File type
Tab-separated text file (.tsv or .txt). The first row must be a header line with column names.
Required columns required
| chr | Chromosome identifier. Accepted forms: plain integers 1–22, letters X / Y, or any of the above with a chr prefix (chr1, chrX, …). Other values are silently ignored. |
| start | Bin start coordinate (0-based, chromosome-relative). |
| end | Bin end coordinate (exclusive). Used to compute bin length and the genome-wide layout. |
Recognised optional columns optional
| filtered | true / false. Filtered bins are shown in grey and excluded from rectangle selection and statistics. |
| band | Cytoband name (e.g. p11.1). Shown in the hover tooltip; not plotted. |
| gc | GC fraction (0–1). Shown as Mean GC% in the selection statistics table. |
Additional numeric columns auto-detected
Every column that contains finite numeric values is automatically added to the Column dropdown. All such columns can be used as the y-axis and for selection statistics.
Columns named counts_3_scaled, counts_4_shrunk, or counts_5_smooth are treated as copy-number estimates: the y-axis is fixed to 0–4 and CN 0–4 reference lines are drawn.
Column order beyond the first three (chr, start, end) does not matter. Extra text or unrecognised columns are silently ignored.
