% chemtable.m --  just a help file
% to set up the periodic table the first time, type
%        clear
% and then run the m-file
%        makeptab
% to load an established periodic table, type
%        load ptable
% check your variable by typeing
%        who
%
% Now try typing in the following
%        plot(MeltingPt,'+g');
%        hold on;
%        i=find(Group==1)
%        plot(i,MeltingPt(i),'or')
%
% Now type two more commands to circle group 2 in red
% For the adventurous - try a 3d plot involving group, atomic number,
%   and a characteristic such as melting point.
% If errors are found, type in the correct value, e.g. abund(8)=0.52
% and resave ptable by typeing     save ptable