How can I get the aggregate of two CloudWatch metrics in a single metric?

Question

I want to get average of network input and network output metric as a single metric from Amazon CloudWatch. Is there any way to achieve this or any script or opensource tools available?

Answer 1

You can use CloudWatch Metric Math AVG function to get the average of two metrics:

The AVG of a single time series returns a scalar representing the average of all the data points in the metric. The AVG of an array of time series returns a single time series. Missing values are treated as 0.