Display only 2 numbers after the decimal point in "Comment" | Forex Factory

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Display only 2 numbers after the decimal point in "Comment"

  • #1
  • First Post: Edited 10:49am Mar 12, 2008 5:26am | Edited 10:49am
Hi, could anybody here help me? I use
Comment("pivot=",pivot);
to show the pivot numbers,
and sometimes it displays 4 numbers after the decimal point, sometimes shows 1 or 2 numbers.
I wonder how to make it show a fixed numbers (say 2 numbers) after the decimal point. For example
if pivot=206.5787, then it shows "pivot=206.58". I used
Comment("pivot=%4.2f",pivot); but it's not working.

Many thanks!
  • #2
  • Mar 12, 2008 10:54am Mar 12, 2008 10:54am
use the normalizedouble function.

double NormalizeDouble(double value, int digits)Rounds the floating point value to the given precision. Returns normalized value of the double type.
The calculated StopLoss and TakeProfit values, as well as open price of pending orders must be normalized with a precision the value of which is stored in the pre-defined variable of Digits.
Parameters:
value - Floating point value.digits - Precision format, number of digits after decimal point (0-8).
  • #3
  • Mar 12, 2008 4:40pm Mar 12, 2008 4:40pm
Quoting dogberry
Comment("pivot=%4.2f",pivot); but it's not working.
Hi,

Use DoubleToStr function. You can find the description in the MQL4 Reference.
  • #4
  • Mar 12, 2008 6:48pm Mar 12, 2008 6:48pm
Quoting magnumfreak
use the normalizedouble function.

double NormalizeDouble(double value, int digits)Rounds the floating point value to the given precision. Returns normalized value of the double type.
The calculated StopLoss and TakeProfit values, as well as open price of pending orders must be normalized with a precision the value of which is stored in the pre-defined variable of Digits.
Parameters:
value - Floating point value.digits - Precision format, number of digits after decimal point (0-8).
"Digits" will automatically pull up how many number places there are after the decimal point on the given chart. So "Digits" on a GBP/USD chart will give you four places after the decimal, and on a GBP/JPY chart it will only give you two.

So in your code, you could put "Digits" (no quotes) in to the precision value portion of the Normalize function and it will automatically adjust on each chart. As it is, if it's just giving you back one number after the decimal point, that's because the answer is coming up as a simple tenth instead of in the hundredths for instance. Like writing one tenth as either .1 or .10; it drops the zero.
Never underestimate the powers of the Force.
  • #5
  • Last Post: Jan 20, 2014 6:16pm Jan 20, 2014 6:16pm
Quoting Vitovd
{quote} Hi, Use DoubleToStr function. You can find the description in the MQL4 Reference.
Used this to display only 2 decimal value....
string L21_H1 = DoubleToStr(L21_H1_0, 2);


Used this to sum upto 2 decimal value.... showing the rest (6) of the decimal in 0 (zero)
double L21_H1 = NormalizeDouble(L21_H1_0, 2);
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