| dist_sum_pairwise {qfasar} | R Documentation |
Distance between pairs of fatty acid signatures
Description
The utility function dist_sum_pairwise computes the total distance
between all possible pairs of fatty acid signatures.
Usage
dist_sum_pairwise(sig_data, dist_meas = 1, gamma = 1)
Arguments
sig_data |
A numeric matrix of fatty acid signatures in column-major format. |
dist_meas |
An integer indicator of the distance measure to compute. Default value 1. |
gamma |
The power parameter of the chi-square distance measure. Default value 1. |
Value
The summed distance between all possible pairs of signatures.
Details
dist_sum_pairwise is an internal utility function. The signature
data in sig_data are presumed to be ready for analysis, which is best
accomplished by a call to the function prep_sig. Consequently, to
increase execution speed during simulations, no numeric error checking of the
signatures is performed. Please refer to documentation for the function
prep_sig for information regarding signature preparation.
Please refer to documentation for the function
dist_between_2_sigs for additional information regarding the
arguments dist_meas and gamma.
Utility functions called by dist_sigs_2_mean: