ml20: Function to return the ML20 hydrologic indicator statistic...
In jlthomps/EflowStats: Returns HIT/HAT Hydrologic Indicator stats for a given set of data
Description
Usage
Arguments
Value
Examples
View source: R/RProjects/HITHATStats/R/ml20.R
View source: R/ml20.R
Description
This function accepts a data frame that contains a column
named "discharge" and calculates base flow index ML20.
Divide the daily flow record into 5-day blocks. Find the
minimum flow for each block. Assign the minimum flow as a
base flow for that block if 90 percent of that minimum
flow is less than the minimum flows for the blocks on
either side. Otherwise, set it to zero. Fill in the zero
values using linear interpolation. Compute the total flow
for the entire record and the total base flow for the
entire record. ML20 is the ratio of total base flow to
total flow (dimensionless-spatial).
Usage
1
ml20(x)
Arguments
x
data frame containing a "discharge" column
containing daily flow values
Value
ml20 numeric value of ML20 for the given data frame
Examples
1
2
jlthomps/EflowStats documentation built on May 19, 2019, 12:48 p.m.
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Description Usage Arguments Value Examples
View source: R/RProjects/HITHATStats/R/ml20.R View source: R/ml20.R
Description
This function accepts a data frame that contains a column named "discharge" and calculates base flow index ML20. Divide the daily flow record into 5-day blocks. Find the minimum flow for each block. Assign the minimum flow as a base flow for that block if 90 percent of that minimum flow is less than the minimum flows for the blocks on either side. Otherwise, set it to zero. Fill in the zero values using linear interpolation. Compute the total flow for the entire record and the total base flow for the entire record. ML20 is the ratio of total base flow to total flow (dimensionless-spatial).
Usage
1 | ml20(x)
|
Arguments
x |
data frame containing a "discharge" column containing daily flow values |
Value
ml20 numeric value of ML20 for the given data frame
Examples
1 2 |
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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