get_valley

sherpa.utils.get_valley(y, x, xhi=None)[source] [edit on github]

Estimate the position of the minimum of the data.

Parameters:
  • x (y,) – The data points.
  • xhi (None or array_like, optional) – If given then the x array is taken to be the low-edge of each bin.
Returns:

ans – The X position of the minimum.

Return type:

scalar

Notes

If there are multiple minima with the same value then the location of the first minimim is used.