Beantwortet
Find minimum difference between matrices.
Another way using histc() function (may be faster for large matrices). A = rand(5,5); %first matrix B = rand(2,3); %s...

fast 11 Jahre vor | 1

Beantwortet
How to repeat rows of matrix?
One way: f = @(k) repmat(M(k,:), round(V(k)), 1); MM = cell2mat(arrayfun(f, (1:length(V))', 'UniformOutput', false));

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
Size of data points in random scatter image
This is actually a relatively straightforward process. Steps: 1. Threshold image to convert to black and white. im2bw() fu...

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
Comparing Vector Elements (of 2 vectors)
I think this should do what you want: Rc = mat2cell(R, 1, ones(size(R))); comp = cellfun(@(x) find(P<x,1,'last'), ...

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
Find consecutive values in a vector that are above a threshold
One way: s = RandStream('mcg16807','Seed',0); RandStream.setDefaultStream(s); %set seed so example is reproducible m...

fast 11 Jahre vor | 6

| akzeptiert

Beantwortet
How to divide an arc?
If I understand your question correctly, John D'Errico's interparc ( <http://www.mathworks.com/matlabcentral/fileexchange/34874-...

fast 11 Jahre vor | 1

Beantwortet
Extract Variable from Filename?
You can use strtok() or other methods, but I prefer regexp here: filename = 'sitename.yr.synth.daily.mat' %example ...

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
Matlab code for system of differential equations (chemical kinetics) fitting to data
To be clear, you want to fit experimental data to a system of differential equations with some number of unknown parameters, cor...

fast 11 Jahre vor | 3

Beantwortet
I have matrix A, how can I add a row in matrix A with others rows of matrix A ?
b = sum(a(:,1:10:91),2)

fast 11 Jahre vor | 2

| akzeptiert

Beantwortet
thermal images processing || Need help! :)
Here's an example of an approach that might work: X= imread('coins.png'); %sample indexed image BW = (X > 100); ...

fast 11 Jahre vor | 1

Beantwortet
convert Vector into matrix ?
It might not be very efficient, but I think it should work: nc = 3; %number of columns in B nc = nc-1; c = 1:(length...

fast 11 Jahre vor | 0

Beantwortet
Improve Ellipse Fit around a Binary Image
To build on Image Analyst's point, you can do something like this. outline = bwmorph( isolatedBean, 'skel'); %convert ...

fast 11 Jahre vor | 0

Beantwortet
How to resample a signal by a fraction
You could use interpolation instead. Something like this: vnew = interp1( t, v, t/(1+a), 'linear'); You could use other ...

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
Filling gaps in time series with Nan
One way that considers floating point errors: startValue = datenum(2013,5,17,0,0,0); %your starting observation endVa...

fast 11 Jahre vor | 1

Beantwortet
How do I get regexp to read specific values in a text file?
This seems to work for me: pattern = 'Platform:\s+(\d+)'; data = regexp(indata, pattern, 'tokens'); data = cell2mat...

fast 11 Jahre vor | 1

| akzeptiert

Beantwortet
how to find indices on a boundary?
You can use the inpoly() function on the file exchange ( <http://www.mathworks.com/matlabcentral/fileexchange/10391-fast-points-...

fast 11 Jahre vor | 0

Beantwortet
I need help (palindrome vector)
y = x([1:end, end-1:-1:1])

fast 11 Jahre vor | 1

Beantwortet
Extract non-zero elements from matrix with double precision numbers
notZeros= M(M~=0); Keep in mind that due to numerical precision, some of your matrix elements may be small but not identica...

fast 11 Jahre vor | 0

Beantwortet
index of a sequence
You don't really need the loops: a=[50 150 80 200 30]; b=[60 50 150 70 200]; [d,rows]= min([a;b], [], 1); %get l...

fast 11 Jahre vor | 1

| akzeptiert

Beantwortet
How to a partition a data set of days into weekdays and weekends
Hi Torrey, I think this should do it: %Matrix is your 365x48 matrix %Every 4th and 5th rows are Saturday and Sunday ...

fast 11 Jahre vor | 0

Beantwortet
Script Writes Correctly, The Graph Still Doesn't Show Up
Call hold on after your silhouette() call. 'hold on' prevents the current axes from being cleared after each plotting command. ...

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
replacing components of a matrix
%your matrix is M isBetween = (M >= 2.9) & (M <= 3.2); M(isBetween) = -1

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
how to calculate the area under a plot? when I use the area option, I'm not getting a satisfactory value. someone pls help me.
This isn't what the area() function does. The area function plots a filled shape below the line that is passed into it. The grap...

fast 11 Jahre vor | 0

Beantwortet
How do I get both the minimum of a 2D matrix and it's indices?
minMatrix = min(matrix(:)); [row,col] = find(matrix==minMatrix);

fast 11 Jahre vor | 18

Beantwortet
How to open .dat file
Use the functional form of load, i.e. load(f)

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
How can shape a matrix with predefined vectors?
N = [N1; N2; N3];

fast 11 Jahre vor | 1

| akzeptiert

Beantwortet
XTick Visibility off with XTickLabel showing
set(axes2, 'TickLength', [0 0]);

fast 11 Jahre vor | 1

| akzeptiert

Beantwortet
How to avoid for loops when generating index arrays?
It's kind of hack-y, but it gives the same output as your original posting: n=4; l = cell2mat(arrayfun(@(x) x*ones...

fast 11 Jahre vor | 0

Beantwortet
How can I plot 3D TENT with MATLAB?
For part (a), I would look up the documentation for the following two commands: linspace %to create your x and y domain ve...

fast 11 Jahre vor | 0

Beantwortet
Loading ascii data file with headers
This should do it fid = fopen('path/to/your/file.txt', 'rt'); Data = textscan(fid, '%d %f %f', 'headerLines', 3, 'Collec...

fast 11 Jahre vor | 0

| akzeptiert

Mehr laden