Is there a measure or statistic that could quantify a steady increase in the spacing between data points in a time series?
For instance, in the figure, the points are clustered and dense near 0, but then they become more and more sparse.
Thanks
Is there a measure or statistic that could quantify a steady increase in the spacing between data points in a time series?
For instance, in the figure, the points are clustered and dense near 0, but then they become more and more sparse.
Thanks
Yes, there is the inhomogeneous Poisson process with rate $\lambda(t)$.
In this graph from Wikipedia the rate is increasing then decreasing; in your case it would be everywhere decreasing.