00:03:07 Olivier Leroy: Vintage dessert recipe
00:04:46 Olivier Leroy: https://tenmorebites.com/2015/09/26/skunk/
00:07:34 Olivier Leroy: https://en.wikipedia.org/wiki/Ambrosia_(fruit_salad)
00:10:37 Olivier Leroy: start
00:12:27 Olivier Leroy: In my mind a list is a recursive vector
00:13:41 Steffi LaZerte (she/her): "Vectors come in two flavours: atomic vectors and lists" Chp 3 Introduction
00:13:49 Olivier Leroy: Reacted to ""Vectors come in two..." with 👍
00:13:55 Gabby Palomo Munoz: Reacted to ""Vectors come in two..." with 💯
00:14:32 Gabby Palomo Munoz: There's also map_dfr or something? I think it's deprecated but it's still there... right?
00:14:58 Jeffrey Stevens: Replying to "There's also map_dfr..."
I think it is superceded rather than deprecated.
00:15:19 Gabby Palomo Munoz: Replying to "There's also map_dfr..."
@Jeffrey Stevens what's the difference?
00:15:44 Jeffrey Stevens: Replying to "There's also map_dfr..."
Deprecated will eventually go away. Superceded is maintained but there is a betterr way to do it.
00:15:46 Steffi LaZerte (she/her): Replying to "There's also map_dfr..."
Yes, but as you said, not recommended because it is confusing as it implies it acts like map_lgl etc., but it doesn't. I've never really understood it 😅
00:15:59 Gabby Palomo Munoz: Reacted to "Deprecated will even..." with 😍
00:16:18 Derek Sollberger (he/him): Reacted to "Deprecated will even..." with 😍
00:16:58 Gabby Palomo Munoz: Reacted to "Yes, but as you said..." with 👍🏻
00:17:55 Steffi LaZerte (she/her): I was so happy to learn that ~ is pronounced "twiddle" that I ran into my spouses office to share 😂
00:18:06 Olivier Leroy: Tilda also
00:18:24 Jeffrey Stevens: Reacted to "I was so happy to le..." with ➕
00:18:34 Derek Sollberger (he/him): Reacted to "I was so happy to le..." with ➕
00:19:56 Steffi LaZerte (she/her): However, using the ... is now not encouraged (map gives you a message/warning if you do, I think)
00:20:00 Olivier Leroy: I am not an huge fan of the formula syntax, it use a lot of metaprogramming to works and I am always afraid I misunderstood it
00:20:43 Olivier Leroy: I used that anonymous function a lot” (length(unique(x)))
00:22:02 Steffi LaZerte (she/her): I really like the new R anonymous syntax: \(x) length(unique(x)) Still compact, but allows you to set your own argument names
00:22:38 Olivier Leroy: Reacted to "I really like the ne..." with 👍
00:22:47 Gabby Palomo Munoz: Replying to "I really like the ne..."
All of this is so confusing to me because is it function(x), ~, or \(x)
00:22:55 Gabby Palomo Munoz: Replying to "I really like the ne..."
Too many ways to say the same thing. I get confused.
00:23:04 Derek Sollberger (he/him): Reacted to "All of this is so co..." with 👍
00:23:34 Steffi LaZerte (she/her): Replying to "I really like the ne..."
They are all equivalent, with the exception of in ~ you have to use the built-in argument names, in function(x) or \(x) you choose the argument name. I.e. you can say function(my_arg) or \(my_arg) for example.
00:25:06 Jeffrey Stevens: I was very happy to see the explanation of . vs .x vs ..1
00:25:25 Gabby Palomo Munoz: Replying to "I was very happy to ..."
They just lost me with ..1
00:25:30 Olivier Leroy: Reacted to "I was very happy to ..." with 👍
00:25:59 Olivier Leroy: Here is “.” Is the place holder ?
00:26:02 Jeffrey Stevens: Replying to "I was very happy to ..."
. is for one argument
.x and .y are for two arguments
..1, ..2, ..3 etc are for more arguments
00:26:03 Olivier Leroy: unsure
00:26:09 Steffi LaZerte (she/her): Replying to "I was very happy to ..."
It's a way of referring to the arguments by position, when you might have up to n arguments. It's much more relevant with the pmap family.
00:26:25 Steffi LaZerte (she/her): Replying to "I was very happy to ..."
..1, ..2, ..., ..n
00:27:09 Steffi LaZerte (she/her): Replying to "Here is “.” Is the p..."
. is the argument 😅
00:27:51 Olivier Leroy: Replying to "Here is “.” Is the p..."
Ouch
00:28:48 Olivier Leroy: Good trial/error!
00:28:52 Steffi LaZerte (she/her): Replying to "Here is “.” Is the p..."
Which is why we shouldn't use it... So confusing!
00:28:58 Jeffrey Stevens: Reacted to "Good trial/error!" with ➕
00:29:02 Steffi LaZerte (she/her): Reacted to "Good trial/error!" with ➕
00:33:14 Steffi LaZerte (she/her): I use map() all the time, but had never heard of modify(), I'm so happy! I think I can use that a lot in future.
00:33:27 Olivier Leroy: One quick point purrr::map is diff than base::Map
00:33:45 Steffi LaZerte (she/her): Reacted to "One quick point purr..." with 👍🏻
00:36:14 Olivier Leroy: powering
00:37:25 Olivier Leroy: I did not about this one and will prob use it
00:38:43 Steffi LaZerte (she/her): There is the furrr package which impliments parallized purrr functions
00:41:33 Steffi LaZerte (she/her): Messages prove that it worked 😉
00:43:36 Olivier Leroy: Useful in simulation (sadly I am not doing much of that now ..)
00:44:10 Steffi LaZerte (she/her): I saw this usage of pmap in a conference presentation last year and it totally blew my mind 🤯
00:44:20 Olivier Leroy: Reacted to "I saw this usage of ..." with 👍
00:44:26 Olivier Leroy: Replying to "I saw this usage of ..."
Still blew mine
00:44:32 Steffi LaZerte (she/her): Reacted to "Still blew mine" with 😂
00:48:22 Steffi LaZerte (she/her): Another function that I can totally see me using that I had no idea about!!! So exciting 😁
00:52:44 Olivier Leroy: I will be so lost between decimal . and .. (zoom is also lost and want to capitalize after .)
00:53:03 Steffi LaZerte (she/her): ggplot(mtcars, aes(hp, mpg)) +
reduce2(c(8,4,2), ...)
00:53:41 Derek Sollberger (he/him): aside: Maelle Salmon blog post with an example of `reduce`
https://masalmon.eu/2023/07/26/reduce/
00:53:48 Olivier Leroy: Reacted to "aside: Maelle Salmon..." with 👍
00:56:24 Olivier Leroy: Go back in time Hadley!
00:56:25 Steffi LaZerte (she/her): Reacted to "aside: Maelle Salmon..." with 👍🏻
00:56:30 Jeffrey Stevens: Reacted to "Go back in time Hadl..." with ➕
00:58:59 Steffi LaZerte (she/her): Reacted to "Go back in time Hadl..." with 😂
01:00:20 Olivier Leroy: This will look better as prettify json
01:01:03 Derek Sollberger (he/him): (about `pluck`) Other programming languages, such as LISP, 'pop' elements out of an array instead of viewing elements
01:03:24 Steffi LaZerte (she/her): Reacted to "(about `pluck`) Othe..." with 👍🏻
01:03:37 Olivier Leroy: Reacted to "(about `pluck`) Othe..." with 👍
01:05:47 Derek Sollberger (he/him): Thank you! I am still new to functional programming in R, and this was very helpful :-)
01:05:52 Jeffrey Stevens: Great job, Jo! This was very informative!
01:06:01 Steffi LaZerte (she/her): Super great thanks
01:06:02 Steffi LaZerte (she/her): !
01:06:10 Steffi LaZerte (she/her): wonderful discussions!
01:06:12 Olivier Leroy: End