length.ffdf: Getting length of a ffdf dataframe
In OHDSI/ff: Memory-Efficient Storage of Large Data on Disk and Fast Access Functions
Description
Usage
Arguments
Value
Author(s)
See Also
Examples
Description
Getting "length" (number of columns) of a ffdf dataframe
Usage
1
2
## S3 method for class 'ffdf'
length(x)
Arguments
x
an ffdf object
Value
integer number of columns
Author(s)
Jens Oehlschlägel
See Also
Examples
1
2
length(as.ffdf(data.frame(a=1:26, b=letters)))
gc()
OHDSI/ff documentation built on May 7, 2019, 8:30 p.m.
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Description Usage Arguments Value Author(s) See Also Examples
Description
Getting "length" (number of columns) of a ffdf dataframe
Usage
1 2 | ## S3 method for class 'ffdf'
length(x)
|
Arguments
x |
an |
Value
integer number of columns
Author(s)
Jens Oehlschlägel
See Also
Examples
1 2 | length(as.ffdf(data.frame(a=1:26, b=letters)))
gc()
|
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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