Description Usage Arguments Value Author(s) References Examples
This function optimises Brutsaert, W. (1977) cumulative infiltration (I): B, Ks and S.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | brutsaert(data = NULL, time, I, S = 0.1, Ks = 0.1, B = 1, para = 2,
group = NULL)
## Default S3 method:
brutsaert(data = NULL, time, I, S = 0.1, Ks = 0.1,
B = 1, para = 2, group = NULL)
## S3 method for class 'brutsaert'
predict(object, time = NULL, ...)
## S3 method for class 'brutsaert'
plot(x, xlab = "Time(Minutes)",
ylab = "Cumulative (mm)", main = NULL, layout = NULL, ...)
## S3 method for class 'brutsaert'
summary(object)
## S3 method for class 'brutsaert'
print(x, ...)
## S3 method for class 'brutsaert'
coef(object, ...)
|
data |
dataframe. It can contain data with column names of "time" and "I" |
time |
character or numeric. The name of time variable in the dataframe. If the "data" parameter contains "time", this will be ignored. The unit must be in seconds. |
I |
cumulative infiltration (I) or infiltration rate (i) [mm] |
S |
numeric. sorptivity parameter |
Ks |
saturated hydraulic conductivity |
B |
brutsaert parameter |
para |
numeric. Whether 2 or 3 parameter brutsaert model should be implemented. |
group |
character. The name of the group variables if the data is from different areas. |
object |
Model output object |
... |
Any other graphical parameter |
x |
a return object of the function. |
xlab |
x label of the plot |
ylab |
y label of the plot |
main |
Title of the plot |
layout |
plot layout |
Ks: optimised saturated hydraulic conductivity [L/T]
S: optimised sorptivity [LT^-0.5]
B: optmised B parameter
output: output of the group simulation
George Owusu
Brutsaert, W. (1977). Vertical infiltration in dry soil. Water Resour. Res., 13, 363-368.
1 2 3 4 5 6 7 8 9 10 11 12 13 | data=read.csv(system.file("ext","sys","exampleBEST.csv",package="vadose"))
brutsaert1<-brutsaert(data=data,time="time",I="I")
#print(gof(brutsaert1))
plot(brutsaert1)
predict(brutsaert1)
coef(brutsaert1)
#gof(brutsaert1)
#group simulation
data=read.csv(system.file("ext","sys","infiltration2.csv",package="vadose"))
assin_breko<- subset(data, ID=="41A20_1")
brutsaertg<-brutsaert(data=data,time="minutes",I="CumInfil",group="ID")
coef(brutsaertg)
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