search for: items_per_ord

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2012 Jan 26
1
adding additional information to histogram
...order can have multiple items, an order_id may be present multiple times in the CSV. I managed to compute the total value and the number of items for each order: oli <- read.csv("/tmp/order_line_items_data.csv", header=TRUE) orders_values <- tapply(oli[[2]], oli[[1]], sum) items_per_order <- tapply(oli[[2]], oli[[1]], length) I then can display the histogram of the order values: hist(orders_values, breaks=c(10*0:20,800), xlim=c(0,200), prob=TRUE) Now on this histogram, I would like to display the average number of items of the orders in each group (defined with the breaks)...
2012 Jan 18
4
R-Help
I am trying to create a frequency distribution and I am a bit confused. Here are the commands I have entered: > data <- read.csv(file="40609_sortedfinal.csv",head=TRUE,sep=",") > NumberOfActionsByStatus = data$STATUS > NumberOfActionsByUser = data$ETS_LOGIN > NumberOfBidOffer = data$BID_OFFER > NumberOfActionsByUser.freq = table(NumberOfActionsByUser) >