In the previous versions of R (2.6.1), when a vector of NA was given to the functions 'sd' or 'var' with parameter na.rm = TRUE, it used to return NA. Now (2.7.1) it returns an ERROR : 

 

Example in 2.6.1: 

> sd(c(NA, NA, NA, NA), na.rm = TRUE)

[1] NA

 

Example in 2.7.1:

> sd(c(NA, NA, NA, NA), na.rm = TRUE)

Error in var(x, na.rm = na.rm) : paires d'éléments incomplètes

 

We are actually wondering if it is a bug to report, or if we have to manage it in our own R scripts.

 

Thanks a lot, best regards,

 

Laetitia

 







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