Description Usage Arguments Value Author(s) See Also Examples
Gets a index map for averaging blocks of data.
1 2 | ## Default S3 method:
getBlockAverageMap(n, h=1, s=0, ...)
|
n |
An |
h |
An |
s |
An (optional) positive |
... |
Not used. |
Returns an integer
vector of indices.
The double
attribute hApprox
specifies the on average number of
data points in each block.
Henrik Bengtsson
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | # Blocks of two and two
map <- getBlockAverageMap(n=20, h=2)
print(map)
## [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
## [1,] 1 3 5 7 9 11 13 15 17 19
## [2,] 2 4 6 8 10 12 14 16 18 20
## attr(,"hApprox")
## [1] 2
# Blocks of three and three
map <- getBlockAverageMap(n=21, h=3)
print(map)
## [,1] [,2] [,3] [,4] [,5] [,6] [,7]
## [1,] 1 4 7 10 13 16 19
## [2,] 2 5 8 11 14 17 20
## [3,] 3 6 9 12 15 18 21
## attr(,"hApprox")
## [1] 3
# Blocks of three and three (dropping non-complete blocks)
map <- getBlockAverageMap(n=20, h=3)
print(map)
## [,1] [,2] [,3] [,4] [,5]
## [1,] 1 4 7 10 13
## [2,] 2 5 8 11 14
## [3,] 3 6 9 12 15
## attr(,"hApprox")
## [1] 3
# Blocks with on average 2.5 data points
map <- getBlockAverageMap(n=20, h=2.5)
print(map)
## [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8]
## [1,] 1 4 6 9 11 13 16 18
## [2,] 2 5 7 10 12 14 17 19
## [3,] 3 NA 8 NA NA 15 NA 20
## attr(,"hApprox")
## [1] 2.5
# Blocks with on average 2.5 data points (shifted one position)
map <- getBlockAverageMap(n=20, h=2.5, s=1)
print(map)
## [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8]
## [1,] 1 4 7 9 12 14 16 19
## [2,] 2 5 8 10 13 15 17 20
## [3,] 3 6 NA 11 NA NA 18 NA
## attr(,"hApprox")
## [1] 2.5
# Blocks with on average 2.5 data points (shifted two positions)
map <- getBlockAverageMap(n=20, h=2.5, s=2)
print(map)
## [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8]
## [1,] 1 3 6 9 11 14 16 18
## [2,] 2 4 7 10 12 15 17 19
## [3,] NA 5 8 NA 13 NA NA 20
## attr(,"hApprox")
## [1] 2.5
# Blocks with on average ~2.4 data points (becomes ~2.364)
map <- getBlockAverageMap(n=28, h=2.4)
str(map)
## [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [,11]
## [1,] 1 4 6 8 11 13 16 18 20 23 25
## [2,] 2 5 7 9 12 14 17 19 21 24 26
## [3,] 3 NA NA 10 NA 15 NA NA 22 NA NA
## attr(,"hApprox")
## [1] 2.363636
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