Create Objects of class circular for Circular data.
The function circular is used to create circular objects. as.circular and is.circular coerce an object to a circular and test whether an object is a circular data.
circular(x, type = c("angles", "directions"),
units = c("radians", "degrees", "hours"),
template = c("none", "geographics", "clock12", "clock24"),
modulo = c("asis", "2pi", "pi"),
zero = 0, rotation = c("counter", "clock"), names)
## S3 method for class 'circular'
as(x, control.circular=list(), ...)
## S3 method for class 'circular'
is(x)
## S3 method for class 'circular'
print(x, info=TRUE, ...)x |
a vector or a matrix. If a data.frame is supply then it is corced to a matrix. |
type |
the type of measures (Not Used Yet). |
units |
units of the measures. |
template |
how the data should be plotted. This set |
modulo |
if we need to reduce the measures to modulo. |
zero |
the zero of the axes (in radians, counter). |
rotation |
the orientation of the axes. |
names |
names of the data. |
info |
if |
control.circular |
the attribute (coordinate system) used to coerced the resulting objects. See |
... |
For |
an object of class circular. Since version 0.3-5 the previous class of the object is retain.
Claudio Agostinelli
x <- circular(c(pi, pi/3, pi/4)) print(x) is.circular(x) x <- circular(runif(10, -pi/2, pi/2), template="geographics") plot(x) class(x) x <- circular(data.frame(runif(10, -pi/2, pi/2))) plot(x) class(x) cbind(x, x) # the matrix, cbind, rbind functions unclass and lost attributes! ########Use it with care. x <- c(pi/12,2*pi+pi/12) print(x) x <- unique(x) print(x) x[1]==x[2] all.equal(x[1], x[2]) x <- as.circular(pi, control.circular=list(units="radians", zero=pi)) y <- conversion.circular(circular(pi), zero=pi) res <- plot(x) points(y, col=2, plot.info=res)
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