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fits a quadratic model to the gas concentration over time

Usage

flux_fitting_quadratic(conc_df_cut, conc_df, f_conc, f_start, f_fluxid, t_zero)

Arguments

conc_df_cut

dataframe of gas concentration over time, cut

conc_df

dataframe of gas concentration over time

f_conc

column with gas concentration

f_start

column with datetime when the measurement started

f_fluxid

column with ID of each flux

t_zero

time at which the slope should be calculated

Value

a df with the modeled gas concentration, slope, intercept, std error, r square and p value of the quadratic model