im.long {lakhesis}

Convert Incidence Matrix to Pairs (Long Format)

Description

Take an incidence matrix and convert it to a data frame of two columns, where the first column represents the row elements of the incidence matrix and the second column represents the column elements of the incidence matrix. Each row pair represents the incidence (or occurrence) of that row and column element together.

Usage

im.long(obj)

Arguments

obj

An incidence matrix.

Value

A data frame of two columns (row and column of the incidence matrix), in which row of the data frame represents a pair of an

Examples

data(quattrofontanili)
qf <- im.long(quattrofontanili)

# to export for uploading into the Lakhesis Calculator, use write.table() to 
# remove both row and column names:

# write.table(qf, file = 'qf.csv', row.names = FALSE, col.names = FALSE, sep = ",")