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Carey

Mon Jan 22, 2007 10:39 am


Mode Method Help

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please help me improve my mode method. its only got one problem. the first number in the array does funny things. put in 1,1,1,2,2,2,2,2. the answer should be 5 instances of 2, but the ones get included in there for some reason.  :twisted: 


public String mode()
    {
        int arrayCount = 0;
        int[] highCount = new int[3];              //how many times a number appears in the array
        double[] highNumber = new double[3];             //the number that appears most in the array
        int modeCount = 1;                      //temp counter for how many times a number appears in the array (set to one to start)
        double modeNumber = numbers[0];         //the number to start looking at and counting for
        for (int a = 1 ; a < Array.getLength(numbers) ; a++)    //for how many numbers in the array
        {
            if (numbers[a] == modeNumber)              //if the number is the same as the number you are checking for...
            {
                modeCount+=1;                   //add one to the count
            }
            else                                    //if it's not the same...
            {
                if (modeCount > highCount[arrayCount] && modeCount > 1)      //if the number appears more times than the current highCount...
                {
                    highCount[arrayCount] = modeCount;      //replace the record with the current stats
                    highNumber[arrayCount] = modeNumber;
                }
                else if (modeCount == highCount[arrayCount] && modeCount > 1)
                {
                    arrayCount +=1;
                    if (arrayCount > 2)
                    {
                        return "No mode";
                    }
                    highCount[arrayCount] = modeCount;      //replace the record with the current stats
                    highNumber[arrayCount] = modeNumber;
                }
                modeCount = 1;                  //set the modeCount to 1
                modeNumber = numbers[a];        //set the number you are checking for to the current number
            }//end if statement
        }//end for loop
        if (modeCount > highCount[arrayCount] && modeCount > 1)      //if the number appears more times than the current highCount...
        {
            highCount[arrayCount] = modeCount;      //replace the record with the current stats
            highNumber[arrayCount] = modeNumber;
        }
        else if (modeCount == highCount[arrayCount])
        {
            arrayCount +=1;
            if (arrayCount > 2)
            {
                return "No mode";
            }
            highCount[arrayCount] = modeCount;      //replace the record with the current stats
            highNumber[arrayCount] = modeNumber;
        }
        if (arrayCount == 0)
        {
            if (highCount[0] == 0)
            {
                return "No mode";
            }
            return highCount[0]+" of "+highNumber[0];
        }
        else if (arrayCount == 1)
        {
            return highCount[0]+" of "+highNumber[0]+", and "+highCount[1]+" of "+highNumber[1];
        }
        else if (arrayCount == 2)
        {
            return highCount[0]+" of "+highNumber[0]+", "+highCount[1]+" of "+highNumber[1]+", and "+highCount[2]+" of "+highNumber[2];
        }
        else
        {
            return "No mode";
        }
    }



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wtd

Mon Jan 22, 2007 11:00 am


RE:Mode Method Help

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The code provided is insufficient.  It's missing context.  Where does this "numbers" array come from?


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Carey

Mon Feb 05, 2007 12:00 pm


Re: Mode Method Help

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i don't need help on the rest of the program, but since you asked so nicely here is the whole thing. its a BlueJ project, so if you don't use BlueJ, just delete everything except the Statistics.java file. also ignore the standard deviation image.


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Carey

Tue Mar 20, 2007 11:16 am


Re: Mode Method Help

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cmon people!!!! i need some help here!!!!


sorry about the necro-post, im desperate


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McKenzie

Tue Mar 20, 2007 7:57 pm


Re: Mode Method Help

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I don't see a problem.  After adding a main, I try your numbers 1,1,1,2,2,2,2,2 I get mode: 5 of 2.  Exactly what I should get.  Am I missing something here?