na {marray}R Documentation

Basic Statistical Functions for Handling Missing Values


Basic statistical functions for handling missing values or NA.
In,, and,,, missing values are omitted from the calculation.
The function calls cor with the argument use="pairwise.complete.obs".
The function only handles vector arguments and not lists. However, it gives the option of omitting the NAs (na.last=NA), of placing the NAs at the start of the ordered vector (na.last=F) or at the end (na.last=T).
The function is a modified version of scale which allows NAs in the variance calculation. If scale = T, the function f in uses to perform the variance calculation. The function is similar to the prod function with na.rm=TRUE. This function returns the product of all the values present in its arguments, omitting any missing values.


Yee Hwa Yang,

See Also

log, sum, mean, var, cor, order, scale, prod.

[Package marray version 1.8.0 Index]