dplR (version 1.7.6)

as.rwl: as.rwl

Description

Attempts to turn its argument into a rwl object.

Usage

as.rwl(x)

Value

An object of class c("rwl", "data.frame") with the series in columns and the years as rows. The series IDs are the column names and the years are the row names.

Arguments

x

a data.frame or matrix with series as columns and years as rows

Author

Andy Bunn. Patched and improved by Mikko Korpela.

Details

This tries to coerce x into class c("rwl","data.frame"). Failable.

Examples

library(graphics)
library(stats)
library(utils)
## Toy
n <- 100
## Make a data.frame that is tree-ring like
base.series <- 0.75 + exp(-0.2 * 1:n)
foo <- data.frame(x1 = base.series + abs(rnorm(n, 0, 0.25)),
                  x2 = base.series + abs(rnorm(n, 0, 0.25)),
                  x3 = base.series + abs(rnorm(n, 0, 0.25)),
                  x4 = base.series + abs(rnorm(n, 0, 0.25)),
                  x5 = base.series + abs(rnorm(n, 0, 0.25)),
                  x6 = base.series + abs(rnorm(n, 0, 0.25)))
# coerce to rwl and use plot and summary methods
foo <- as.rwl(foo)
class(foo)
plot(foo, plot.type="spag")
summary(foo)