How to best divide table by table
Serguei Kaniovski <kaniovsk at wsr.ac.at> writes:
Hi all, how can I divide two tables of the same dimension so that all names are preserved, ie do not become NA? I have "tab1" and "tab2", each having names in the first column. I want "tab3" with the same names and values "tab1/tab2".
Explain. If tab1 and tab2 have names "in the first column", how do you expect the divide operation to work? Tables normally do preserve row/column names in arithmetic:
t1 <- t2 <- table(airquality$Month,airquality$Temp> 80) t1
FALSE TRUE 5 30 1 6 20 10 7 3 28 8 11 20 9 21 9
t1/t2
FALSE TRUE 5 1 1 6 1 1 7 1 1 8 1 1 9 1 1
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