# Is there a quantitative definition of a Quiet, Moderate or Accelerate market conditions?

i know the StdDev price technical indicator which is the standard deviation but this one has an absolute value.

The market conditions are:

• Quiet: lower oscillation of price around a constant value.
• Moderate :variation of price is constant.
• Accelerate : variation of price is non constant (accelerated).

So Is there any other quantitative definition of a Quiet, Moderate or Accelerate market conditions with a comprehensive scale?