calculateChunks: Calculates number of chunks, returns chunk head/tail indices...
In Peder2911/DB_gratia: Functions that improves handling of big data with redis (redux)
Description
This function calculates the number of chunks to make, and returns
head/tail index pairs c(head,tail) in a list list(c(head1,tail1) ... c(headn,tailn))
the maximum length of a chunk is given by the threshold parameter, which
should be set according to the size of the data in each row, and the
intensity of the calculation.
Usage
1
calculateChunks(len, threshold)
Examples
1
2
3
4
5
len <- nrow(mtcars)
chunks <- calculateChunks(len,10)%>%
chunkIndices()
mtcars[chunkIndices[[1]],]
Peder2911/DB_gratia documentation built on May 26, 2019, 9:30 a.m.
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Description
This function calculates the number of chunks to make, and returns head/tail index pairs c(head,tail) in a list list(c(head1,tail1) ... c(headn,tailn)) the maximum length of a chunk is given by the threshold parameter, which should be set according to the size of the data in each row, and the intensity of the calculation.
Usage
1 | calculateChunks(len, threshold)
|
Examples
1 2 3 4 5 | len <- nrow(mtcars)
chunks <- calculateChunks(len,10)%>%
chunkIndices()
mtcars[chunkIndices[[1]],]
|
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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