blockToSeries convert 1-dimensional series into series of higher dimension.
For instance, suppose you have a time-series that consists of T = 100 days of d = 24 hours.
The function seriesToBlock converts the time-series X of Td = 2400 observations into a matrix of size
where each line corresponds to a specific day. This function is usefull if you need to perform the prediction day by day, instead of hour by hour.
The function can also be used to convert a matrix of expert prediction of dimension
c(dT,K) where K is the number of experts,
into an array of dimension
c(T,d,K). The new arrays of observations and of expert predictions can be
given to the aggregation rule procedure to perform
d-dimensional predictions (i.e., day predictions).
1 2 3
An array or a vector to be converted.
A positive integer defining the block size.
The function blockToSeries performs the inverse operation.
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