countPaths

0th

Percentile

Count the number of warping paths consistent with the constraints.

Count how many possible warping paths exist in the alignment problem passed as an argument. The object passed as an argument is used to look up the problem parameters such as the used step pattern, windowing, open ends, and so on. The actual alignment is ignored.

Keywords
ts
Usage
countPaths(d, debug = FALSE)
Arguments
d

an object of class dtw

debug

return an intermediate result

Details

Note that the number of paths grows exponentially with problems size. The result may be approximate when windowing functions are used.

If debug=TRUE, a matrix used for the computation is returned instead of the final result.

Value

The number of paths.

Aliases
  • countPaths
Examples
# NOT RUN {
  ds<-dtw(1:7+2,1:8,keep=TRUE,step=asymmetric);
  countPaths(ds)
  ## Result: 126

# }
Documentation reproduced from package dtw, version 1.21-3, License: GPL (>= 2)

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