I have a chart very similar to this.
What i need to do is while x-axis remain same position, i need to reverse(descending order values) y-axis values.
eg: Power should be starting from 160,140,120,100...so on.. and x-axis in same position starting with 0.
important : I must not take x-axis to top as it happens when 'reverse=true'
Your help is highly appreciated.