useDynLib(cobs, spline_basis, spline_value)
##        ----  TODO: replace the above by calling into splines' package!!

import("SparseM") # need at least as.matrix()
## Import non-base functions we need explicitly,
## notably for which we define methods (here, only S3 ones):
importFrom("grDevices", xy.coords)
importFrom("graphics", plot, lines)
importFrom("stats",    knots, fitted, residuals)

export(cobs,
       conreg,
       drqssbc2,
       qbsks2,
       mk.pt.constr,
       ## "internal" but hopefully documented properly eventually:
       l1.design2,
       loo.design2,
       shat,

       ## Don't hide the plot methods on purpose (many surprising args):
       plot.cobs,
       plot.conreg
       )

S3method(fitted, cobs)
S3method(fitted, conreg)
S3method(residuals, cobs)
S3method(residuals, conreg)
S3method(knots, cobs)
S3method(knots, conreg)

S3method(print, cobs)
S3method(print, conreg)
S3method(predict, cobs)
S3method(predict, conreg)

## Don't hide the plot methods on purpose (many surprising args):
## S3method(plot, cobs)
## S3method(plot, conreg)
S3method(lines, conreg)
#TODO: S3method(lines, cobs)

S3method(summary, cobs)
#TODO: S3method(summary, conreg)