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...z result previous row-z .... 0) If I plot this is a linear decreasing line I want to plot an upper line wich is 10% higher tan resultc on the first values and then decreasing so that last value will be 0.05. the same in the lower, a line which values are at the beggining a 10% lower and smoothly dreasing values till the last will be 5% lower. Is it posible to make thins bands exponencially with a code? 2017-06-01 20:20 GMT+02:00 Pedro p?ramo <percentil101 at gmail.com>: > Hi all > > I want to add a band of fluctuaci?n (exponential decreading) to a linear > deacrecing values...

Hi all I want to add a band of fluctuaci?n (exponential decreading) to a linear deacrecing values Imagine: I have a matrix like c(10,9,8,7,6,5,4,3,2,1) The thing is I want two new lines so that the m?ximum value of the new colum on the m?ximum is from 10% to 5% higher and the same lower for the m?nimum the final two matix will be something like c(10+0.10*10,9+0.089*9,8+0.075*8.....,1+0.05*1)