09.qmd (7119B)
1 --- 2 title: Cohort 9 3 --- 4 5 {{< video https://www.youtube.com/embed/9LO7hZVB6qY >}} 6 7 <details> 8 9 <summary>Meeting chat log</summary> 10 ``` 11 00:03:07 Olivier Leroy: Vintage dessert recipe 12 00:04:46 Olivier Leroy: https://tenmorebites.com/2015/09/26/skunk/ 13 00:07:34 Olivier Leroy: https://en.wikipedia.org/wiki/Ambrosia_(fruit_salad) 14 00:10:37 Olivier Leroy: start 15 00:12:27 Olivier Leroy: In my mind a list is a recursive vector 16 00:13:41 Steffi LaZerte (she/her): "Vectors come in two flavours: atomic vectors and lists" Chp 3 Introduction 17 00:13:49 Olivier Leroy: Reacted to ""Vectors come in two..." with 👍 18 00:13:55 Gabby Palomo Munoz: Reacted to ""Vectors come in two..." with 💯 19 00:14:32 Gabby Palomo Munoz: There's also map_dfr or something? I think it's deprecated but it's still there... right? 20 00:14:58 Jeffrey Stevens: Replying to "There's also map_dfr..." 21 22 I think it is superceded rather than deprecated. 23 00:15:19 Gabby Palomo Munoz: Replying to "There's also map_dfr..." 24 25 @Jeffrey Stevens what's the difference? 26 00:15:44 Jeffrey Stevens: Replying to "There's also map_dfr..." 27 28 Deprecated will eventually go away. Superceded is maintained but there is a betterr way to do it. 29 00:15:46 Steffi LaZerte (she/her): Replying to "There's also map_dfr..." 30 31 Yes, but as you said, not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 😅 32 00:15:59 Gabby Palomo Munoz: Reacted to "Deprecated will even..." with 😍 33 00:16:18 Derek Sollberger (he/him): Reacted to "Deprecated will even..." with 😍 34 00:16:58 Gabby Palomo Munoz: Reacted to "Yes, but as you said..." with 👍🏻 35 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 😂 36 00:18:06 Olivier Leroy: Tilda also 37 00:18:24 Jeffrey Stevens: Reacted to "I was so happy to le..." with ➕ 38 00:18:34 Derek Sollberger (he/him): Reacted to "I was so happy to le..." with ➕ 39 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) 40 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 41 00:20:43 Olivier Leroy: I used that anonymous function a lot” (length(unique(x))) 42 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 43 00:22:38 Olivier Leroy: Reacted to "I really like the ne..." with 👍 44 00:22:47 Gabby Palomo Munoz: Replying to "I really like the ne..." 45 46 All of this is so confusing to me because is it function(x), ~, or \(x) 47 00:22:55 Gabby Palomo Munoz: Replying to "I really like the ne..." 48 49 Too many ways to say the same thing. I get confused. 50 00:23:04 Derek Sollberger (he/him): Reacted to "All of this is so co..." with 👍 51 00:23:34 Steffi LaZerte (she/her): Replying to "I really like the ne..." 52 53 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. 54 00:25:06 Jeffrey Stevens: I was very happy to see the explanation of . vs .x vs ..1 55 00:25:25 Gabby Palomo Munoz: Replying to "I was very happy to ..." 56 57 They just lost me with ..1 58 00:25:30 Olivier Leroy: Reacted to "I was very happy to ..." with 👍 59 00:25:59 Olivier Leroy: Here is “.” Is the place holder ? 60 00:26:02 Jeffrey Stevens: Replying to "I was very happy to ..." 61 62 . is for one argument 63 .x and .y are for two arguments 64 ..1, ..2, ..3 etc are for more arguments 65 00:26:03 Olivier Leroy: unsure 66 00:26:09 Steffi LaZerte (she/her): Replying to "I was very happy to ..." 67 68 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. 69 00:26:25 Steffi LaZerte (she/her): Replying to "I was very happy to ..." 70 71 ..1, ..2, ..., ..n 72 00:27:09 Steffi LaZerte (she/her): Replying to "Here is “.” Is the p..." 73 74 . is the argument 😅 75 00:27:51 Olivier Leroy: Replying to "Here is “.” Is the p..." 76 77 Ouch 78 00:28:48 Olivier Leroy: Good trial/error! 79 00:28:52 Steffi LaZerte (she/her): Replying to "Here is “.” Is the p..." 80 81 Which is why we shouldn't use it... So confusing! 82 00:28:58 Jeffrey Stevens: Reacted to "Good trial/error!" with ➕ 83 00:29:02 Steffi LaZerte (she/her): Reacted to "Good trial/error!" with ➕ 84 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. 85 00:33:27 Olivier Leroy: One quick point purrr::map is diff than base::Map 86 00:33:45 Steffi LaZerte (she/her): Reacted to "One quick point purr..." with 👍🏻 87 00:36:14 Olivier Leroy: powering 88 00:37:25 Olivier Leroy: I did not about this one and will prob use it 89 00:38:43 Steffi LaZerte (she/her): There is the furrr package which impliments parallized purrr functions 90 00:41:33 Steffi LaZerte (she/her): Messages prove that it worked 😉 91 00:43:36 Olivier Leroy: Useful in simulation (sadly I am not doing much of that now ..) 92 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 🤯 93 00:44:20 Olivier Leroy: Reacted to "I saw this usage of ..." with 👍 94 00:44:26 Olivier Leroy: Replying to "I saw this usage of ..." 95 96 Still blew mine 97 00:44:32 Steffi LaZerte (she/her): Reacted to "Still blew mine" with 😂 98 00:48:22 Steffi LaZerte (she/her): Another function that I can totally see me using that I had no idea about!!! So exciting 😁 99 00:52:44 Olivier Leroy: I will be so lost between decimal . and .. (zoom is also lost and want to capitalize after .) 100 00:53:03 Steffi LaZerte (she/her): ggplot(mtcars, aes(hp, mpg)) + 101 reduce2(c(8,4,2), ...) 102 00:53:41 Derek Sollberger (he/him): aside: Maelle Salmon blog post with an example of `reduce` 103 https://masalmon.eu/2023/07/26/reduce/ 104 00:53:48 Olivier Leroy: Reacted to "aside: Maelle Salmon..." with 👍 105 00:56:24 Olivier Leroy: Go back in time Hadley! 106 00:56:25 Steffi LaZerte (she/her): Reacted to "aside: Maelle Salmon..." with 👍🏻 107 00:56:30 Jeffrey Stevens: Reacted to "Go back in time Hadl..." with ➕ 108 00:58:59 Steffi LaZerte (she/her): Reacted to "Go back in time Hadl..." with 😂 109 01:00:20 Olivier Leroy: This will look better as prettify json 110 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 111 01:03:24 Steffi LaZerte (she/her): Reacted to "(about `pluck`) Othe..." with 👍🏻 112 01:03:37 Olivier Leroy: Reacted to "(about `pluck`) Othe..." with 👍 113 01:05:47 Derek Sollberger (he/him): Thank you! I am still new to functional programming in R, and this was very helpful :-) 114 01:05:52 Jeffrey Stevens: Great job, Jo! This was very informative! 115 01:06:01 Steffi LaZerte (she/her): Super great thanks 116 01:06:02 Steffi LaZerte (she/her): ! 117 01:06:10 Steffi LaZerte (she/her): wonderful discussions! 118 01:06:12 Olivier Leroy: End 119 ``` 120 </details>