staRdom (version 1.1.28)

eempf_ssc: Calculate the shift-and shape-sensitive congruence (SSC) between model components

Description

The data variable pf_models can be supplied as list of PARAFAC models, output from a splithalf analysis or list of matrices Please see details of calculation in: U.J. Wünsch, R. Bro, C.A. Stedmon, P. Wenig, K.R. Murphy, Emerging patterns in the global distribution of dissolved matter fluorescence, Anal. Methods, 11 (2019), pp. 888-893

Usage

eempf_ssc(
  pfmodels,
  tcc = FALSE,
  m = FALSE,
  cores = parallel::detectCores(logical = FALSE)
)

Value

(list of) tables containing SCCs between components

Arguments

pfmodels

list of either PARAFAC models or component matrices

tcc

if set TRUE, TCC is returned instead

m

logical, if TRUE, emission and excitation SSCs or TCCs are combined by calculating the geometric mean

cores

number of CPU cores to be used

Examples

# \donttest{
pf_models <- pf3[1:3]

sscs <- eempf_ssc(pf_models, cores = 2)
sscs

tcc <- eempf_ssc(pf_models, tcc = TRUE, cores = 2)
tcc
## mixed tcc (combine em and ex)
mtcc <- eempf_ssc(pf_models, tcc = TRUE, m = TRUE, cores = 2)
mtcc

## compare results from splithalf analysis
sh_sscs <- eempf_ssc(sh, cores = 2)

sh_sscs
## view diagonals only (components with similar numbers only)
lapply(sh_sscs, lapply, diag)
# }