Question: I have the following problem with excel. I want to increase a variable by one without using a function. So i mean without writing a "=" before my expression. Example:

B1.c\_O2\_L\_y.Value(i)  

B1.c\_O2\_L\_y.Value(1)  

B1.c\_O2\_L\_y.Value(2)  

B1.c\_O2\_L\_y.Value(3)  

B1.c\_O2\_L\_y.Value(4)  

B1.c\_O2\_L\_y.Value(5)  

B1.c\_O2\_L\_y.Value(6)  

B1.c\_O2\_L\_y.Value(7)  

B1.c\_O2\_L\_y.Value(8)  

B1.c\_O2\_L\_y.Value(9)  

B1.c\_O2\_L\_y.Value(10)  

B1.c\_O2\_L\_y.Value(11)  

B1.c\_O2\_L\_y.Value(12)  

.......

I must do that for many expressions and for i > 500. So i can't do that by hand. I would be thankful for any advice.

Answer: 
How do you want to combine `dat1` and `dat2`? By rows or columns? I'd take a look at the help pages for `rbind()` (row bind) , `cbind()` (column bind), or`c()` which combines arguments to form a vector.
Let me start by a comment.

In order to create a sequence of number on can use the following syntax:

```
x <- seq(from=, to=, by=)

```

A shorthand for, e.g., `x <- seq(from=1, to=10, by=1)` is simply `1:10`. So, your notation is a little bit weird...

On the other hand, you can combine two or more vectors using the `c()` function. Let us say, for example, that `a <- c(1, 2)` and `b <- c(3, 4)`. Then `c <- c(a, b)` is the vector `(1, 2, 3, 4)`. 

There exist similar functions to combine data sets: `rbind()` and `cbind()`.