need help in calculation C#

y s

i have a problem to do calculation part.
i need to do 3 calculation part.
Now my problem is , my answer for conf and lift loop many times.
may i know how to correct it?

below are my coding:

string b = txtTotalItems.Text;
double e = Double.Parse(b);
double a;
double conf;
double lift;


                    richTextBox8.Clear();
          foreach (double SuppB in list10)

            {
               richTextBox7.Clear();
                foreach (double SuppA in list9)
                {
                    richTextBox9.Clear();
                    foreach (double wee in list8)
                    {
                        a= (wee / e) * 100;
                        richTextBox9.AppendText(string.Format("{0:n2}", a) + "\n");

                        conf = a/ (SuppA / e);
                        richTextBox7.AppendText(string.Format("{0:n2}", conf) + "\n");

                        lift = conf / (SuppB / e) / 100;
                        richTextBox8.AppendText(string.Format("{0:n2}", lift) + "\n");


                    }

                }
            }
hope anyone can help me..

10 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes15y ago
Accepted answer
Ah, I see :)

There are the same number of elements in each list and you want to do operations on the corresponding elements of each list.

In that case, you only need one 'for' statement, like this:

string b = txtTotalItems.Text;
double e = Double.Parse(b);
double a;
double conf;
double lift;

richTextBox7.Clear();
richTextBox8.Clear();
richTextBox9.Clear();

for(int i = 0; i < list8.Count; i++)
{
   double wee = list8[i];
   a = (wee / e) * 100;
   richTextBox9.AppendText(string.Format("{0:n2}", a) + "\n");

   double SuppA = list9[i];
   conf = a / (SuppA / e);
   richTextBox7.AppendText(string.Format("{0:n2}", conf) + "\n");

   double SuppB = list10[i];
   lift = conf / (SuppB / e) / 100;
   richTextBox8.AppendText(string.Format("{0:n2}", lift) + "\n");
}
0
y s15y ago
in list 8 , list 9 and list 10 ,each has 9 element.
for example:
in list8, has 3
then a = (3/5)*100
     a=60

in list9, has 4
then conf= 60/(4/5)
     conf = 75

in list10,has 4
then lift = 75/(4/5)/100
          = 0.94

* 5 is mine total transactions.
0
Vulpes15y ago
Are there at least as many elements in list9 and list10 compared to list8?

If there are, do you only want to calculate values for 'conf' and 'lift' for each value of 'wee' but for only the first value of 'SuppA' and 'SuppB'?

If there are not, do you want to calculate values for 'conf' and 'lift' for each value of 'wee' and as many values of SuppA and SuppB as are necessary to produce list8.Count values altogether?
0
y s15y ago
Now my output is showed like this:
RichTextBox9:
60.00
60.00
60.00
60.00
40.00
60.00
60.00
40.00
40.00

richTextBox 7:
75.00
75.00
75.00
75.00
50.00
75.00
75.00
50.00
50.00
75.00
75.00
75.00
75.00
50.00
75.00
75.00
50.00
50.00

RichTextBox 8:
0.94
0.63
0.94
0.94
0.63
0.63
0.94
0.94
0.94
0.94
0.63
0.94
0.94
0.63
0.63
0.94
0.94

but this not what i wanted.
my expected output is need the 1st nine value in richTExtBox 7 and 8 each.
0
Vulpes15y ago
Well, some duplication is inevitable because 'conf' depends on both 'SuppA' and 'wee' (via 'a') and 'lift' depends on both 'SuppB' and 'conf'. So I don't understand what the problem is?
0
y s15y ago
i had try your code before, but the answer for conf and lift still same, duplicate few times.
0
Vulpes15y ago
Try:

string b = txtTotalItems.Text;
double e = Double.Parse(b);
double a;
double conf;
double lift;

richTextBox7.Clear();
richTextBox8.Clear();
richTextBox9.Clear();

foreach (double wee in list8)
{
   a = (wee / e) * 100;
   richTextBox9.AppendText(string.Format("{0:n2}", a) + "\n");

   foreach (double SuppA in list9)
   {
   conf = a / (SuppA / e);
   richTextBox7.AppendText(string.Format("{0:n2}", conf) + "\n");

   foreach (double SuppB in list10)
   {
   lift = conf / (SuppB / e) / 100;
   richTextBox8.AppendText(string.Format("{0:n2}", lift) + "\n");
   }
   }
}
0
y s15y ago
can some one help me to correct my coding for my calculation part?
the attachment that i attached are my complete coding.
0
y s15y ago
the attachment are my complete code. hope can help me correct the calculation part. Thanks
0
Suthish Nair15y ago
the posted code are not complete. what is list10, 9 etc. attach your complete code, do not copy paste.
0