A function to find all the combinations containing all the markers of interest.
Arguments
- markers
- a character vector containing one or more markers of interest. 
- markers_table
- a data.frame with ranked combination, reporting: SE, SP, number of markers composing the combination and the score (returned by ranked_combs()). 
Value
a numeric vector containing the numbers corresponding to the combinations containing all the selected markers.
Examples
if (FALSE) {
demo_data # combiroc built-in demo data (proteomics data from Zingaretti et al. 2012 - PMC3518104)
combs <- combi(data= demo_data, signalthr=450, combithr=1, case_class='A')  # compute combinations
# To show all the combinations with given markers.
combs_with(markers = c('Marker1', 'Marker2') , markers_table = combs)
}