<｜begin▁of▁sentence｜>### Instruction:
As a mathematician, you may need to reset a running mean calculator to clear the past numbers and start the calculation from the beginning. This could be particularly relevant when simulating data for a statistical model or when analyzing trends over different time periods.
### Response:
from igraph.statistics import RunningMean

# Create an instance of RunningMean
running_mean = RunningMean()

# Add some values
running_mean.add(10)
running_mean.add(20)
running_mean.add(30)

# Clear the running mean calculator
running_mean.clear()

# The running mean should be reset by now
print(running_mean.result)
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