wrMisc (version 1.15.3.1)

firstOfRepLines: Reduce to first occurance of repeated lines

Description

This function concatenattes all columns of input-matrix and then searches like unique for unique elements, optionally the indexes of unique elements may get returned. Note: This function reats input as character (thus won't understand 10==10.0 ). Returns simplified/non-redundant vector/matrix (ie fewer lines), or respective index. faster than firstOfRepeated

Usage

firstOfRepLines(
  mat,
  outTy = "ind",
  useCol = NULL,
  silent = FALSE,
  debug = FALSE,
  callFrom = NULL
)

Value

simplified/non-redundant vector/matrix (ie fewer lines for matrix), or respective index

Arguments

mat

initial matrix to treat

outTy

for output type: 'ind'.. index to 1st occurance (non-red),'orig'..non-red lines of mat, 'conc'.. non-red concateneted values, 'num'.. index to which group/category the lines belong

useCol

(integer) custom choice of which columns to paste/concatenate

silent

(logical) suppress messages

debug

(logical) additional messages for debugging

callFrom

(character) allow easier tracking of messages produced

See Also

unique, nonAmbiguousNum, faster than firstOfRepeated which gives more detail in output (lines/elements/indexes of omitted)

Examples

mat <- matrix(c("e","n","a","n","z","z","n","z","z","b", 
  "","n","c","n","","","n","","","z"),ncol=2)
firstOfRepLines(mat,out="conc")