James,
Thanks. Just to avoid crossed-wires, which features do you mean exactly?
Thanks, Matt
On 08/12/14 15:25, James Eales wrote:
Matt,
Very impressive show of what data.table can do
It would be helpful to have a wider set of these more 'advanced'
data.table function calls in the FAQ
I keep discovering more features, even after reading the FAQ, R-help
and intro vignette multiple times (this is not a criticism of the
docs, but praise for DT's flexibility)
Learning by example, even if you don't understand it fully the first
time, can be very powerful
James
On 8 December 2014 at 15:03, Matt Dowle <[email protected]
<mailto:[email protected]>> wrote:
As a few have asked already, will upload slides later. It was a
collection of different files and part was just an R script. I'll
need to merge together ...
On 08/12/14 14:44, Matt Dowle wrote:
Hi,
A video of my talk at H2O World in San Francisco recently :
https://www.youtube.com/watch?v=MvH1eTdsekA
0:00 Examples from two insurance companies using data.table
12:00 What is data.table, benchmarks dplyr and pandas
16:55 Overlap joins
20:00 Rolling joins
22:30 data.table radix sorting is better than hashing (dplyr
and pandas)
23:00 H2O (just parallel file reading and grouping as quick
test)
30:00 Quick rerun of talk at Bay Area R User Group (sorting
benchmark, automatic indexes flows through to dplyr, numeric
rounding)
33:10 My status
36:45 Questions
49:26 End
Comments/suggestions very welcome.
Matt
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