search for: chlsummaryer9

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2010 Jun 21
2
Calculating a daily average
...lt;- subset(ER9r, Day == 101, select = c (Depth1j:Depth0.75j)) av4 <- mean(av4 [av4>0]) av5 <- subset(ER9r, Day == 102, select = c (Depth1j:Depth0.75j)) av5 <- mean(av5 [av5>0]) Depth<- c("SML") Day<- c(98, 99, 100, 101, 102) Average<- c(av1, av2, av3, av4, av5) chlsummaryER9 <- data.frame (Depth, Day, Average) chlsummaryER9 Any ideas on how to do this in less steps? Thanks, Emilija