% CAMILO PEREZ  FOR  CISC 106-010 
% (Heavily edited by P. Conrad, 10/02/06)

% graph the change in temperature from a chemistry experiment

% To read the data file you have to use  the following command.

load exper.dat;

% DEFINE Temperature and Chemical according to the data file.

temperatureCelsius = exper(:,2);

chemicalMl = exper(:,1);


% PLOTTING: We can apply grids, labels, titles, etc...

plot(chemicalMl, temperatureCelsius);

title('Graph of temperature change after chemical Y addition');

xlabel('Amt of Chemical Y in ml');
ylabel('Temp in Celsius 10 sec after addition of chem Y');

grid on;


% HERE COMES THE HARD AND TRICKY PART: Make files readable
% in the webpage.

% create a directory for the image file to be on the web
% the -p means "make all the directories on the path"

!mkdir -p ~/public_html/chem101

% this is like doing a "save as" in the graphical version of the
% matlab interface, and saving the plot as a JPEG file 

print -djpeg ~/public_html/chem101/exper1.jpg

% this commands makes EVERYTHING underneath the public_html 
% directory readable on the web (-R stands for "recursive", 
% 755 is the code that allows the web server to read the 
% files and make them available)

!chmod -R 755 ~/public_html