Description Usage Arguments Details Value
I prefer using the fraction for calculations and then converting to composition at the end
1 | f_val_calc_delta_proportion(obs_12C, obs_13C, R_std)
|
obs_12C |
xxxPARAMxxx |
obs_13C |
xxxPARAMxxx |
R_std |
xxxPARAMxxx |
First calculates R_obs with f_val_calc_isotope_ratio
delta_proportion <- (R_obs / R_std) - 1
this quantity is not in per mil
delta_proportion xxxRETURNxxx
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