[GSoC] Dataframes for D
john.michael.hall at gmail.com
Thu Jul 18 10:55:55 UTC 2019
On Thursday, 18 July 2019 at 05:03:38 UTC, Prateeek Nayak wrote:
Thanks for the update. I'm glad you're still making good progress.
I'm just looking over the readme.md. I noticed the "at" function
has a signature like at!(row, column)(). Because it uses a
template, doesn't that imply that the row and column parameters
must be known at compile-time? What if we want run-time access
using a function style instead of like df[0, 0]? mir's ndslice
also has a set of select functions that are also useful for
There's also a typo in the GroupBy text:
"Group DataFrame based on na arbitrary number of columns."
I noticed that you make a lot of use of static foreach's over
RowType in dataframe.d. Does that this means that this means
there isn't any extra cost if you use a homogeneous dataframe
with RowType.length == 1? If you can advertise that it doesn't
have any additional overhead for working with homogeneous, then
that's probably a win. You might also add a trait for
isHomogeneous that checks if RowType.length == 1.
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