Syntax

This tool converts bedgraph or wiggle data into bigWig type.

• Wiggle format: The .wig format is line-oriented. Wiggle data is preceded by a UCSC track definition line. Following the track definition line is the track data, which can be entered in three different formats described below.

  • BED format with no declaration line and four columns of data:

    chromA  chromStartA  chromEndA  dataValueA
    chromB  chromStartB  chromEndB  dataValueB
    

  • variableStep two column data; started by a declaration line and followed with chromosome positions and data values:

    variableStep  chrom=chrN  [span=windowSize]
    chromStartA  dataValueA
    chromStartB  dataValueB
    

  • fixedStep single column data; started by a declaration line and followed with data values:

    fixedStep  chrom=chrN  start=position  step=stepInterval  [span=windowSize]
    dataValue1
    dataValue2
    

• The BedGraph format is described in detail at the UCSC Bioinformatics website