r - Retrieve x/y values from a hist() graph -
let's graph using following command:
hist(rnorm(100, mean = 100, sd = 40), breaks=7) how can retrieve x/y values graph? mean realize hist works in ranges, then, how can ranges , plotted y values of barplot?
i have tried simple as:
> hist(rnorm(100, mean = 100, sd = 40), breaks=7)$x [1] "rnorm(100, mean = 100, sd = 40)" but can see no luck.
i have seen post (retrieve y value density function of given x value), relates density function , answer seems approximate function.
something this
set.seed(99) foo <- hist(rnorm(100, mean = 100, sd = 40), breaks=7, plot = false) foo # $breaks # [1] -50 0 50 100 150 200 # # $counts # [1] 2 11 34 47 6 # # $density # [1] 0.0004 0.0022 0.0068 0.0094 0.0012 # # $mids # [1] -25 25 75 125 175 # # $xname # [1] "rnorm(100, mean = 100, sd = 40)" # # $equidist # [1] true # # attr(,"class") # [1] "histogram" and "x" , "y"
foo$breaks # [1] -50 0 50 100 150 200 foo$counts # [1] 2 11 34 47 6 or alternatively mids in place or breaks cf. marat talipov's's comment below.
foo$mids # [1] -25 25 75 125 175 
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