photobiology (version 0.9.30)

na.omit: Handle Missing Values in Objects

Description

These methods are useful for dealing with NAs in e.g., source_spct, response_spct, filter_spct and reflector_spct.

Usage

# S3 method for generic_spct
na.omit(object, na.action = "omit", fill = NULL, target.colnames, ...)
# S3 method for source_spct
na.omit(object, na.action = "omit", fill = NULL, ...)
# S3 method for response_spct
na.omit(object, na.action = "omit", fill = NULL, ...)
# S3 method for filter_spct
na.omit(object, na.action = "omit", fill = NULL, ...)
# S3 method for reflector_spct
na.omit(object, na.action = "omit", fill = NULL, ...)
# S3 method for object_spct
na.omit(object, na.action = "omit", fill = NULL, ...)
# S3 method for cps_spct
na.omit(object, na.action = "omit", fill = NULL, ...)
# S3 method for raw_spct
na.omit(object, na.action = "omit", fill = NULL, ...)
# S3 method for chroma_spct
na.omit(object, na.action = "omit", fill = NULL, ...)
# S3 method for generic_mspct
na.omit(object, na.action = "omit", fill = NULL, ...)
# S3 method for generic_spct
na.exclude(object, na.action = "exclude", fill = NULL, target.colnames, ...)
# S3 method for source_spct
na.exclude(object, na.action = "exclude", fill = NULL, ...)
# S3 method for response_spct
na.exclude(object, na.action = "exclude", fill = NULL, ...)
# S3 method for filter_spct
na.exclude(object, na.action = "exclude", fill = NULL, ...)
# S3 method for reflector_spct
na.exclude(object, na.action = "exclude", fill = NULL, ...)
# S3 method for object_spct
na.exclude(object, na.action = "exclude", fill = NULL, ...)
# S3 method for cps_spct
na.exclude(object, na.action = "exclude", fill = NULL, ...)
# S3 method for raw_spct
na.exclude(object, na.action = "exclude", fill = NULL, ...)
# S3 method for chroma_spct
na.exclude(object, na.action = "exclude", fill = NULL, ...)
# S3 method for generic_mspct
na.exclude(object, na.action = "exclude", fill = NULL, ...)

Arguments

object

an R object

na.action

character One of "omit", "exclude" or "replace".

fill

numeric Value used to replace NAs unless NULL, in which case interpolation is attempted.

target.colnames

character Vector of names for the target columns to operate upon, if present in object.

...

further arguments other special methods could require

Details

If na.omit removes cases, the row numbers of the cases form the "na.action" attribute of the result, of class "omit".

na.exclude differs from na.omit only in the class of the "na.action" attribute of the result, which is "exclude".

See Also

na.fail and na.action

Examples

# NOT RUN {
my_sun.spct <- sun.spct
my_sun.spct[3, "s.e.irrad"] <- NA
my_sun.spct[5, "s.q.irrad"] <- NA

head(my_sun.spct)

# rows omitted
zo <- na.omit(my_sun.spct)
head(zo)
na.action(zo)

# rows excluded
ze <- na.exclude(my_sun.spct)
head(ze)
na.action(ze)

# data in both rows replaced
zr <- na.omit(my_sun.spct, na.action = "replace")
head(zr)
na.action(zr)

# }