appendToDataset

void appendToDataset(hid_t datasetId,  uint  axis,  size_t extension,
                      hid_t memtype,  const  void *  data,  hid_t dxpl =  H5P_DEFAULT)

Appends data to a chunked dataset along a specified dimension.

This function is designed for use cases where data is continuously added to a dataset, such as time-series data collection. The dataset must be chunked and have unlimited dimensions along the append axis.

Parameters

`datasetId`	Dataset identifier (must be chunked)
`axis`	Dimension along which to append (0-based index)
`extension`	Number of elements to extend the dataset
`memtype`	Memory datatype identifier
`data`	Pointer to the data buffer to append
`dxpl`	Dataset transfer property list (default: H5P_DEFAULT)

Throws

HDF5Exception if the append operation fails

Example:

// Append 100 new rows to a 2D dataset
double[] newData = new double[100 * numCols];
// ... fill newData ...
appendToDataset(dataset.handle(), 0, 100, H5T_NATIVE_DOUBLE, newData.ptr);