Search notes:

R function: colSums

a <- data.frame (
  foo = c(  15 ,    9 ,   13 ,   12 ,   11 ,   14 ,   15 ,   11 ,    9 ,   10 ,   12 ,   13 ),
  bar = c(  11 ,   15 ,   10 ,    9 ,    8 ,   12 ,   14 ,   13 ,   15 ,   16 ,   12 ,   11 ),
  baz = c(   8 ,   10 ,    9 ,   10 ,   11 ,   13 ,   15 ,   14 ,   14 ,   13 ,   13 ,   10 )
)


row.names(a) <- c('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec')

colSums(a)
# 
# foo bar baz
# 144 146 140

Github repository about-r, path: /functions/colSums.R

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...', 1788540012, '216.73.217.21', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/development/languages/R/functions/colSums(54): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78

R function: colSums

See also