The data to be visualized is from an experiment (T1-T8 represents different sections of the brain) and is as follows:

```
[[Block1]]
sum
[T1,] 6
[T2,] 6
[T3,] 4
[T4,] 5
[T5,] 8
[T6,] 9
[T7,] 8
[T8,] 6
[[Block2]]
sum
[T1,] 3
[T2,] 3
[T3,] 4
[T4,] 5
[T5,] 4
[T6,] 2
[T7,] 1
[T8,] 5
[[Block3]]
sum
[T1,] 3
[T2,] 3
[T3,] 4
[T4,] 2
[T5,] 4
[T6,] 8
[T7,] 3
[T8,] 1
[[Block4]]
sum
[T1,] 6
[T2,] 5
[T3,] 4
[T4,] 3
[T5,] 9
[T6,] 8
[T7,] 2
[T8,] 6
[[Block5]]
sum
[T1,] 8
[T2,] 3
[T3,] 4
[T4,] 5
[T5,] 7
[T6,] 6
[T7,] 2
[T8,] 2
[[Block6]]
sum
[T1,] 10
[T2,] 9
[T3,] 6
[T4,] 8
[T5,] 9
[T6,] 4
[T7,] 6
[T8,] 7
```

and so on.. For more than 100 blocks..

I would like to visualize the data in the following way to see the overall value in each region for very block..

For one block I get a line plot as shown below:

But it is tedious to visualize the same for 100 blocks.. What would be the best method to view it as a single plot using R..I tried doing it with heat maps but I would rather visualize them as a graph..

In the end it should be something like ( I have a rough figure of it).. Iam not sure how to do this in R for several blocks in a single plot or some other better way to visualize it:

Edit your question to a better title plus check facet_grid of ggplot!!

Cross-posted on stackoverflow, where several good answers have been offered. http://stackoverflow.com/questions/17280468/data-visualization-in-r