r - Converting Dataframe to LIST -

i wish convert dataframe list. here's example dataframe:

colname   name    age    address 1         john    22     singapore 2         james   44     india 3         jessie  21     australia  

i convert list like:

name : john age: 22 address: singapore name : james age: 44 address india name : jessie age: 21 address: australia. 

so wish aggregate of column name , corresponding value of row in single r datatype.

as.list didn't work me.

you can use:

 apply(x, 1, function(r) paste(names(x), r, sep=":", collapse=" ")) 

where x data.frame

if not want first column in output, add appropriate [, -1] , [-1] respectively:

apply(x[, -1], 1, function(r) paste(names(x)[-1], r, sep=":", collapse=" "))  [1] "name:john age:22 address:singapore"   [2] "name:james age:44 address:india"      [3] "name:jessie age:21 address:australia" 

---

however, if goal json, can use rjson package:

library(rjson) apply(x[,-1], 1, tojson) 

which give appropriately quoted string:

cat( apply(x[,-1], 1, tojson) )  {"name":"john","age":"22","address":"singapore"}  {"name":"james","age":"44","address":"india"} {"name":"jessie","age":"21","address":"australia"}