sampleStep: Sampling of ascending numbers to ensure minimal spacing.
In tilingArray: Transcript mapping with high-density oligonucleotide tiling arrays
Description
Usage
Arguments
Details
Value
Author(s)
Examples
Description
Given a vector of ascending numbers and a step width, sample the
numbers such that the difference between consecutive numbers is greater
than or equal to step.
Usage
1
sampleStep(x, step)
Arguments
x
Numeric or integer vector.
step
Numeric scalar.
Details
The simple algorithm works greedily from x[1] to
x[length(x)]. First, x[1] is selected. Then, if x[i]
is selected, all numbers x[j] with j>i and
x[j]-x[i]<step are dropped. Then, i is set to the
smallest j with x[j]-x[i]>=step.
Value
A logical vector of the same length as x, representing the
selected subsample.
Author(s)
W. Huber <huber@ebi.ac.uk>
Examples
1
2
3
4
x = sort(as.integer(runif(20)*100))
sel = sampleStep(x, step=10)
x
x[sel]
tilingArray documentation built on Nov. 8, 2020, 10:59 p.m.
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Description Usage Arguments Details Value Author(s) Examples
Description
Given a vector of ascending numbers and a step width, sample the
numbers such that the difference between consecutive numbers is greater
than or equal to step.
Usage
1 | sampleStep(x, step)
|
Arguments
x |
Numeric or integer vector. |
step |
Numeric scalar. |
Details
The simple algorithm works greedily from x[1] to
x[length(x)]. First, x[1] is selected. Then, if x[i]
is selected, all numbers x[j] with j>i and
x[j]-x[i]<step are dropped. Then, i is set to the
smallest j with x[j]-x[i]>=step.
Value
A logical vector of the same length as x, representing the
selected subsample.
Author(s)
W. Huber <huber@ebi.ac.uk>
Examples
1 2 3 4 | x = sort(as.integer(runif(20)*100))
sel = sampleStep(x, step=10)
x
x[sel]
|
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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