DySeq (version 0.13)

LastOccur: LastOccur

Description

Returns index of last occurence: Each row is scanned for the last column in which a certain integer is shown. Consider the following example: one row has the values 1-2-2-1-0-4, last occurence of 0 would be the fith column, last occurence of 1 would be the forth column, and so on.

Usage

LastOccur(x, y)

Arguments

x

Dataframe or matix containing one sequence per row

y

The value of interest

Value

returns a vector containing the index of the last event occurence for every row.

Examples

# Example 1: Small artificial data

 my.data<-matrix(c(1,0,1,1,
                   0,0,1,0,
                   1,0,0,0,
                   0,0,0,1),4,4, TRUE) # create data

 my.data # inspect sampe data
 LastOccur(my.data,1) # last Occurence of one
 LastOccur(my.data,0) # last Occurence of zero


# Example 2: Real data

 data(CouplesCope)
 LastOccur(CouplesCope[,2:49],1)