What's Changed

• fix typo: (bi)liniar -> (bi)linear by @jungerm2 in #7
• add boundary conditions for CubicSpline interpolator by @jonasBoss in #5
  • Move CubicSpline interpolator to interp1d::cubic_spline module
  • add extrapolation
  • add not-a-knot boundary condition
  • add clamped boundary condition
  • add periodic boundary condition
  • make not-a-knot boundary condition the default
  • allow any first or second derivative as boundary condition
• Update ndarray dependency to v0.16 by @alex-appetiti in #8
• update thiserror to version 2.0
• update BuilderError
  • combine variants DimensionError and AxisLenght into ShapeError
  • add ValueError variant

New Contributors

• @jungerm2 made their first contribution in #7
• @alex-appetiti made their first contribution in #8

• major performance improvement for interp_scalar() methods ~-50%
• keywords and categorys in crate metadata

• performance improvement for Interp2D (Interp2D::index_point() is now much faster) -50% for most interpolation methods
• runtime specialization for interp_array methods when query dimension is Ix1 ~-20% improvement
• add interp_into() and interp_array_into() methods for interpolating into a user provided ArrayViewMut
  this can improve performance by avoiding memory allocations.
• fix crash when IxDyn dimensions are involved.

major performance improvement for VectorExtensions::get_lower_index.
From -24% for evenly spaced values up to 72% for randomized and
logarithmic spaced values.

• added type aliases for common interpolators
• make the VectorExtensions trait public
• add Interp1D::new_unchecked and Interp2D::new_unchecked methods
• add biliniar extrapolation
• impl Default for interpolation strategies

• add 2d interpolation
• add biliniar interpolation strategy
• rename Strategy to Interp1DStrategy and StrategyBuilder to Interp1DStrategyBuilder
• make extrapolate filed of Linear private add extrapolate(bool) method instead.

change interp_array() such that it can be called with any kind of array representation (owned, view, ...) technically this breaks public API, but due to type inference this should never manifest as a breaking change.

• updated package structure
• replaced Interp1DStrategy enum with individual structs
• added Strategy and StrategyBuilder trait
• added QubicSpline strategy
• added traits for custom strategies

Initial release with support for 1D interpolation along the first axis