## functions
export(

efficiency, mchoice, sliwin, Rsq, resVar, 
pcrplot, confband, eff, repform,
expfit, pcrbatch, RMSE, calib,
pcrpred, pcrGOF, expcomp, pcrimport, pcrfit,
AICc, evidence, modlist, pcropt1, propagate,
ratiocalc, ratioplot, curvemean, PRESS, akaike.weights,
LR, RSS, residplot, Cy0, maxRatio, REST, drmfit, calib2
)

## S3 methods