Matlab

Adding column headers when saving/exporting as an Excel file
Hi, I have an array of numbers (lets say a 4x4 array), and I wish to export this to an Excel file - I've been using xlswrite and this works fine. However, I also want to have column headers in this array, so something like: Col1 Col2 Col3 Col4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 I'm struggling getting t... 26 Feb 2010 06:20

round numbers
Hello, If the function is for instance: function x = y (p) x = p * 0.5; end How can I make this function automatically give round answers for x? (floor) ... 23 Feb 2010 12:25

Problem with compiled function
A function has been compiled successfully by MCC (Linux Red Hat 6, Matlab 7.7_R2008b) The compiled application correctly worked for several weeks (hundreds of runs). Suddenly, the executable stops to work. If started, the fuction immediately freezes without any feedback. Once the executable is ran UNDER A DIFFER... 23 Feb 2010 13:33

curve length calculation
Hi, I got 11 group of xyz values. X: 0mm Y: 235.69mm Z: 85.24mm X: 0mm Y: 267.97mm Z: 73.95mm X: 0mm Y: 291.67mm Z: 49.29mm X: 0mm Y: 303.98mm Z: 17.39mm X: 0mm Y: 305.59mm Z: -16.77mm X: 0mm Y: 302.03mm Z: -50.79mm X: 0mm Y: 285.44mm Z: -80.7mm X: 0mm Y: 257.99mm Z: -101.09mm ... 23 Feb 2010 12:25

Warning: Directory access failure: ...
In reorganizing my directory structure, I moved a bunch of Matlab stuff around. Now I'm getting the error message shown above. I've checked the path and it no longer includes the offending files. How can I get rid of the error messages? Thanks Jack ... 23 Feb 2010 12:25

Intergration
Hi, Sorry I am new at Matlab so I hope this all makes sense. I have a set of data A which is a matrix size [1, 17937]: e.g. 30911 30883 30857 30853 30831 The values are acceleration, and each row is a time slot of a set time which equals 0.0067, I am trying to find the Velocity and Displacement of ea... 23 Feb 2010 11:17

Using the 'coneplot' function
Hi everyone I've been having some trouble using the coneplot function. I want to create a plot very similar to the one in the example on the MathWorks pages. I have 6 arrays as follows: x-,y- and z-component of each vector x-,y- and z-component of where I want each cone or arrow to go Despite reading the ... 23 Feb 2010 11:17

Matlab Engine issues
Hello, I am triyng to implement Matlab in a c++ program. http://www.cl.cam.ac.uk/~sjeh3/wii/ The application is using gtk a wii mote lib and the Matlab Camera Calibration Toolbox (http://www.vision.caltech.edu/bouguetj/calib_doc/). it works perfectly. I want to use matlab ploting tools to build a graphic provided... 25 Feb 2010 09:07

access data from whole cell array
I have a 18x18 cell matrix with each cell containing a 1000x1 column vector. I wish to copy the first 100 points of each cell into another cell matrix. My first intuition is to use newdata = old_data{:}(1:100,1) but I get a bad cell reference. Can I go about accessing this data without addressing each cell individually... 23 Feb 2010 10:09

Bug in datevec
Hi there Do you have an idea how to fix a problem with "datevec". there seems to be a problem at 24 O'clock. For instance please try below example. Please note this is in the middle of a code with massive data so I cant change it manually. [year, month, day,hour] =datevec('2008/03/31 24:00:00','yyyy/mm/dd HH:MM:... 23 Feb 2010 19:21