Gundala Viswanath <gundalav <at> gmail.com> writes: > ...In which I want to plot accumulative value of dat1 with respect > to x-axis. Also plot it together with dat2. > > > #x-axis dat1 dat2 > -10 0.0140149 0.0140146 > -9 0.00890835 0.00891768 > -8 0.00672276 0.00672488 See for example http://markmail.org/message/wj5zzjmmgglidk37 Dieter