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Adjust width of error bars
O.k., here is an example: X = 0:pi/10:pi; Y = sin(X); E = std(Y)*ones(size(X)); B = errorbar(X,Y,E) ; pause...

13 years ago | 0

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Indexing matrix using logicals
% Given: a=[10 13 14 15 16;11 12 15 16 17; 3 5 8 9 12]; % Array T = 11.5; % Threshold. % The approach: L =...

13 years ago | 0

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Write function to expand array and average adjacent entries.
Please show what you have done so far for *your* homework problem.... The more effort you show, the more help you will likely...

13 years ago | 0

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Solve a system of symbolic variables
Use symbolic arrays instead: F = sym(zeros(num_nodes,1)); d = sym(zeros(num_nodes,1));

13 years ago | 0

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How do I combine legend entries for a spline and data points?
Here is an example: % First set up the data and the spline fit plot. x = -3:3; y = [-1 -1 -1 0 1 1 1]; t = -3:...

13 years ago | 0

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Answered
How do I make the desired Regular Expression?
This seems to work for your test case: str4 = regexprep(str,'^(\s*)(#{2})','$1'); Or, even simpler: str4 = regexpre...

13 years ago | 0

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Answered
how to plot the vectors having different length
If you know the starting time and ending time for the amplitude, you can just make your own time vector of the correct length. ...

13 years ago | 2

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Having a slight problem with Newton-Raphson loop. No errors in command window..
To elaborate on Walter's answer. You are comparing floating point numbers for absolute equality - a mistake in general. Inst...

13 years ago | 1

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Answered
Cannot find error in my sort function
There is no way you are calling the function you post without getting errors. For one thing, you reference a variable N on the ...

13 years ago | 0

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Answered
access to string data in cell array-
Try this: anscell= {'LTlHSPRY','LTsalove','ohw','sdaer','siht','LTRDUDE'} aa1 = cellfun(@(x) strcmp('LT',x(1:2)),ansc...

13 years ago | 0

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Answered
manipulation of a cell array-
Cell_array = {1,[],magic(2);'stirng',[],[]} cellfun('isempty',Cell_array)

13 years ago | 0

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Simple explanation - how to use varargout
Try this: function varargout = varargoutexample(x) % Demonstrates how to use VARAGOUT. % Pass in a vector of va...

13 years ago | 0

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How can I use a data file as input to a function?
Why oh why would you put a 'clear all' as the first line of a function?? Functions have *their own* workspace, so the only vari...

13 years ago | 0

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Answered
Row by column multiplication
I think you can avoid FOR loops, but I see no reason to do so here: A=randi(10,10,3); B=randi(10,3,10); for ii = 10:-...

13 years ago | 0

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is it o.k if 'tic' is in one function and 'toc' is in another?
Yes, tic is global. Here is an example I made to test.... Example. 1st M-file: function [] = calltic() tic; ...

13 years ago | 0

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Answered
Need help with subplot
x = 0:.01:pi; subplot(3,1,1) plot(x,sin(x)) subplot(3,1,2) plot(x,sin(x*3)) subplot(3,1,3) plot(x,sin(x*6)) ...

13 years ago | 0

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Answered
Can these operations be vectorized?
T = reshape(1:100,10,10).'

13 years ago | 0

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Answered
Possible to use anonymous function as script function input?
function output = exampleF(input) output = @(x) 3*input(x); Now from the command line: T = exampleF(@(x) sin(x)); ...

13 years ago | 0

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Answered
delete function doesnt work
Did you look at the value of d? Perhaps it is not 1... Take the semicolon off, see what prints to the command window when you t...

13 years ago | 0

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Answered
How to create a matrix to contain possible combinations of 2 sets of 1D parameters
If you mean all possible permutations, do this: x = 0:.5:2; I = npermutek(x,2) I = 0 0 ...

13 years ago | 0

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Answered
How to write string delimiter in a string
A = '''' Or: S = 'This is how you write a '' in MATLAB'

13 years ago | 0

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Answered
Vectorizing three nested loops
I2 = any((bsxfun(@minus,X,reshape(x,1,1,n)).^2 +... bsxfun(@minus,Y,reshape(y,1,1,n)).^2)<TOL,3) ;

13 years ago | 0

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Answered
Minimum value of row
A = magic(6); % Given array. [MN,I] = min(A,[],2) % Minimum of each row, and index Also, whenever you have a questi...

13 years ago | 0

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Answered
Reading numbers from alphanumeric strings in a cell matrix
X = {'N010' 'G00' 'X0' 'Y0' 'Z0' 'N020' 'G01'... 'X-10' 'Y10' 'Z-1' 'N030' 'G01' 'X20' 'Y40'... 'Z-1' 'N040' '...

13 years ago | 0

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Answered
Accessing var content in column, not location
Bad idea to name a variable 'all' as you will mask the ALL function! A =[0 84.3000 90.0000 86.7000 2.0000 ...

13 years ago | 0

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Answered
Make matlab differentiate until the conditions are met?
If you want to keep differentiating until only one of the functions has a nonzero limit, simply use: (limit(f,x,0)==0 || li...

13 years ago | 0

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Answered
How to get TRUE/FLASE to work for arrays of cells with mixed string and integer values?
NaN is not a string, but is the symbol for Not-A-Number. For example, 0/0 will produce NaN. To remove the nans, do something l...

13 years ago | 0

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Answered
Please suggest a method using Vectorization.
Many ways to do it. Here is one: x = x.*(-1).^(1:length(x)) and here is another: x(1:2:end) = -x(1:2:end)

13 years ago | 0

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Answered
How can I use the variable name in the WORK PLACE inside a function?
function myplot(x); plot(x); title (inputname(1)) end

13 years ago | 0

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how to count key presses in limited time?
I would do it just like I showed you before, but add a keyreleasefcn. So when the user pushes the correct key, a value is set. ...

13 years ago | 1

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