Matlab

Moving window calculation
I would like advice on how to speed up a 'moving window' type of calculation. I have a function that calculates the final capacity of a battery as a function of an input time series of the energy going into and out of the battery, as well as the initial battery capacity: FinalBatteryCapacity = find_battery_capac... 5 May 2010 14:53

Determine if a simulink block exists
Hello, I would like to be able to determine if a given simulink block exists, I have been trying to use find_system(block_name) however this returns an error if the block does not exists as opposed to an empty array. I guess I could use try catch on this but I would like to avoid that if possible. is there an easier... 5 May 2010 10:25

newff neural network
Hi I have a training data (P) of size 19 X 1516 (1516 samples and 19 features) and target class information (T) for the training data 1 X 1516. All the samples in the training dataset were given a target of either 0 or 1. I have applied newff backpropogation neural network algorithm on the training data as follows ... 4 May 2010 14:33

how to delay any matlab command from executing
I was wondering if there's anyone out there who can help me with this problem. I have a simple script that I use to clean my workspace as follows: clc d=input('close figures? (y/n) ','s'); if d=='y' close all elseif d=='n' display('no figures deleted'); else error('enter proper flag'); end clear... 4 May 2010 16:48

integration
how to integrate a function sin(x/a) from 0 to a ? ... 4 May 2010 16:48

representing surface normals in matlab
hello, I have a matrix 3xn matrix that represents the surface normals. The first row is the x component the 2nd being the y component while the 3rd row is eh z component of the normal. I want to know how to represent it in order to get the effective normal or to represent it? Bye ... 4 May 2010 13:27

haar wavelet transform detect blur , blur estimation
I'm trying to undersant how to compute values for the degree of blury of images. I found two documents here: http://lmgtfy.com/?q=detection+for+digital+images+using+wavelet+transform First pdf Then I found a document that explains the use of gaussians for first and second derivative. http://homepages.inf... 4 May 2010 22:23

Quant Developer Needed; Top Hedge Fund; London
Our client, a major London Hedge Fund, is looking to hire an experienced Quantitative Developer to join their team in London. We are looking for a strong professional with preferably 3-6 years Matlab programming experience within a user focused background. Knowledge should cover financial programming as well as GUI a... 4 May 2010 13:27

How to skip/ignore NaN's when calculating means
I am running multiple iterations of a simulation process and then outputting means from all iterations with a simple call like this: % Calculate means from Monte Carlo runs tmax_mean=mean(tmax,2); Every so often... one time in a thousand or so, the random combination of parameters results in NaN output. Which of... 4 May 2010 14:33

APPCOEF IN WAVELET TOOL BOX
Hi I am analyzing a data using discrete wavelet transform with the following code. [C,L] = WAVEDEC(X,N,'wname') Approximation coefficients are extracted from the above using the following function A = APPCOEF(C,L,'wname',N) I have read the "appcoef" code. In that I found that reconstruction filter i... 4 May 2010 16:48