Count contiguous regions in an interval list.
When the GATK reads in intervals from an intervals list, any intervals that overlap each other get merged into a single interval spanning the original ones. For example, if you have the following intervals:
One or more rod files containing intervals to check.
Number of separate intervals identified by GATK after merging overlapping intervals.You can use the -numOverlaps argument to find out how many cases you have of a specific number of overlaps.
java -Xmx2g -jar GenomeAnalysisTK.jar \ -T CountIntervals \ -R ref.fasta \ -0 output.txt \ -check intervals.list
These Read Filters are automatically applied to the data by the Engine before processing by CountIntervals.
This tool applies the following downsampling settings by default.
The arguments described in the entries below can be supplied to this tool to modify its behavior. For example, the -L argument directs the GATK engine restricts processing to specific genomic intervals (this is an Engine capability and is therefore available to all GATK walkers).
This table summarizes the command-line arguments that are specific to this tool. For details, see the list further down below the table.
|--check||List[RodBinding[Feature]]||||Any number of RODs|
|--out||PrintStream||stdout||An output file created by the walker. Will overwrite contents if file exists|
|--numOverlaps||int||2||Count all occurrences of X or more overlapping intervals; defaults to 2|
Arguments in this list are specific to this tool. Keep in mind that other arguments are available that are shared with other tools (e.g. command-line GATK arguments); see Inherited arguments above.
Any number of RODs. --check binds reference ordered data. This argument supports ROD files of the following types: BCF2, BEAGLE, BED, BEDTABLE, EXAMPLEBINARY, GELITEXT, OLDDBSNP, RAWHAPMAP, REFSEQ, SAMPILEUP, SAMREAD, TABLE, VCF, VCF3
Count all occurrences of X or more overlapping intervals; defaults to 2.
An output file created by the walker. Will overwrite contents if file exists.
GATK version 2.8-1-g2a26ec9 built at 2013/12/06 16:54:02.