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@datascience@genomic.social
2024-03-01 11:00:01

Im using case_when() quite a lot, case_match() is new to me: #rstats

A general vectorised switch() — case_match
This function allows you to vectorise multiple switch() statements. Each case is evaluated sequentially and the first match for each element determines the corresponding value in the output vector. If no cases match, the .default is used. case_match() is an R equivalent of the SQL "simple" CASE WHEN statement. Connection to case_when() While case_when() uses logical expressions on the left-hand side of the formula, case_match() uses values to match against .x with. The following two statement…

@datascience@genomic.social
2024-03-01 11:00:01

Im using case_when() quite a lot, case_match() is new to me: #rstats

A general vectorised switch() — case_match
This function allows you to vectorise multiple switch() statements. Each case is evaluated sequentially and the first match for each element determines the corresponding value in the output vector. If no cases match, the .default is used. case_match() is an R equivalent of the SQL "simple" CASE WHEN statement. Connection to case_when() While case_when() uses logical expressions on the left-hand side of the formula, case_match() uses values to match against .x with. The following two statement…

@UP8@mastodon.social
2024-02-28 19:31:36

🎈 ‘It’s a net zero cargo solution’: could Victoria become home to an airship renaissance?
theguardian.com/australia-news

‘It’s a net zero cargo solution’: could Victoria become home to an airship renaissance?
French startup hoping to develop Ballarat manufacturing hub says dirigibles will transport freight too cumbersome for road or aid to inaccessible locations

@benb@osintua.eu
2024-03-22 00:07:23

'Lives are falling apart:' Kyiv residents shook by another mass missile attack: benborges.xyz/2024/03/22/lives

'Lives are falling apart:' Kyiv residents shook by another mass missile attack
KYIV – Viktor Syrotyn was sleeping in his apartment near central Kyiv when the first powerful explosion rang out. He immediately woke up, ran into his children’s room, and covered his daughter with hi Source : kyivindependent.

@cosmos4u@scicomm.xyz
2024-02-27 22:35:46

"Most of the customers flying on #Odysseus are getting the data they paid for," Intuitive Machines told a visitor today: arstechnica.com/space/2024/02/ - "Odysseus flew all the way to the Moon on its very first time out and made a soft landing. It has been phoning home ever since, sending a rich stream of data." Oh, and contrary to earlier reports NASA's Navigation Doppler Lidar played *no* role in the landing as in the end its data could not be processed in real-time by Nova-C's computer.

@arXiv_csIT_bot@mastoxiv.page
2024-04-01 07:17:03

Recovery Sets of Subspaces from a Simplex Code
Yeow Meng Chee, Tuvi Etzion, Han Mao Kiah, Hui Zhang
arxiv.org/abs/2403.20170

Recovery Sets of Subspaces from a Simplex Code
Recovery sets for vectors and subspaces are important in the construction of distributed storage system codes. These concepts are also interesting in their own right. In this paper, we consider the following very basic recovery question: what is the maximum number of possible pairwise disjoint recovery sets for each recovered element? The recovered elements in this work are d-dimensional subspaces of a $k$-dimensional vector space over GF(q). Each server stores one representative for each disti…

@arXiv_mathGT_bot@mastoxiv.page
2024-04-30 08:40:52

This arxiv.org/abs/2212.02424 has been replaced.
link: scholar.google.com/scholar?q=a

Multiparameter Discrete Morse Theory
The main objective of this paper is to extend Morse-Forman theory to vector-valued functions. This is mostly motivated by the need to develop new tools and methods to compute multiparameter persistence. To generalize the theory, in addition to adapting the main definitions and results of Forman to this vectorial setting, we use concepts of combinatorial topological dynamics studied in recent years. This approach proves to be successful in the following ways. First, we establish a result which i…

@xtaran@chaos.social
2024-04-28 23:41:09

#30DaysOfBiking, Day 28 = #SPEZI24, Day 2: Rode my KMX recumbent trike to #SPEZI (2x 4km) and rode each of the following bikes at least once through the 750m test course: A

"Big Brompty", a black Brompton with enlarged frame, forh and chainstay to accommodate very narrow 24" road wheels. Was for sale from private.
"Sofie" a red, front wheel driven short wheelbase recumbent with an aerodynamic wooden box in the back which also provides the seat. It has lettering on the box that says "Sofie made by holzwurm 2024". A visitor's bicycle.
Zarabike, an Italian delta layout recumbent trike which can tilt when riding through curves. Shown tilted to the left. A product shown at the fair.
"Ride your Bed" (RyB, campcycle.ch), an oval-ish 50kg folding caravan with a canvas top for use with e-bikes. A product shown at the fair.

Home - 3X3
FREE YOUR BIKE. Für 3X3 bedeutet das, eine wartungsfreie Nabenschaltung zu bauen, die bei jeder Witterung immer perfekt funktioniert.

@memeorandum@universeodon.com
2024-04-19 20:35:44

Biden's Title IX rules are a victory for powerful teachers unions fueling Dem campaigns (Thomas Catenacci/Fox News)
foxnews.com/politics/bidens-ti
memeorandum.com/240419/p46#a24

@benb@osintua.eu
2024-03-22 00:07:23

'Lives are falling apart:' Kyiv residents shook by another mass missile attack: benborges.xyz/2024/03/22/lives

'Lives are falling apart:' Kyiv residents shook by another mass missile attack
KYIV – Viktor Syrotyn was sleeping in his apartment near central Kyiv when the first powerful explosion rang out. He immediately woke up, ran into his children’s room, and covered his daughter with hi Source : kyivindependent.