[R] local average

[Jens Hainmueller]

Hello,

probably this isn't hard, but I can't get R to do this. Thanks for your
help!

Assume I have a matrix of two covariates:

n    <- 1000
Y    <- runif(n)
X    <- runif(n,min=0,max=100)
data <- cbind(Y,X)

Now, I would like to compute the local average of Y for each X interval 0-1,
1-2, 2-3, ... 99-100. In other words, I would like to obtain 100 (local)
Ybars, one for each X interval with width 1.

Also, I would like to do the same but instead of local means of Y obtain
local medians of Y for each X interval.

Best,
Jens