# Hin Kwan Wong

### University of Warwick

Active since 2011

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Java error when opening fig files
I solved this problem by running MATLAB as administrator.

9 years ago | 2

Submitted

Integer partitions
Finds all partitions of a set containing homogenous elements, also called integer partitions.

Bode diagram to Nichols curve
Since you have the mag and phase data for bode plot is open loop You can just plot a Nichols plot yourself by transforming the ...

12 years ago | 0

Binning for a histogram.
Make an array with A=[energy sum] Then use: A=sortrows(A); hist(A(:,2),A(:,1))

12 years ago | 0

finding the equation of spline in matlab
Your question is ambigious. Are you trying to fit a spline to a spline or some data you don't know its nature? You can't ea...

12 years ago | 0

Input argument "" is undefined
function ll=p_ll(theta) is p_ll with letter L not number ONE maximize(@p_11,theta,2,1,0); you put it as p_11 with number...

12 years ago | 0

It's not hard of a question if I understand what Lee means as it stands From the first part: X[n]*h[n]=[20cos(5πn+ π/3)+cos(200π...

12 years ago | 0

| accepted

having one "for" loop instead of two
Your code does not make sense because it's overwriting c each time you loop it Your answer is just equal to c = last a + last b...

12 years ago | 0

Overlapping graphs
You can either normalize all the axes so that they fit within the same scale on a common axis and plot the data in different col...

12 years ago | 0

command of alignment for general sequences
What sequence? If you mean any two numerical sequences which are correlated. Their alignment can be done by using cross correla...

12 years ago | 0

parfor - how do I "slice" a variable? Can I?
Make sure the following requirements are satisfied: * Type of First-Level Indexing — The first level of indexing is either pa...

12 years ago | 0

Can anyone tell me why my function is taking so long to run?
Please read in the MATLAB help about the use of profiler to isolate lines of code which takes most of time to run. There are als...

12 years ago | 0

Speeding up code
Parfor is not really beneficial unless you have quad cores or comput clusters. Looking at your code it will benefit a lot from v...

12 years ago | 0

evaluate diameter of moving bubbles
What's the acquisition device? From a 2D image or 3D model? If you have good image processing so that the bubble is a silhoue...

12 years ago | 0

one line takes ages, but is it possible to optimise any more?
Sorry I may have misinterpreted your question But then it seems easy to me You use use Data(circ) to extract a linear vect...

12 years ago | 0

one line takes ages, but is it possible to optimise any more?
Your code is running slow because MATLAB is not good for running serial for loops. It's good for vectorised calculations. Wh...

12 years ago | 0

Singleton dimention as last dimension in matrix
64 x 64 x 1 with all due consideration is identical to 64 x 64... You with see why with zeros(5,5,1), zeros(5,5,2) and zeros(...

12 years ago | 3

Why are the times took for consequent tocs not consistent?
I would personally use multiple tic tocs instead of tic then multiple tocks. tic tocs are meant to be used as a pair, that's the...

12 years ago | 0

| accepted

Submitted

Cummulative (dim 2) products across all permutations of distinct column-indices
Sum column element products for all permutations of distinct column indices + user restrictions