Matlab

Currently heavy optimization around a local optima
Wow, there are at least 1000 submissions with basically the same algorithm which do all some same sort of tweaking! While this is also interesting to see, I would much more like to see how general this is? So, just as an idea for the hosts: In the final analysis of the contest maybe let the passed submissions also run ... 4 May 2010 13:27

NI DAQ
Hello I started interfacing a data acquisition board. I'm using an NI DAQ. I should do the following: ai=analoginput('nidaq','Dev1'); in fact, if I get info regarding the NI DAQ, I obtain: daqhwinfo('nidaq') ans = AdaptorDllName: [1x68 char] AdaptorDllVersion: '2.15 (R2009b)' ... 4 May 2010 16:48

Matlab, Git and OS X
Hi everyone, I recently discovered that Matlab is able to handle version control systems such as CVS etc. After doing some reading I came to the conclusion that I really like to use Git as version control system. In the Matlab help I found that I have to do something with customerverctrl, but I honestly didn't un... 4 May 2010 12:19

problem with figure
Hello, Whenever I produce a figure and try to add some additional information to the figure (i.e., a legend, linear fit, etc.) a blank screen with axes pops up over my existing graph and fails to add the requested information. Any ideas what may be causing this? Thanks! ... 4 May 2010 12:19

Better coding: "make input and output modules" for a function
Hello, I am reading Richard Johnson's 'Matlab Programming Style Guidelines' (http://www.datatool.com/downloads/ matlab_style_guidelines.pdf). For functions, he recommends using 'input and output modules'. What are they? Is the recommendation to create a wrapper script to run a function, specify the inputs, a... 4 May 2010 12:19

exporting datasets to HDF4 file
Hello everyone, I am trying to export a Matlab array containing some values into an existing HDF4 file. This HDF4 file is from NASA's MODIS-Aqua sensor. I followed the steps in the MATLAB documentation in creating a dataset in the HDF4 file and exporting the Matlab array into the dataset. Naturally, there is no... 5 May 2010 13:46

Gosper Curve (where am i going wrong)?
I have been told to create the gosper curve, i was given the Axiom, Newx, Newy and the constants: theta and pi. However, i cant see where it is i am going wrong or if there are small details that i am missing out, i used the code for a koch curve and dragon curve to learn/teach myself how to creat the gosper curve. ... 4 May 2010 17:57

Jacobian matrix numerical at a specific point
Hello, I have a problem with numerical differentiation. I have a m-file which gives n=2553 values (a vector) for some input. The input consists in particular of a parameter vector x with about 12 elements. I want to get the jacobian matrix without using a "for"-loop and calculate each of the 2553 vectors seperate (T... 4 May 2010 11:11

Simulink freezes up during Simulation
I developed a simulink block which consists of subsystem and Embedded Matlab function using MatlabR2008b/Simulink ver. 7.2. After running several simulations, the system freezes up. No error message reported by Matlab. When I looked at the Matlab window, it is in the process of compiling the embedded Matlab. If success... 4 May 2010 11:11

Simulink different results
Hi, I have a simulink model. The solver is ode45 (Dormand-Prince) and the type: Variable Step. My model design a simple feedback system: an input block -> conditioning stage (input signals + output error signal) -> computing the error block -> output. Here comes the problem: I built another block (using only... 4 May 2010 19:04