R: pass function with multiple parameters to data frame rows, using only some columns -

what trying seems super simple, cannot around it, , i've looked around similar questions, still cannot solve it... it's stupid question, here goes...

i have 1 column lists positions , 2 other list start , end, need check whether position within range defined start , end, each row...

mwe:

within.range <- function(pos, start, end){   if (pos>=start & pos<=end){     return(true)   } else{     return(false)   } }  my.df <- data.frame(gene=c("a","b","c","d","e"), chr=c(1,2,3,4,5), pos=as.numeric(c(34,23,6,46,765)), start=as.numeric(c(45,15,2,32,765)), end=as.numeric(c(86,38,9,41,767))) my.df 

how can pass function data frame?? best attempt is:

apply(my.df[,c("pos","start","end")], 1, within.range, start=my.df$start, end=my.df$end) 

but incorrect... maybe there whole better way accomplish same... thanks!

no need in apply loops here, do

with(my.df, start <= pos & end >= pos) ## [1] false  true  true false  true 

if want add column, use transform

transform(my.df, check.pos = start <= pos & end >= pos) #   gene chr pos start end check.pos # 1      1  34    45  86     false # 2    b   2  23    15  38      true # 3    c   3   6     2   9      true # 4    d   4  46    32  41     false # 5    e   5 765   765 767      true