srckeep: Keep only the variables from the input listed in selections
In disk.frame: Larger-than-RAM Disk-Based Data Manipulation Framework
View source: R/srckeep.disk.frame.r
srckeep R Documentation
Keep only the variables from the input listed in selections
Description
Keep only the variables from the input listed in selections
Usage
srckeep(diskf, selections, ...)
Arguments
diskf
a disk.frame
selections
The list of variables to keep from the input source
...
not yet used
Examples
cars.df = as.disk.frame(cars)
# when loading cars's chunks into RAM, load only the column speed
collect(srckeep(cars.df, "speed"))
# clean up cars.df
delete(cars.df)
disk.frame documentation built on Aug. 24, 2023, 5:09 p.m.
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View source: R/srckeep.disk.frame.r
| srckeep | R Documentation |
Keep only the variables from the input listed in selections
Description
Keep only the variables from the input listed in selections
Usage
srckeep(diskf, selections, ...)
Arguments
diskf |
a disk.frame |
selections |
The list of variables to keep from the input source |
... |
not yet used |
Examples
cars.df = as.disk.frame(cars)
# when loading cars's chunks into RAM, load only the column speed
collect(srckeep(cars.df, "speed"))
# clean up cars.df
delete(cars.df)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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