mirror of
https://github.com/zeek/zeek.git
synced 2025-10-02 22:58:20 +00:00
36 lines
No EOL
744 B
Text
36 lines
No EOL
744 B
Text
@load ./sum
|
|
@load ./variance
|
|
|
|
module Measurement;
|
|
|
|
export {
|
|
redef enum Calculation += {
|
|
## Find the standard deviation of the values.
|
|
STD_DEV
|
|
};
|
|
|
|
redef record Result += {
|
|
## For numeric data, this calculates the standard deviation.
|
|
std_dev: double &log &optional;
|
|
};
|
|
}
|
|
|
|
# This depends on the variance plugin which uses priority -5
|
|
hook add_to_reducer(r: Reducer, val: double, data: DataPoint, result: Result)
|
|
{
|
|
if ( STD_DEV in r$apply )
|
|
{
|
|
if ( result?$variance )
|
|
result$std_dev = sqrt(result$variance);
|
|
}
|
|
}
|
|
|
|
hook compose_resultvals_hook(result: Result, rv1: Result, rv2: Result) &priority=-10
|
|
{
|
|
if ( rv1?$sum || rv2?$sum )
|
|
{
|
|
result$sum = rv1?$sum ? rv1$sum : 0;
|
|
if ( rv2?$sum )
|
|
result$sum += rv2$sum;
|
|
}
|
|
} |