On Jul 29, 2017 12:55, "Nathaniel Smith" wrote:
I'd also like to see a more detailed motivation for this.
And, if it is useful, then that would make 3 operations that have special
case pairwise moving window variants (subtract, floor_divide, true_divide).
3 is a lot of special cases. Should ther
On Jul 29, 2017 12:23, "Stephan Hoyer" wrote:
This is an interesting idea, but I don't understand the use cases for this
function. In particular, what would you use n-th order ratios for?
There is no good use case for the nth order differences that I am aware of.
I just added that to mimic the
I'd also like to see a more detailed motivation for this.
And, if it is useful, then that would make 3 operations that have special
case pairwise moving window variants (subtract, floor_divide, true_divide).
3 is a lot of special cases. Should there instead be a generic mechanism
for doing this fo
This is an interesting idea, but I don't understand the use cases for this
function. In particular, what would you use n-th order ratios for?
One use case I can think of is estimating the slope of a log-scaled plot.
But here exp(diff(log(x))) is an easy substitute.
I guess ratio() would work in c
I have created PR#9481 to introduce a `ratio` function that behaves very
similarly to `diff`, except that it divides successive elements instead of
subtracting them. It has some handling built in for zero division, as well
as the ability to select between `/` and `//` operators.
There is currently
