Column names of a data.frame separated with comma

Question

I want to get column names of a `data.frame` separated with `comma (,)`. I remembered I got this result in past but now forgot the command. ``` df<- data.frame(x=1:10, y=11:20) names(df) ``` Output ``` "x" "y" ``` Desired Output ``` c("x", "y") ```

Accepted Answer

The easiest way to get exactly what it sounds like you're asking for (without knowing exactly how you plan to use this information) is to use `dput`:

```
dput(names(df))
# c("x", "y")
```

By extension, without fussing with `paste`:

```
x <- capture.output(dput(names(df)))
x
# [1] "c(\"x\", \"y\")"
cat(x)
# c("x", "y")
```

Although @Jilber deleted his answer, you can use `shQuote` to go from what he had started with to the output of "x" above:

```
paste("c(", paste(shQuote(names(df)), collapse = ", "), ")", sep = "")
# [1] "c(\"x\", \"y\")"
```

Column names of a data.frame separated with comma

Solution

Problem