API References

Nearest interpolation type

Previous interpolation type

interp(xi::Vector{T}, yi::VecOrMat{T}, ::Type{Nearest}; copy=true, sorted=false) where T
interp(xi::Vector{T}, yi::VecOrMat{T}, ::Type{Previous}; copy=true, sorted=false) where T

Returns a nearest interpolation function f(x) based on interpolated points xi and yi.

If xi has a duplicated value, ArgumentError is thrown.

If copy is true, this function makes internal copies of xi and yi, otherwise it uses references.

If sorted is false, this function sorts xi first, otherwise it assumes xi is monotonically increasing.

Examples

This is a simple interpolation example:

julia> using Interp1d

julia> xi = [-1.0, 0.0, 3.0/2.0];

julia> yi = [2.0, 1.0, 3.0];

julia> f = interp(xi, yi, Nearest);

julia> f(1.0)
3.0

yi can be matrix for multi univerate interpolations. The number of rows of yi must be equal to the length of xi.

julia> using Interp1d

julia> xi = [-1.0, 0.0, 3.0/2.0];

julia> yi = [ 2.0  1.0 3.0;
             -1.0 -4.4 2.0];

julia> f = interp(xi, yi, Nearest);

julia> f(0.0)
2-element Vector{Float64}:
  1.0
 -4.4