Hi,

Let us say that we have some data frames named S1,S2,S3... that I want to join independently by column names to dataframe X. This is how they look like:

```
S1 <- data.frame(
values = c (1:5),
numbers = c(11:15))
S1
S2 <- data.frame(
values = c (1:5),
numbers = c(11:15))
S2
S3 <- data.frame(
values = c (1:5),
numbers = c(16:20))
S3
```

```
#Dataframe X
```

```
X <- data.frame(
values = c (26:30),
numbers = c(501:505))
X
S1
S2
S3
X
```

Using rbind, it is really easy to merge/join them according to column names. As below:

```
S1_X<- rbind(S1,X)
S1_X
S2_X<- rbind(S2,X)
S2_X
S3_X<- rbind(S3,X)
S3_X
```

Now the problem is that I have 500 plus data frames (S1,S2,S3,S4,S5.....S500) that I want to join to dataframe "X" by any function. For example rbind. Is it possible to use some loop/function for that.

What I have best tried is create a list (nested list of dataframes) that I can later split into individual dataframes:

` output = lapply(list(S1=S1,S2=S2,S3=S3),rbind,X)`

The output is what I expected. So it works The only problem is, how do I specify S1 to S500?

Thank you in advance!