Search for tag: "subscripts"

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Vectorized Computations.mp4 duration 9 minutes 8 seconds Vectorized Computations.mp4 Vectorized Computations.mp4	Vectorized Computations.mp4 In R, loops are often not the most efficient way to do repetitive calculations. Rather than doing the calculations for each value of a variable it is much more efficient to organize the values of… literature educational equipment course books computer languages programming books learning materials ifelse() language programming languages for loop software nonfiction literature system.time() actors in theatre film and tv computers loops telecommunications equipment subscripts asia From Daniel Hall 65 plays 0 Copyright I created all of this content
Sorting in R.mp4 duration 8 minutes 0 seconds Sorting in R.mp4 Sorting in R.mp4	Sorting in R.mp4 The sort() function will sort a vector in R in either ascending or descending order. But a more powerful and flexible technique is to sort data by using the order() function to generate subscripts… subscripts mathematical sciences educational assessment and evaluation education and upbringing sort() order() watering can population forecasts examinations studying life expectancy students national health quiz schools mathematics From Daniel Hall 247 plays 0 Copyright I created all of this content
Subscripts - Part 3 (Lists).mp4 duration 3 minutes 29 seconds Subscripts - Part 3 (Lists).mp4 Subscripts - Part 3 (Lists).mp4	Subscripts - Part 3 (Lists).mp4 In this video we continue to discuss subscripts, this time concentrating on lists. Lists have elements that may be of different modes and classes. E.g., a list may contain three elements: a character… list() double-brackets subscripts From Daniel Hall 68 plays 0 Copyright I created all of this content
Subscripts - Part 2 (Matrices & Arrays).mp4 duration 9 minutes 31 seconds Subscripts - Part 2 (Matrices & Arrays).mp4 Subscripts - Part 2 (Matrices & Arrays).mp4	Subscripts - Part 2 (Matrices & Arrays).mp4 In this video we continue to discuss subscripts, this time concentrating on matrices and arrays. Each dimension of these structures may be subscripted to return a sub-matrix or sub-array of the… dog classes (education) subscripts lower.tri() pet animals students actors in theatre film and tv period of study tour of france (tour de france) domestic animals and pets comparison (mathematics) drop= option studying data analysis diag() quiz upper.tri() triangle (geometry) canine multiplication From Daniel Hall 168 plays 0 Copyright I created all of this content
Subscripts - Part 1 (Vectors).mp4 duration 7 minutes 29 seconds Subscripts - Part 1 (Vectors).mp4 Subscripts - Part 1 (Vectors).mp4	Subscripts - Part 1 (Vectors).mp4 R has a very powerful subscripting system and it is important to learn how to use it effectively. In this video we show several different ways in which vectors may be subscripted to achieve various… data management subscripts logical operators nchar() data structures substr() From Daniel Hall 83 plays 0 Copyright I created all of this content