drop.years {FlowScreen}R Documentation

Drop hydrologic years

Description

Removesthose hydrologic years where the fraction of missing data is above the defined threshold.

Usage

drop.years(TS, NAthresh = 0.8)

Arguments

TS

data.frame of streamflow time series loaded with read.flows.

NAthresh

Numeric value indicating the threshold for missing data points in any one year. Default is 0.80, indicating that years with more than 80 percent missing data will be omitted from the metric calculations. This value should always be set to greater than 0.1, as years with fewer observations than approximately 1 month will cause errors.

Value

Returns TS data.frame with hydrologic years with above the user-defined threshold dropped.

Author(s)

Jennifer Dierauer

Examples

data(caniapiscau)
cania.ts <- create.ts(caniapiscau, hyrstart = 4)
cania.ts <- drop.years(cania.ts, NAthresh = 0.75)

[Package FlowScreen version 2.1 Index]