cpos {cwhmisc} | R Documentation |
cpos
finds the first position of a substring
substring.location
returns a list with starting and ending
positions, works only with a single string.
cpos(str,sub,start=1) substring.location(str, sub, restrict)
str |
string (1-dim) |
sub |
string (1-dim) |
start |
integer |
restrict |
vector of lower and upper index the search should be restricted to |
number, if found, NA otherwise. list(first,last)
Christian W. Hoffmann <c-w.hoffmann@sunrise.ch>
http://www.wsl.ch/personal_homepages/hoffmann/index_EN
cpos(" Baldrian","a",5) # 8 cpos("Baldrian","B",15) # NA substring.location("In,theese,housees,there,are,rats","ees") #$first [1] 6 15 #$last [1] 8 17