Count the frequency of a row vector in a data frame

rowMatch(df, vec = NULL)

Arguments

df

a data frame or matrix

vec

the vector for matching

Value

count the number of vector vec in the data frame

row.no row numbers of the vector vec in the data frame

Examples

df <- data.frame(V1=c(1L,2L),V2=LETTERS[1:3],V3=rep(1,12)) rowMatch(df,c(2,"B",1))
#> $count #> [1] 2 #> #> $row.no #> [1] 2 8 #>