pivotAtSite: Pivot at-site data
In martindurocher/floodRFA: A R-package for regional frequency of floods

Description Usage Arguments Examples

Returns a matrix of a given variable with time in rows and station index in columns. Useful to obtain observations that occur at the same time.

pivotAtSite(x, ...)

## S3 method for class 'formula'
pivotAtSite(form, x)

`x`	Data.frame containing at-site date. If `x` is passed directly without formula, it is assumed that the first three columns are: station index, time, variable.
`form`	Formula that specify the variable of interest in `x` as well as time and location indexes.

site1 <- data.frame(site = 1, year = seq(2000,2010),
                     v =rnorm(11), w =rnorm(11))
site2 <- data.frame(site = 2, year = seq(1995,2007),
                     v =rnorm(13), w =rnorm(13))
site3 <- data.frame(site = 3, year = seq(1995,2010),
                     v =rnorm(16), w =rnorm(16))
xdf <- rbind(site1,site2, site3)
xdf; pivotAtSite(v~year+site,xdf)