Calculates quantiles of a track expression for intervals

Calculates quantiles of a track expression for intervals.

gintervals.quantiles(
  expr = NULL,
  percentiles = 0.5,
  intervals = NULL,
  iterator = NULL,
  band = NULL,
  intervals.set.out = NULL
)

Arguments

expr

track expression for which quantiles are calculated

percentiles

an array of percentiles of quantiles in [0, 1] range

intervals

set of intervals

iterator

track expression iterator. If 'NULL' iterator is determined implicitly based on track expressions.

band

track expression band. If 'NULL' no band is used.

intervals.set.out

intervals set name where the function result is optionally outputted

Value

If 'intervals.set.out' is 'NULL' a set of intervals with additional columns representing quantiles for each percentile.

Details

This function calculates quantiles of 'expr' for each interval in 'intervals'.

If 'intervals.set.out' is not 'NULL' the result is saved as an intervals set. Use this parameter if the result size exceeds the limits of the physical memory.

See also

gquantiles, gbins.quantiles

Examples

# \dontshow{
options(gmax.processes = 2)
# }

gdb.init_examples()
intervs <- gintervals(c(1, 2), 0, 5000)
gintervals.quantiles("dense_track",
    percentiles = c(0.5, 0.3, 0.9), intervs
)
#>   chrom start  end  0.5   0.3  0.9
#> 1  chr1     0 5000 0.04 0.020 0.16
#> 2  chr2     0 5000 0.08 0.034 0.18