rounding to whole number

Hi R User, 
I was trying to convert a decimal value into integral (whole number). I used round function but some of the cells have the value less than 0.5 and it converted into 0. But I wanted these cell to have 1 instead of 0. Another way, I could multiply by 10. But l did not want it because it affected my results later.
I was wondering about how I can convert 0.2 to 1. For example 
data<-structure(list(site1 = structure(1:4, .Label = c("s1", "s2", 
"s3", "s4"), class = "factor"), A = c(0, 2.3, 2.6, 1.3), B = c(0.5, 
0.17, 2.9, 3)), .Names = c("site1", "A", "B"), class = "data.frame", row.names = c(NA, 
-4L))
output<-structure(list(site1 = structure(1:4, .Label = c("s1", "s2", 
"s3", "s4"), class = "factor"), A = c(0L, 3L, 3L, 2L), B = c(1L, 
1L, 3L, 3L)), .Names = c("site1", "A", "B"), class = "data.frame", row.names = c(NA, 
-4L))

Thanks for your suggestions in advance.
cheers,
KG

		 	   		  
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