Math Forum / Math Software / MATLAB / July 2008

Hi. Is there a way to have contourf draw its plots without
lines (so it's just the colored regions)? I can't find
a "no line" option as part of LineSpec.
Thanks!

Hi, I am wondering if anyone knows a way to save variable
data while running a Matlab function. My function collects
thousands of raw data points and saves them into a cell
array, which ends up with about 100 cells. Each cell is a

I have a 3d object on a 2d sine wave(or an image), and i
change the view from 0,90 to 0,60, the object remains and
the background disappears. How do i also rotate the
background alongwith the object or what do i do ?

Hi. Hopefully someone here can help me with this obstacle
I'm encountering. I'm trying to draw a contour map (with
the 'contourf' function), but I'd to define the outline of
the entire plot myself.

I am trying to figure out how to effectively label a
colorbar with 15 different strings -- each for 1 different
color increment in the jet colormap, and am having a lot of
trouble.  I have spent a lot of time looking at Matlab help

I have many matlab files with comment lines at the
beginning. With the syntax 'help <m_file>' you get these
comment lines. This is all well known of course, but I have
some files which seem to be coded in the same way but which

  I am trying to parse some data that looks like:
bfleft1=0
bfleft2=378
.

I have an N x 3 matrix and I would like to find the mean of values in
column 3 grouped by unique rows formed from the values in columns 1 and 2.
For example the following N x 3 matrix :
1 2 3

I have a problem with axes_GUI.
To solve it,I tried many ways which I have got from this
forum or others, but i couldn&#8217;t my problem. Please help me.
The problem is;

Good afternoon,
I have an executable that I am running through the dos
function. The file was compiled using VC++ and outputs
several lines to the console to give the user an idea of

I'm new to matlab, and could use some help.  There are a
couple questions I have.
I'm reading .csv files using csvread.  The files contain
time series, and data columns, and may be of varying

I am writing a GUI with dynamically updating components and
I need them to be generated from a button callback.  I have
written the function and the pushbuttons will render, but
the panel I need to create will not.  Any ideas?

Hi,
For my job i need to be able to have an array of different
images. i know the imread() function will read an image. but
i need to read/save multiple images and my boss wants them

I have these few lines of code which im sure i can make a
lot more efficient, but im really not sure how. I dont
really know how to vectorize this for loop, or if it can be
vectorized. here is the code:

I'm new to using the Matlab FEX, and am just curious as to how to get
the .m files downloaded from the FEX to work in Matlab.
Thank you,
mb