get1dFrom2d {dissimilarities} | R Documentation |
2D-indexing to 1D-indexing
Description
Efficiently computes 1D-indexing from 2D-indexing
Usage
get1dFrom2d(i,j, N)
Arguments
i |
An integer specifying the row index |
j |
An integer specifying the column index - must be different from i as "dist" object does not store the diagonal entries. |
N |
The number of observations in the original data matrix |
Details
Converts 2D indexing (a row-column pair) into 1D indexing (as used in R's "dist" objects), given the number of observations N.
Currently, name-based indexing is not supported."
Value
An integer specifying the 1d index
Author(s)
Minh Long Nguyen edelweiss611428@gmail.com
Examples
N = 5
for(i in 1:4){
for(j in (i+1):5){
print(get1dFrom2d(i,j,N))
}
}
[Package dissimilarities version 0.3.0 Index]