Matlab

Indexing in 3D matrix
Hi all, I have a 3D matrix and a 2D matrix which I will use as mask in each slice of the matrix (third dim). For example a=rand(3,3,10); b=eye(3); for i=1:10 c=a(b,i); end The above doesn't work but one can see what I want. From each slice, i, in the matrix I want the diagonal elements. Any suggest... 10 Sep 2009 12:28

Infeasible start point
Hi I am using fmincon to optimize this function by knot and param function J=objfun(knot, param, k, P) x=P(:,1); knot=sort(knot); param=sort(param); M=spcol(knot, k, param); Mplus=pinv(M); d=Mplus*P; C=spmak(knot, d'); % plot(P(:,1),P(:,2),'mo',d(:,1), d(:,2), 'rx') Cc=(fnval(C,param))'; hold on % pl... 10 Sep 2009 06:55

2D Phase Unwrapping Algorithms
"Kumar Kumar" <none(a)none.com> wrote in message <h6fj4l$etg$1(a)fred.mathworks.com>... Hi All, just enquiring to find out if anyone on the net has implemented a specifiec 2D phase unwrapping algorithm as proposed by Mark Jenkinson as part of the FSL analysis tools. The algorithm is called PRELUDE and ... 10 Sep 2009 05:49

S-Functions and Global Variables
Hi How to access/update a variable/parameter present in S-Function by external .dll? ... 10 Sep 2009 02:32

Real-time Stripchart Delay
I'm using a timer (period 0.001s) to read data from device through serial port. I got the perfect signal from the the device. However, as soon as I used Stripchart to display the signal, my signal is distorted. There are several possible problems that can cause the distorted signal: - Reason comes from the device,... 9 Sep 2009 19:53

Distributing Matlab as part of a .NET project
Oscar, I assume you found the answer to your issue, but just in case anyone would like to know he was missing a linkage to the mclmcrrt.lib file, which should be located in the /extern/lib folder. "Oscar " <osgarpe(a)hotmail.com> wrote in message <h44taa$9ou$1(a)fred.mathworks.com>... I'm facing the same problem. ... 11 Sep 2009 06:14

SimScape- question on thermal capabilities
Good day All, I am looking to model a heat loss in a pipe with SimScape, but I am not sure if this is the right application for the job. Also it is very difficult to understand what governing equation used in the application without having it. I know that the equation for one dimensional steady state conduction ... 14 Sep 2009 07:26

Line Bisection Task in Matlab
Dear Matlabbers, I'm quite new to Matlab and would like to program a simple psychological experiment called the "line bisection task" for one of my projects. In the experiment the participant sees a basically blank screen with a single horizontal line somewhere on the screen (I've created images for this already)... 9 Sep 2009 07:28

Sliding Mode Control
Hi everybody,I'm new in this group,I'm working on 2-Sliding mode.is there any body who has experience in this field.Tnank You ... 9 Sep 2009 04:10

Segment length and overlap points for tfestimate
Hello, I have an input and output accl signal of a suspension system. I want to use the tfestimate function to get the frequency response and natural frequency of the system. The input and output signal have 29396 points, sampling freq = 100 Hz. By specifying segment length of 512, 1024, 2048 I got the natur... 9 Sep 2009 03:05