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convert matrix data to cell array data
Try this >> num2cell( magic(5), 1 ) ans = 1×5 cell array Columns 1 through 4 {5×1 double} {5×1 double} {5×1 d...

5 years 前 | 0

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how do I store an array of functions?
An error message tells me Nonscalar arrays of function handles are not allowed; use cell arrays instead. Is this what are loo...

5 years 前 | 1

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How to get drive name?
On Windows this function works with my local drives >> DriveName( 'C' ) ans = 'OSDisk' >> DriveName( 'D' ) ans = '...

5 years 前 | 1

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Getting error about index in for loop
Three problems: replace 0:size(dataN) by 1:size(dataN,2). Matlab's indexing is one-based. avg = mean(val); overwrites avg in e...

5 years 前 | 0

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Optimizing code run time
Try to replace M = load(fullfile(path,'M.mat')); by persistent M if isempty(M) M = load(fullfile(path,'M.mat')); end ...

5 years 前 | 0

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How to Keep Nested For Loop Indexes From Equaling Each Other
for ii=1:50 for jj=1:50 if not(jj==ii) code end end end See i, Imaginary unit

5 years 前 | 0

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How can i store data in a cell array with single row and few number of columns?
Pre-allocate ACC before the for-loop ACC = cell( 1, 20 ); replace all ACC{a,1} by ACC{a}

5 years 前 | 0

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New class object every iteration
In most cases it's better to create an array of objects. The documentations provides one way. See Construct Object Arrays. Wha...

5 years 前 | 0

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My home tab and command line are missing in MATLAB 2019b
Your screen shows an undocked Matlab Editor - I think. Notice the icon in the upper left corner here is a screen clip from an...

5 years 前 | 1

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How to access a row elements of a field of a structure
Assumption: "three rows and 10 columns" refers to a 3x10 double matrix Try %% A.f1 = randi( [0,9], 3, 8 ); % sample dat...

5 years 前 | 0

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How can I define a class constant based on an abstract constant?
Doesn't this meet your requirements? The property, data, doesn't need Abstract=true and it would force you to define data in al...

5 years 前 | 0

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BUG in nargin < 3
The example works as expected for me. It throws an error because no value is assigned to y >> y = myfunction( 1, 2, true ) Out...

5 years 前 | 1

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Column indexing with condition
Try this >> isn = any( A<0, 1 ); >> B(:,isn) = -B(:,isn) B = 1 -2 -3 4 -5 -6 7 -8 -9 and...

5 years 前 | 0

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How can I count the number of times a specific value appears within a range in a 1D vector?
If x is a vector of whole numbers sum( double( x(151:end)==1 ) ) else sum( double( abs(x(151:end)-1) < small_number ) )

5 years 前 | 0

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Why can't I convert from datenum to datetime?
The datetime statement is ok. >> d_times=datetime( now, 'ConvertFrom', 'datenum'); >> d_times d_times = datetime 27-A...

5 years 前 | 0

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ERROR while running value function iteration code: Index in position 2 exceeds array bounds (must not exceed 2).
Before trying to fix the problems see: Debug a MATLAB Program Then start by reading the code carefully. The first thing that ca...

5 years 前 | 0

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Inputing textfile data as meaningful variables
Matlab provides several different functions to read text files. (I'm used to textscan.) "cell array of all values in that first...

5 years 前 | 1

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How to load Excel .xlsx and .mat files into Matlab?
The function, load(), cannot read excel-files. "when I use "load FileName" I get an error" FileName is that the name of a mat-...

5 years 前 | 0

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how to call a nested function from a method
"how nested functions in Methods behave" the same way as in functions "call the "child" function from a different script" the...

5 years 前 | 0

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Function that calls functions
Caveat: I'm guessing. Replace nfin=2*(Integral_Numerical_1_potential(R(1:4),3,a,b)+Integral_Numerical_2(R(4:end),M-3,a,b))/(1...

5 years 前 | 0

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Using reshape to manipulate a large matrix
"I dont know how to scale down the matrix by any factor other than 2" What's wrong with your code? I think your code works jus...

5 years 前 | 0

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How do you continue a string on the next line in Psychtoolbox?
The strings, 'center', 'center', are they really intended to be part of the second input argument of DrawFormattedText() ? I g...

5 years 前 | 0

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Invalid default value for property error in class properties
In the properties block one must refer to a as MyClass.a when Constant. >> mc = MyClass mc = MyClass with properties: ...

5 years 前 | 0

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NetCDF File Assign Variable Loop from Array
Partial answer. Replace ? = ncread('../data/isff_20070403_20.nc',fNameu); by assign( txt, ncread('../data/isff_20070403_20.nc...

5 years 前 | 0

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How do I convert a string to date time?
I found this example in the documentation of datetime Specify the current date and time in the time zone represented by Seoul, ...

5 years 前 | 0

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How can I extract a single value from every 86 lines of a long text file?
Try this %% Read all lines as text fid = fopen( 'fort18000.txt' ); cac = textscan( fid, '%s', 'Delimiter','\n' ); [~] = fclo...

5 years 前 | 0

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how to extract a specific data from struct formatted dataset
Try this %% z = load('B0005.mat'); len = length(z.B0005.cycle); a = zeros( len, 1 ); for ii = 1:len if strcmp( z.B00...

5 years 前 | 0

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Matlab does not save the variable in each loop
you need to pre-allocate Tout, something like N = appropriate value Tout = cell(1,N); before assigning values

5 years 前 | 1

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This code is not working, it return an issue stating with vector length, please help out
The size of the variables, x2 and w, must be the same. They are not. >> whos x1 v x2 w Name Size Bytes Cla...

5 years 前 | 0

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How can I find x values given a FOR command?
Replace find (x) = 0:5:55 by x(1:round(5/dt):end,:) This should work since 5/dt is a whole number. round takes care of a po...

5 years 前 | 1

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