## Generate, and hold, a random data set

General discussion about Mathematica features and functionality...
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### Generate, and hold, a random data set

I am trying to have the program generate a random data set and display the data and a box-and-whisker, which it does, although not as neatly as I would like. I would additionally like to have the program ask the student a question, at times, and not at others (this if for use on a smart board). My problem is that when the question is displayed the program changes the data set. I wondered if anyone could tell me how to change the code so that the data set would remain that same when the program is prompted to display the question. Thank you for your consideration, and for any and all advice.
Clifton McInnis

Code: Select all
`Needs["System`"]Manipulate[data = RandomInteger[{min, max}, num]; If[showquestion,    Style["The interquartile range is the range between the first and \third quartile. What is the interquartile range for this data set?"],    ""]  Grid[{{Text@Style[Row[{"data = ", data}], "Label", 14]}}] Show[   BoxWhiskerChart[data, BarOrigin -> Left],    ImageSize -> Large], {{num, 11,    "how many numbers are in the data set?"}, 11, 101, 10,   Appearance -> "Labeled"}, {{min, 1,    "What is the smallest possible value?"}, 1, 90, 1,   Appearance -> "Labeled"}, {{max, 11,    "What is the largest possible value?"}, 11, 100, 1,   Appearance -> "Labeled"}, {{showquestion, False,    "do you want to show the question?"}, {True, False}}]`

Clifton_McInnis

Posts: 2
Joined: Wed Jun 15, 2011 9:26 pm
Organization: Vicksburg-Warren School District
Department: Mathematics

### Re: Generate, and hold, a random data set

I certainly thank those who gave this problem a look and just wanted to let you know that I did come up with a solution of sorts, maybe not the best, but it works (you do have to press the button once to get the Box-and-Whisker). Still have a few issues with formatting that I wish were cleaned up a little. I did run across and area of concern where the program told me that the median of 1,2,3,4,5,11,12,13,14,15 was 5. At any rate here is the code that I used:
Code: Select all
`Needs["System`"]data := {1, 2, 3, 4, 5, 6, 11, 12, 13, 14, 15}Manipulate[newdata = RandomInteger[{min, max}, num];  If[showquestion,    Style["The interquartile range is the range between the first and \third quartile. What is the interquartile range for this data set?"],    ""]  Grid[{{Text@Style[Row[{"data = ", data}], "Label", 14]}}] Show[   BoxWhiskerChart[data, BarOrigin -> Left], ImageSize -> Large], Button["Change the data set?", data = newdata], {{num, 11, "how many numbers are in the data set?"}, 11, 101, 10,   Appearance -> "Labeled"}, {{min, 1,    "What is the smallest possible value?"}, 1, 90, 1,   Appearance -> "Labeled"}, {{max, 11,    "What is the largest possible value?"}, 11, 100, 1,   Appearance -> "Labeled"}, {{showquestion, False,    "do you want to show the question?"}, {True, False}}]`

Clifton_McInnis

Posts: 2
Joined: Wed Jun 15, 2011 9:26 pm
Organization: Vicksburg-Warren School District
Department: Mathematics