loops in C. You might be in need of a While-loop. for k=1:5 di...
Changing the step in a for loop
For-loops in matlab behave a little different than for loops in C. You might be in need of a While-loop. for k=1:5 di...
11 years ago | 0
Submitted
fourplot(X)
Four-plot for efficient visual exploratory data analysis, with box plot (V3.0, feb 2015)
11 years ago | 2 downloads |
Answered
How do I set a certain duration for a stimuli presentation?
I suggest you do not use delete and pause. Here is an alternative x = [1 2 6 8 3] ; y = [7 1 3 9 6] ; sti...
How do I set a certain duration for a stimuli presentation?
I suggest you do not use delete and pause. Here is an alternative x = [1 2 6 8 3] ; y = [7 1 3 9 6] ; sti...
11 years ago | 3
Answered
I want to break my sample like this. Problem with my logic. need help
data = 'GAATGCT' N = 4 ; for k= 1:numel(data)-N subsample = data(k:k+N) ; disp(subsample) end
I want to break my sample like this. Problem with my logic. need help
data = 'GAATGCT' N = 4 ; for k= 1:numel(data)-N subsample = data(k:k+N) ; disp(subsample) end
11 years ago | 0
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Answered
i want to make random size of my datasample.output must give random size array. As i am very new in matlab. please help.
you want a random size sample? Like this, perhaps: DATA = 'ATCG' K = randi([10 20],1) % random number between 10 and 20...
i want to make random size of my datasample.output must give random size array. As i am very new in matlab. please help.
you want a random size sample? Like this, perhaps: DATA = 'ATCG' K = randi([10 20],1) % random number between 10 and 20...
11 years ago | 0
Answered
stretching a non-monotonically increasing vector
You do want to take a look at interp1 t = [1 3 4 6 9] ; % irregular time intervals y = [0 1 1 0 1] ; t1 = 1:9 ; %...
stretching a non-monotonically increasing vector
You do want to take a look at interp1 t = [1 3 4 6 9] ; % irregular time intervals y = [0 1 1 0 1] ; t1 = 1:9 ; %...
11 years ago | 0
Answered
Split a matrix in two matrix according a criterion
% sample data G = {'wt','wt','ko','ko','wt'} V = [10 20 30 40 50] % transform G into numbers, there are other way...
Split a matrix in two matrix according a criterion
% sample data G = {'wt','wt','ko','ko','wt'} V = [10 20 30 40 50] % transform G into numbers, there are other way...
11 years ago | 0
Answered
I want to add a 20 by 20 matrix to a 50 by 50 matrix ? the resuting matrix should be of 50 by 50 .
For arbitrary sized 2D matrices A and B: % example data A = ones(3,5) B = 2*ones(4,2) % engine szA = si...
I want to add a 20 by 20 matrix to a 50 by 50 matrix ? the resuting matrix should be of 50 by 50 .
For arbitrary sized 2D matrices A and B: % example data A = ones(3,5) B = 2*ones(4,2) % engine szA = si...
11 years ago | 0
Answered
character to variable that already exists in the workspace
You should store your data into structs or in cell arrays: scoreStruct(1).values = [1 2 3] scoreStruct(2).values = 10 ...
character to variable that already exists in the workspace
You should store your data into structs or in cell arrays: scoreStruct(1).values = [1 2 3] scoreStruct(2).values = 10 ...
11 years ago | 1
Answered
Add title to current axes
set(get(gca, 'title'), 'string', 'My First Title')
Add title to current axes
set(get(gca, 'title'), 'string', 'My First Title')
11 years ago | 0
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Answered
How to arrange rows of a matrix to get a specific column in order?
Yes, there is! Take a look at SORTROWS M = [1 2 3 ; 2 3 1 ; 3 1 2] sortrows(M,2)
How to arrange rows of a matrix to get a specific column in order?
Yes, there is! Take a look at SORTROWS M = [1 2 3 ; 2 3 1 ; 3 1 2] sortrows(M,2)
11 years ago | 1
Answered
Central part of a matrix
Something like this? M = spiral(10) % test matrix S = 2 % s elements around the central position % the resulting mat...
Central part of a matrix
Something like this? M = spiral(10) % test matrix S = 2 % s elements around the central position % the resulting mat...
11 years ago | 1
Answered
How to mix order of rows in a matrix?
Very much the same procedure; M = repmat(1:10,4,1).' % example data r = randperm(size(M,1)) % permute row numbers M...
How to mix order of rows in a matrix?
Very much the same procedure; M = repmat(1:10,4,1).' % example data r = randperm(size(M,1)) % permute row numbers M...
11 years ago | 1
| accepted
Answered
Storing all values into an array
You want to do something like this: N = 10 ; A = zeros(N,1) ; % pre-allocation, will speeds things up for k=1:N, ...
Storing all values into an array
You want to do something like this: N = 10 ; A = zeros(N,1) ; % pre-allocation, will speeds things up for k=1:N, ...
11 years ago | 0
| accepted
Answered
Selecting a random number with some probability
For two values it is simple VAL = [10 20] % 2 values P = .8 % probabbility of selecting first value Ndraw ...
Selecting a random number with some probability
For two values it is simple VAL = [10 20] % 2 values P = .8 % probabbility of selecting first value Ndraw ...
11 years ago | 1
Answered
Find a value with cell array.
No need for cell2mat, simple concatenation would do: val = [A{:,1}] tf = val == 7 out = A(tf,2) which you can do a...
Find a value with cell array.
No need for cell2mat, simple concatenation would do: val = [A{:,1}] tf = val == 7 out = A(tf,2) which you can do a...
11 years ago | 1
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Answered
if else elseif and other conditions
Seems fine to me. Did you try?
if else elseif and other conditions
Seems fine to me. Did you try?
11 years ago | 1
| accepted
Answered
Plotting a circel using fill funtion
You might also be interested in learning about the function rectangle, as in: rectangle('curv',[1 1],'position',[0 0 1 1],'...
Plotting a circel using fill funtion
You might also be interested in learning about the function rectangle, as in: rectangle('curv',[1 1],'position',[0 0 1 1],'...
11 years ago | 0
Answered
How to vectorize assignment of a structure's field value
More matlab-y, but completely gibberish for the non-native matlab speaker: A = 10:10:50 C = num2cell(A) [objects(1:nu...
How to vectorize assignment of a structure's field value
More matlab-y, but completely gibberish for the non-native matlab speaker: A = 10:10:50 C = num2cell(A) [objects(1:nu...
11 years ago | 0
Answered
how to choose matrix columns randomly?
Exactly 80 vs 20? Or in approximation? And how many columns? I also assume the number of rows in A and B are the same. A sug...
how to choose matrix columns randomly?
Exactly 80 vs 20? Or in approximation? And how many columns? I also assume the number of rows in A and B are the same. A sug...
11 years ago | 0