rcoder mpdotbookgmailcom hi everyone im trying use acf function calculate autocorrelation column matrix trouble seem get function work extract data column separate matrix apply acf function column something like acfmatlagmax10naactionnapass would really like apply function mat mat matrix opposed vector function actually doesnt return acf coefficient instead plots data addition handling matrices multiple columns would anyone know coerce function output underlying data finally working matrix way specify many plots display function executes managed generate multiple plot experimenting titles suggested acf calculated adjacent columns matrix something puzzled thanks rcoder view message context httpwwwnabblecomusingacf2829formultiplecolumnstp18858672p18858672html sent r help mailing list archive nabblecom ______________________________________________ rhelprprojectorg mailing list httpsstatethzchmailmanlistinforhelp please read posting guide httpwwwrprojectorgpostingguidehtml provide commented minimal selfcontained reproducible code wed 06 aug 2008 131235 0700 r using acf multiple columns