function prac2(varargin)
% This program was comlpeted by Michael Bellato on Dec 11, 2012.
% This program randomly selects a common GRE root word and its
meaning from a data file.
% It then selects 3 random root meanings. Once the user
attempts to match
% the root with the correct meaning, the program provides
feedback.
global wrrt wrmn ex x1 r a1 a2 b1 b2 b3 b4 p6 p7 p8 ac ai
ac=imread('180x.jpg'); % load Einstein image
ai=imread('180px.jpg'); % load Donkey image
randn('seed',sum(100*clock));
rand('seed',sum(100*clock));
if nargin==0 % create GUI intro
% Into Welcome
i1=uicontrol('style','text','units','normalized',...
'position',[0.25 0.89 0.5 0.1],'string','Welcome to the GRE
Word Root Tutorial','fontsize',16,...
'fontweight','bold','foregroundc','w','backgroundc','b');
pc=uicontrol('style','text','units','normalized',... %
instructions
'position',[0.1 0.5 0.7 0.2],'string',...
'You will be presented a word root in a black text box.
These roots come from the 240 most common word roots found on
the GRE. There will be 4 possible answers, only one of which is
a correct match. If your answer is incorrect, the background
will turn red. Once you find the correct answer the screen will
turn green and you will be shown examples that use the specific
word root. Click "Begin" to start then "Next" for the next
example. Try to avoid the donkey!',...
'fontsize',16,'fontweight','bold','foregroundc','w','backgroundc
','b');
set(1,'menubar','none','name','Welcome','color','w','units','nor
malized','pos',[.2 .2 .7 .7]);
ie=uicontrol('style','pushbutton','units','normalized',... %
Begin
'position',[0.45 0.3 0.1
0.1],'string','Begin','fontsize',16,...
'fontweight','bold','foregroundc','k','backgroundc','g',...
'callback','prac2(''callie'')');
elseif strcmpi(varargin,'callie')==1;
close all;
% if begin is pressed
end
if nargin==0 || strcmpi(varargin,'callp7')==1; % randomly
generates numbers at onset
% of pragram or when the next button is pressed
load msu2
% load word roots
wrrt = Roots;
% save roots in cell
x1=randi([2 242],[4 1]);
% generate 4 random numbers between 2
and 242
r=randi([1 4]);
% generate 1 random number between 1
and 4
a1=wrrt(x1(r));
% assign r (random 1-4) as target
root word (wrrt)
load msum
% load word meanings
wrmn = Roots;
% save roots in cell
% assign 1 random # from x1 [2 242] as word (msum)
b1=wrmn(x1(1)); b2=wrmn(x1(2)); b3=wrmn(x1(3)); b4=wrmn(x1(4));
load example
ex = Roots;
a2=ex(x1(r));
variable
% load examples of roots
% saves examples in cell
% assigns the respective example as a
end
%
displays GUI when the Begin or Next buttons have been
pressed
if strcmpi(varargin,'callie')==1 |
strcmpi(varargin,'callp7')==1;
%**************** create pushbutton
% Title
pa=uicontrol('style','text','units','normalized',...
'position',[0.25 0.89 0.5 0.1],'string','GRE Word root
Tutorial','fontsize',16,...
'fontweight','bold','foregroundc','w','backgroundc','b');
% Woord root
pb=uicontrol('style','text','units','normalized',...
'position',[0.05 0.75 0.8 0.1],'string',a1,'fontsize',16,...
'fontweight','bold','foregroundc','g','backgroundc','k');
% Meaning 1
p1=uicontrol('style','pushbutton','units','normalized',...
'position',[0.1 0.64 0.4 0.1],'string',b1,'fontsize',16,...
'fontweight','bold','foregroundc','b','backgroundc','w',...
'callback','prac2(''callp1'')');
% Meaning 2
p2=uicontrol('style','pushbutton','units','normalized',...
'position',[0.1 0.53 0.4 0.1],'string',b2,'fontsize',16,...
'fontweight','bold','foregroundc','b','backgroundc','w',...
'callback','prac2(''callp2'')');
% Meaning 3
p3=uicontrol('style','pushbutton','units','normalized',...
'position',[0.1 0.42 0.4 0.1],'string',b3,'fontsize',16,...
'fontweight','bold','foregroundc','b','backgroundc','w',...
'callback','prac2(''callp3'')');
% Meaning 4
p4=uicontrol('style','pushbutton','units','normalized',...
'position',[0.1 0.31 0.4 0.1],'string',b4,'fontsize',16,...
'fontweight','bold','foregroundc','b','backgroundc','w',...
'callback','prac2(''callp4'')');
% Examples Title
p5=uicontrol('style','text','units','normalized',...
'position',[0.1 0.17 0.2
0.07],'string','Examples:','fontsize',16,...
'fontweight','bold','foregroundc','k','backgroundc','c');
% Examples
p6=uicontrol('style','text','units','normalized',...
'position',[0.1 0.08 0.75 0.1],'string','','fontsize',16,...
'fontweight','bold','foregroundc','k','backgroundc','c',...
'callback','prac2(''callp6'')');
% Next
p7=uicontrol('style','pushbutton','units','normalized',...
'position',[0.88 0.03 0.1
0.1],'string','Next','fontsize',16,...
'fontweight','bold','foregroundc','w','backgroundc',[.9 0
.09],...
'callback','prac2(''callp7'')');
% Image
p8=uicontrol('style','pushbutton','units','normalized',...
'position',[0.6 0.4 0.3 0.3],'string','Good
Luck','fontsize',16,...
'fontweight','bold','foregroundc','k','backgroundc','g',...
'callback','prac2(''callp8'')');
set(1,'menubar','none','name','GRE Verbal
Practice','color','w','units','normalized','pos',[.2 .2 .7 .7]);
elseif strcmpi(varargin,'callp1')==1;
if r==1; set(1,'color','g');
% if the correct
answer is selected, based off r
set(p6,'string',a2,'fontsize',16,...
'fontweight','bold','foregroundc','k','backgroundc','c');
set(p8,'cdata',ac,'string','');
elseif r~=1; set(1,'color',[.8 0 0]);
set(p8,'cdata',ai,'string','NOPE'); end
% if the wrong answer is selected, based off r
elseif strcmpi(varargin,'callp2')==1;
if r==2; set(1,'color','g');
% if the correct answer
is selected, based off r
set(p6,'string',a2,'fontsize',16,...
'fontweight','bold','foregroundc','k','backgroundc','c');
set(p8,'cdata',ac,'string','');
elseif r~=2; set(1,'color',[.83 0 0]);
set(p8,'cdata',ai,'string','INCORRECT'); end
% if the wrong answer is selected, based off r
elseif strcmpi(varargin,'callp3')==1;
if r==3; set(1,'color','g'); % if the correct answer is
selected, based off r
set(p6,'string',a2,'fontsize',16,...
'fontweight','bold','foregroundc','k','backgroundc','c');
set(p8,'cdata',ac,'string','');
elseif r~=3; set(1,'color',[.86 0 0]);
set(p8,'cdata',ai,'string','TRY AGAIN'); end
% if the wrong answer is selected, based off r
elseif strcmpi(varargin,'callp4')==1;
if r==4; set(1,'color','g');
set(p6,'string',a2,'fontsize',16,... % if the wrong
answer is selected, based off r
'fontweight','bold','foregroundc','k','backgroundc','c');
set(p8,'cdata',ac,'string','');
elseif r~=4; set(1,'color',[.89 0 0]);
set(p8,'cdata',ai,'string','WRONG'); end
% if the wrong answer is selected, based off r
end