1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

C++ : need quick tips for easy histogram

Discussion in 'C++' started by trapeze, Sep 7, 2007.

  1. trapeze

    trapeze New Member

    Joined:
    Sep 7, 2007
    Messages:
    8
    Likes Received:
    0
    Trophy Points:
    0
    i'm stuck with assignment...

    i am trying to do easy histogram with x-axis info(like number options) and y-axis info(like # of occurrence) all within a figure by C++. however, i've no ideas to proceed at all.

    i am thinking about the following data: x-axis values are 1,2, and 3. y-axis values are 3, 7, and 4 for each x value respectively.

    i hope to hear you guys. great thx.
     
  2. trapeze

    trapeze New Member

    Joined:
    Sep 7, 2007
    Messages:
    8
    Likes Received:
    0
    Trophy Points:
    0
    if the above is too easy, please help me out w/ the folowing:

    Code:
    #include<iostream>
    using namespace std;
    
    int main()
    {
    
    int i;
    int j;
    int k;
    int occurrence[10]={0,0,0,0,0,0,0,0,0,0};
    int data[10]={6,14,82,42,46,32,97,44,27,68};
    for (j=0; j<10; j++)
      { 
        for (i=0; i<10; i++)
            { 
              if ((data[j] >= 10*i) && (data[j] < 10*i+9)) 
                 occurrence[i]++;
            }
      } 
    cout << "occurrence # is ";
    for (k=0; k<10; k++)
    cout << occurrence[k]<<" "; 
    
    }
    
    
    ----------------------------------------------------------
    i don't know how to plot. i can't find the funtions. x-axis is 0-9,10-19,..,90-99. y-axis is the result above.

    also, how can i generate zero array at once for occurrence w/o typing them out ?

    great thx !
     
  3. NewsBot

    NewsBot New Member

    Joined:
    Dec 2, 2008
    Messages:
    1,267
    Likes Received:
    1
    Trophy Points:
    0
    For plotting you need to be doing some graphics fucntions and can you tell what OS and compiler you are using.
     
  4. trapeze

    trapeze New Member

    Joined:
    Sep 7, 2007
    Messages:
    8
    Likes Received:
    0
    Trophy Points:
    0
    THX !

    WinXP 2.0
    Dev-C++
     

Share This Page