How to calculate the derivatives at each data point?
Hi Konstantinos Not exactly derivative but
diff(df[,2])
[1] -0.01 -0.01 -0.01 -0.01 0.00 0.01 -0.02 -0.03 -0.02 May be enaough for you. Cheers Petr
-----Original Message----- From: R-help <r-help-bounces at r-project.org> On Behalf Of konstantinos christodoulou Sent: Tuesday, January 31, 2023 10:16 AM To: r-help mailing list <r-help at r-project.org> Subject: [R] How to calculate the derivatives at each data point? Hi everyone, I have a vector with atmospheric measurements (x-axis) that is obtained/calculated at different altitudes (y-axis). The altitude is
uniformly
distributed every 7 meters. For example my dataframe is: df <- dataframe( *altitude* = c(1005, 1012, 1019, 1026, 1033, 1040, 1047, 1054, 1061,
1068),
*atm_values* = c(1.41, 1.40, 1.39, 1.38, 1.37, 1.37, 1.38, 1.36, 1.33,
1.31)
) How can I find the derivatives of the atmospheric measurements at each altitude? I look forward to hearing from you! Thanks, Kostas [[alternative HTML version deleted]]
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