gkernel (pyleoclim.utils.tsutils.gkernel)

pyleoclim.utils.tsutils.gkernel(t, y, h=3.0, step=None, start=None, stop=None, step_style='max')[source]

Coarsen time resolution using a Gaussian kernel

Parameters

  • t (1d array) – the original time axis

  • y (1d array) – values on the original time axis

  • step (float) – The interpolation step. Default is max spacing between consecutive points.

  • start (float) – where/when to start the interpolation. Default is min(t).

  • stop (float) – where/when to stop the interpolation. Default is max(t).

  • h (scalar; kernel e-folding scale) –

Returns

  • tc (1d array) – the coarse time axis

  • yc (1d array) – The coarse-grained time series

References

Rehfeld, K., Marwan, N., Heitzig, J., and Kurths, J.: Comparison of correlation analysis techniques for irregularly sampled time series, Nonlin. Processes Geophys., 18, 389–404, https://doi.org/10.5194/npg-18-389-2011, 2011.