import(methods)
import(grid)
importFrom(grImport2, grid.symbols, readPicture)
importFrom(linbin, events, crop_events, event_gaps, event_overlaps, as_events, seq_events)
importFrom(grDevices, dev.off, pdf, colors)
importFrom(stats, aggregate, complete.cases, na.omit)
importFrom(utils, head, read.table, write.table, capture.output)
importFrom(readxl, read_excel)

export(plot.strata,
    strata,
    summary.strata,
    read.LAS)

exportClasses(
    strata
)

S3method(summary, strata)
S3method(print, summary.strata)
S3method(plot, strata)