First convert your period
to minutes :
count/(period_to_seconds(time)/60)
# [1] 2.271293 4.237918 0.200000 1.200000 3.000000
Pergunta
I'm trying to calculate a rate per minute in R using the package lubridate. Here's what I'be tried:
library(lubridate)
time <- ms(c("5M 17S", "4M 29S", "5M 0S", "5M 0S", "5M 20S"))
count <- sample(1:20, 5)
count/time
This throws the error:
Error in count/time : Cannot divide numeric by period
How can I calculate rate per minute? I'm specifically after a solution using lubridate package
Solução
First convert your period
to minutes :
count/(period_to_seconds(time)/60)
# [1] 2.271293 4.237918 0.200000 1.200000 3.000000
Outras dicas
It aint't pretty, but:
time <- c("5m 17s", "4m 29s", "5m0s", "5m0s", "5m20s")
count <- sample(1:20, 5)
countTime <- function(count, time){
require(lubridate)
time <- ms(time)
timeConvert <- period_to_seconds(time)/60
countTime <- count/timeConvert
return(countTime)
}
countTime(count, time)
[1] 3.028391 1.338290 1.800000 3.600000 2.437500