[交流] 求助：非线性拟合方程的参数置信区间绘图？？？？ 已有2人参与

图1是我获得的单位COD甲烷累积产量，我想采用Aquasim 软件拟合方程（1），求出khyd [day−1] 和 fd [mL CH4 g COD−1]（就像表1红色箭头标注的），然后，绘制出图Fig 5的图，该图是我重点想画出来的（如何将几组数据的参数及区间同时表示在同一张图上，如Fig 5）！（表1和Fig5是其它参考文献的数据）。 请您帮忙看看如何绘制，万分感激！    图1 First-order hydrolysis rate, khyd [day−1] and degradability, fd [mL CH4 g COD−1] were estimated by fitting the data to the Eq. (1). Parameter uncertainty levels were assessed through parameter uncertainty analysis. Y_(CH_4 )=V_(CH_4 )/COD=f_d (1-exp⁡(-k_hyd t))     (1) Where YCH4 is the specific methane yield at a given time [mL CH4 g COD-1], VCH4 is the volume of methane produced [mL CH4], COD is the mass of chemical oxygen demand present in the BMP reactor [g COD] and t is the time since the setup of the BMP [days]. 2.jpg 3.jpg 2.jpg 1.jpg

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