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MathGroup Archive 2010

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looping

  • To: mathgroup at smc.vnet.net
  • Subject: [mg106704] looping
  • From: glenn kuhaneck <mcguyver128 at yahoo.com>
  • Date: Thu, 21 Jan 2010 04:55:25 -0500 (EST)

this code is supposed to randomly select a student from a list, keep track of how many times he/she has been called, and how many answers they have gotten correct.

I am having problems getting the following code to repeat on request: i have tried do loops, while loops, and labels none have worked.   please help

These are the sample lists I am using for the code below
name = ( {
   {"apple"},
   {"bob"},
   {"cat"},
   {"dog"},
   {"ear"},
   {"frog"},
   {"greg"},
   {"hippo"},
   {"i9"},
   {"joe"}
  }); score = ({
   {0},
   {0},
   {0},
   {0},
   {0},
   {0},
   {0},
   {0},
   {0},
   {0}
  }); called = ({
   {0},
   {0},
   {0},
   {0},
   {0},
   {0},
   {0},
   {0},
   {0},
   {0}
  }); prcnt = ( {
   {0},
   {0},
   {0},
   {0},
   {0},
   {0},
   {0},
   {0},
   {0},
   {0}
  } );




this is the code to manipulate the lists created above
repeat = "yes";
c = "wrong";
l = Length[name];
n = RandomInteger[l - 1] + 1;


Label[begin]
"Student #"
n
name[[n]]
called[[n]] += 1;
"# times called"
called
"Old Score"
score
Input["Was the answer correct?", Button["Yes", c = "Right"]];
If[c == "Right", score[[n]] += 1]; c
"New Score"
score
"Your # of Correct Answers"
score[[n]]
"Your %"
prcnt[[n]] = score[[n]]/called[[n]]
"Class %"
prcnt
Input["Another ?", Button["No", repeat = "no"]];
If[repeat == "yes", Goto[begin], Goto[end]];
Label[end];
prcnt[[n]]



thank you for your assistance,
 Mr. Glenn J. Kuhaneck


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