Histogram
Compute the height distribution histogram (DH). Use log scale to reveal small peaks next to a dominant background. Outputs marker measurements while showing the histogram interactively in-node. Equivalent to gwy_data_field_dh.
Inputs
| Name |
Type |
Required |
Description |
| field |
DATA_FIELD |
Yes |
Input field |
Outputs
| Name |
Type |
Description |
| measurements |
RECORD_TABLE |
Measurements at the two cursor markers (x/y positions and dx/dy) |
| marker_pair |
COORDPAIR |
Current cursor marker positions |
Controls
| Name |
Type |
Default |
Description |
| n_bins |
INT |
256 |
Number of histogram bins (10–1000) |
| y_scale |
dropdown |
linear |
Y-axis scale: linear or log |
Notes
- Cursor positions are stored as fractions of the histogram range and are set interactively.
- Log scale displays bins as log(count); bins with zero count appear as the minimum log value.
