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我有以下情节：如何拟合线性趋势线到Libre Office Calc中的半对数散点图？
，我想以适应线性趋势线的数据，所以可在进一步计算中使用的斜率。然而，当我尝试以适应线性趋势线，我得到这个： 
如果我适合功率趋势线，然后我得到了R^2过.999，但趋势线是没用的，我...是否任何人都知道完成这个的正确方法？
编辑：这里是CSV格式
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,,,
@tohuwawohu发布 – DrJPepper
您的y轴是对数坐标。所以肯定线性趋势线看起来像你看到它。 –