pub fn load_nexus_histogram(path: &Path) -> Result<NexusHistogramData, IoError>Expand description
Load histogram data from a NeXus file.
Reads /entry/histogram/counts (u64 4D), sums over the rotation angle
axis (axis 0), converts to f64, and transposes to NEREIDS convention
(tof, y, x). TOF values are converted from nanoseconds to microseconds.