Simulate a Wiener process with RandomFunction in Mathematica 8?

Questions
1

I wanted to simulate a Wiener process in Mathematica 8. I used the code provided here: RandomFunction—Wolfram Documentation
However, it didn’t work. I got the error message:

ListLinePlot::lpn: "RandomFunction[WienerProcess[],{0,10,0.1}] is not a list of numbers or pairs of numbers.

I’ve attached a screenshot of the same,

How do I resolved this issue?

2

Try this:

tData = RandomFunction[WienerProcess[], {0, 10, 0.1}];
ListLinePlot[tData, Filling -> Axis, AxesOrigin -> {0, 0}]

WienerProcess.png
WienerProcess.png455×287 7.01 KB

3

At the end of the documentation page it says:

Introduced in 2012 (9.0)

Note that all built-in function should show up as Black in the notebook. You can clearly see that RandomFunction and WienerProcess are blue in your screenshot, meaning that they are ‘unknown’ to the system.