如何将线性趋势线拟合到 Libre Office Calc 中的半对数散点图？

Question

我有下面的情节：

我想用线性趋势线拟合数据，这样我就可以在进一步的计算中使用斜率。但是，当我尝试拟合线性趋势线时，我得到了：

如果我符合幂趋势线，那么我会得到超过 0.999 的 R^2，但该趋势线对我来说毫无用处...有人知道完成此操作的正确方法吗？

编辑：这是 CSV 格式的数据

Iron in Copper,,,Cobalt in Copper,,,Nickel in Copper,,
T (oC),D (cm2/sec),1/T (1/K),T (oC),D (cm2/sec),1/T (1/K),T (oC),D (cm2/sec),1/T (1/K)
1074,5.65E-09,0.0007423078,1077,3.43E-09,0.0007406584,1076,1.98E-09,0.0007412074
974,1.11E-09,0.0008018282,983,7.64E-10,0.0007960833,980,3.57E-10,0.0007979891
895,2.86E-09,0.0008560544,904,1.77E-10,0.0008495094,900,7.87E-11,0.0008524059
830,7.80E-11,0.000906495,844,5.09E-11,0.0008951349,847,2.61E-11,0.0008927376
780,2.67E-11,0.0009495324,793,1.65E-11,0.0009379543,791,6.82E-12,0.0009397171
719,6.55E-12,0.0010079121,744,5.31E-12,0.0009831392,743,1.90E-12,0.0009841067
,,,701,1.76E-12,0.001026536,,,

Answer 1

嗯 - 有了这些值，我得到：

趋势线对我来说似乎不错？（抱歉，没有答案，但我无法将图表放入评论中......）

如何将线性趋势线拟合到 Libre Office Calc 中的半对数散点图？

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