Beantwortet
How to remove duplicate nodes from generated path and segments inbetween?
If you have R2015b or newer, there are built-in functions to do this. In particular, <http://www.mathworks.com/help/matlab/ref/g...

mehr als 10 Jahre vor | 0

Beantwortet
Modified Outerjoin function code
This requires a bit more creativity, but this is how I would do it. %% 1. Making the data (see my comment at the end) A ...

mehr als 10 Jahre vor | 0

Beantwortet
Modified version of VLOOKUP for Matlab
You can do this using <http://www.mathworks.com/help/matlab/ref/outerjoin.html OUTERJOIN> . A = table; A.ID = [1;1;2]; ...

mehr als 10 Jahre vor | 1

| akzeptiert

Beantwortet
NSP (Nurse Scheduling Problem)
This blog post may be of help: <http://blogs.mathworks.com/loren/2016/01/06/generating-an-optimal-employee-work-schedule-usin...

mehr als 10 Jahre vor | 2

Beantwortet
how can I find the minimum distance from convex boundary
I like Matt J's SVM-based idea. It is actually very straightforward to solve this as a maximum separation problem. Reference:...

fast 13 Jahre vor | 3

Gelöst


Increment a number, given its digits
Take as input an array of digits (e.g. x = [1 2 3]) and output an array of digits that is that number "incremented" properly, (i...

fast 13 Jahre vor

Gelöst


Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

fast 13 Jahre vor

Beantwortet
Is there a way to speed up matrix calculations by Parallel Computing Toolbox?
As others have pointed out, this will be difficult to parallelize for a single run, since you are integrating forward in time, a...

fast 13 Jahre vor | 0

| akzeptiert

Beantwortet
Find all largest empty circles in a list of points
You don't have to try all combinations. You just need to calculate the Delaunay triangulation. Assuming that no 4 points lie on ...

fast 13 Jahre vor | 2

Beantwortet
Matlab executable requires 8.1 of MCR
You could also download it yourself here: <http://www.mathworks.com/products/compiler/mcr/index.html> Version 8.1 correspo...

fast 13 Jahre vor | 3

| akzeptiert

Beantwortet
Remove the spurious edge of skeleton
I think there must be a more efficient way to do it, but this at least works. BWDISTGEODESIC starts at a given point, and then c...

fast 13 Jahre vor | 11

| akzeptiert

Beantwortet
How to connect points horizontally and vertically in non-rect grid?
Idea 1. Use SURF [x,y] = ndgrid(0:0.1:2); %Just making random data x = sin(x).*y; y = x+y.^2; figure, surf(x,y,z...

fast 13 Jahre vor | 0

| akzeptiert

Beantwortet
Efficiently multiplying diagonal and general matrices
The best solution is going to depend on what your m and n actually are (if you know representative values of them, you should in...

fast 13 Jahre vor | 1

| akzeptiert

Beantwortet
Efficiently multiplying diagonal and general matrices
M = randn(10000,10); D = diag(randn(10000,1).^2); tic A = M'*D*M; toc tic B = bsxfun(@times,M,sqrt(dia...

fast 13 Jahre vor | 0

Beantwortet
diagonal pixel differences of image matrix
b = [2 1 8 24;9 10 3 12;2 5 8 19;1 2 3 4]; conv2(b,[-1 0; 0 1],'valid')

fast 13 Jahre vor | 1

Beantwortet
ODE with diff? DE in x(t), w/ forcing y(t), where y'(t) also appears.
It might seem counterintuitive, but even though y'(t) appears in the ODE, you don't actually need to calculate it. No DIFF, no G...

fast 13 Jahre vor | 1

Beantwortet
The advantages of MATLAB over other programing languges for Image Processing
I'm sure I've left a bunch of stuff off this list, but this is what I got off the top of my head. * A very large (and growing...

etwa 13 Jahre vor | 2

Beantwortet
minimum row value and return the row
Do you mean to say, you want the row with the minimum maximum value? A=[12 64 76; 34 10 27; 9 8 20; 10 30 8]; [value,ind...

etwa 13 Jahre vor | 2

| akzeptiert

Beantwortet
Generate Y from the conditional f(y|x)
If your goal is to generate points with that 3-dimensional PDF, then I think it could be done a bit simpler without having to do...

etwa 13 Jahre vor | 1

| akzeptiert

Beantwortet
Why isn't the autocorrelation of rand a delta function?
As described in detail here, <http://en.wikipedia.org/wiki/Autocorrelation>, there is more than one convention when calculating ...

etwa 13 Jahre vor | 1

| akzeptiert

Beantwortet
Splitting an axis into a linear and log scale
I don't think there's an easy way to do it, but you might be able to piece together two axes to make it look like its half linea...

etwa 13 Jahre vor | 4

| akzeptiert

Beantwortet
Finding vertices of (large) linear program feasible region
For the k-th direction, the set of possible edge points is b./A(:,k) along with +/-Inf. So test each one in order to see if it i...

mehr als 13 Jahre vor | 0

| akzeptiert

Beantwortet
Integral with scalar input
For an integrand that can't accept vector inputs, but only take scalar values one by one, you actually need to set ArrayValued t...

mehr als 13 Jahre vor | 1

| akzeptiert

Beantwortet
In MATLAB (cumulative distribution function), how can I find the corresponding data point (Y) for any chosen cumulative probability?
Alternatively, you can use ICDF directly on the probability distribution object icdf(pd,[0.2 0.466])

mehr als 13 Jahre vor | 0

| akzeptiert

Beantwortet
Nesting parentheses issue: any workaround?
I am in agreement with Jan. I cannot recall a single instance where I needed to use 32 parenthesis for anything. If you really n...

mehr als 13 Jahre vor | 0

Beantwortet
Fit a piece-wise linear function to data: fitting 2 lines to data and finding their corresponding parameters
You data doesn't really look like it has a constant trend at the beginning. In any case, you should still be able to solve it wi...

mehr als 13 Jahre vor | 0

| akzeptiert

Beantwortet
Find row in matrix, fast and with special conditions
Not sure if this is faster, but might be worth a try. d1 = 12650; d2 = 4; S = randn(d1,d2); s = S(randi(d1),:); ...

mehr als 13 Jahre vor | 0

Beantwortet
multiplication table in matlab
N = 10 (1:N)'*(1:N)

mehr als 13 Jahre vor | 4

Beantwortet
How to calculate the cumulative value by consequetive hours
data = [1 2 3 4 5 6 7 8]; for n = 2:5 conv(data,ones(1,n),'valid') end This gives me: ans = 3 ...

mehr als 13 Jahre vor | 1

Beantwortet
Perfect random numbers - How can I refine an initial dataset from randn to be perfrectly normal?
If you want to generate a set of numbers that "looks random", has 0 mean, 1 variance, 0 skewness, 3 kurtosis, you can start with...

mehr als 13 Jahre vor | 2

Mehr laden