[R] graph label greek symbol failure

[e-letter]

On 17/08/2009, Michael Knudsen <micknudsen at gmail.com> wrote:
> On Mon, Aug 17, 2009 at 12:51 PM, e-letter <inpost at gmail.com> wrote:
>
>> I have tried to add the delta (δ) symbol to the y axis label and the
>> result is &D, using the command:
>>
>> ...ylab="δt"...
>
> Try ylab = expression(delta*t) instead.
>
This does not work, the result is
expression(delta*t)