L: Calculate line length variability.

In dslaw/clearskies: Clear Sky Models

Description

Line length variability is one of the five criterion used for detecting clear points. It is defined as:

L = ∑_{i=1}^{n} √{ (GHI_{i+1} + GHI_{i})^2 + (t_{i+1} + t_{i})^2 }

where t is the time series, and GHI is measured irradiance.

Arguments

x	Numeric vector of measured irradiance.

References

Global Horizontal Irradiance Clear Sky Models: Implementation and Analysis, Reno et al, 2012, pp. 30.

dslaw/clearskies documentation built on May 15, 2019, 4:21 p.m.