Numero (version 1.2.0)

nroRcppMatrix: Safety check for Rcpp calls

Description

Forces all values to numeric to be safely passed to C++ functions.

Usage

nroRcppMatrix(data, trim)

Arguments

data

A matrix or a data frame.

trim

if TRUE, empty rows and columns are removed.

Value

A matrix or a data frame with the attribute "binary" that contains the names of binary columns and "excl.rows" and "excl.columns" contain the names of rows and columns that were excluded.

Details

Converts all columns to values that have a numeric representation. Detects columns that can be represented as 0s and 1s.

Examples

# NOT RUN {
# Fully numeric data frame.
x <- data.frame(A=c(1,2,3,4), B=c(0,1,0,NA), C=c(2,3,4,5))
print(nroRcppMatrix(data=x, trim=TRUE))

# Matrix of characters, some of which can be converted to numbers.
x <- matrix(c("1","2","b","4","","6","7","8"), nrow=4, ncol=2)
print(nroRcppMatrix(data=x, trim=TRUE))

# Object that can be converted to numbers.
x <- list(text="abc", value="123")
print(nroRcppMatrix(data=x, trim=TRUE))

# Unusable object.
x <- list(text="abc", value="123", multiple=c("a","b","c"))
print(nroRcppMatrix(data=x, trim=TRUE))
# }