How to do perform base 10 logarithm calculation in 8.1?
Hi! I need to perform a calculation where the log base 10 is taken of another calculated property. For whatever reason, Pega is letting me perform a *natural* logarithm, but not a base 10 logarithm. I know that Java is recognized in Pega, and so I looked up the commands for both.
In Java, Log10(x) will yield the log base 10 of x. However, this creates an error in Pega.
In Java, Log(x) will yield the natural log of x. This calculation works fine in Pega.
Why is this, and is there a work-around? I really need the log base 10 to run.
Thanks in advance! Please see the images attached.
Updated: 14 Jun 2021 7:38 EDT
Pegasystems Inc.
IN
OOTB Log function calculates log base e. Can you try creating a new function and use the below code to get the logarithm base 10 and use this function in the Declare Expression.
try {
Double myD = new Double(input);
double d = myD.doubleValue();
return java.lang.Math.log10(d);
} catch (Exception e) {
return 0;
}
Parameter for the function will be input.
Blue Rose Technologies
DE
Hi,
You can do as @Log(.SumSeverity)/@Log(10)
Please see screenshots for some examples below,
Maths behind this:
Loge(X) = Log10(X) * Loge(10) So Log10(X) = Loge(X) / Loge(10)