Search notes:
R function: dim
#
# S.a. ../examples/having_a_look_at_data.R
#
dataFrame <- data.frame (
col_1 = c("Foo", "Bar", "Baz"),
col_2 = c( 11 , 22 , 33 ))
dim(dataFrame)
# [1] 3 2
#
# dim can also be used to set or chagne the dimension:
a <- 1:50
dim(a) <- c(10, 5)
a
#
# [,1] [,2] [,3] [,4] [,5]
# [1,] 1 11 21 31 41
# [2,] 2 12 22 32 42
# [3,] 3 13 23 33 43
# [4,] 4 14 24 34 44
# [5,] 5 15 25 35 45
# [6,] 6 16 26 36 46
# [7,] 7 17 27 37 47
# [8,] 8 18 28 38 48
# [9,] 9 19 29 39 49
# [10,] 10 20 30 40 50
dim() applied on a vector
v <- c( 1, 1, 2, 3, 5, 8 );
dim(v);
#
# NULL
Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 8 attempt to write a readonly database in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php:78
Stack trace:
#0 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(78): PDOStatement->execute(Array)
#1 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(30): insert_webrequest_('/notes/developm...', 1743241458, '18.218.189.36', 'Mozilla/5.0 App...', NULL)
#2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/development/languages/R/functions/dim(87): insert_webrequest()
#3 {main}
thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78