Nothing
################################################################################
##
## $Id: portfolioBasic.Arith.test.R 406 2007-04-19 16:30:22Z enos $
##
## Tests "+" method of "portfolioBasic"
##
################################################################################
library(portfolio)
load("portfolioBasic.Arith.test.RData")
## save(p.0, p.1, truth, file = "portfolioBasic.Arith.test.RData", compress = TRUE)
## Constructs data and portfolioBasics that should add ("+") correctly
data.0 <- data.frame(id = as.character(letters[1:20]), in.var = 1:20)
data.1 <- data.frame(id = as.character(letters[26:7]), in.var = 20:1)
p.0 <- new("portfolioBasic", id.var = "id", symbol.var = "symbol.var",
in.var = "in.var", ret.var = "ret.var", type = "sigmoid",
size = 10, data = data.0, sides = c("long", "short"))
p.1 <- new("portfolioBasic", id.var = "id", symbol.var = "symbol.var",
in.var = "in.var", ret.var = "ret.var", type = "linear",
size = 8, data = data.1, sides = c("long", "short"))
p.0@data$id <- as.character(p.0@data$id)
p.1@data$id <- as.character(p.1@data$id)
p.0@weights$id <- as.character(p.0@weights$id)
p.1@weights$id <- as.character(p.1@weights$id)
p.sum <- p.0 + p.1
stopifnot(
isTRUE(all.equal(p.sum, truth)),
nrow(p.sum@data) == length(union(p.0@data$id, p.1@data$id))
)
p.pos <- p.0
p.neg <- p.0
p.neg@weights$weight <- -1 * p.neg@weights$weight
p.sum <- p.pos + p.neg
stopifnot(validObject(p.sum, test = TRUE),
nrow(p.sum@weights) == 0)
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