在 Excel 中对标准曲线进行插值
在纸上做是最简单的事情,但在 Excel 中却几乎不可能完成。
我需要在 Excel 中对标准曲线进行插值。
我有一条标准曲线,需要找到已知吸光度的未知浓度。
就像这样; http://class.fst.ohio-state.edu/fst601 /Lectures/spectt/Image161.gif
我的讲师不会给我们任何更多的提示,除了使用线性回归方程(我想我已经解决了,但无法计算)浓度)或使用点查找/选取选项(不知道这意味着什么)
如果有人可以帮助我解决这个问题,我将非常感激,我的全班同学也会如此!
Most simple thing to do on paper, but somehow near impossible to work out in Excel.
I need to interpolate off a standard curve in Excel.
I have a standard curve and need to find an unknown concentration of a known absorbance.
Just like this;
http://class.fst.ohio-state.edu/fst601/Lectures/spectt/Image161.gif
My lecturer would not give us any more hints than to either use the, linear regression equation (which i think i worked out but couldn't get it to calculate the concentration) or use the point finding/picking option (no idea what this could mean)
If anyone could help me out with this I would really appreciate it, and so would my whole class!
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在 Excel 中,您可以通过两种方式完成此操作:
方法 1:使用标准插值/外推公式。 (Bingle)
方法 2:将现有的任何数据点绘制为 xy(散点)图。右键单击图表中的数据线并选择“添加趋势线”。 Excel 将计算数据的最佳拟合线(使用线性回归)并将该线显示在现有数据的顶部。如果右键单击该趋势线,您可以调整其设置并显示其属性,包括用于绘制趋势线的方程。一旦有了这个方程,您就可以代入任何 x 值并得到相应的 y 值。
In excel, you can do it two ways:
Method 1: Use a standard interpolation/extrapolation formula. (Bingle)
Method 2: Plot any existing data points that you have as an x-y(scatter) plot. Right-click on the data line in the chart and choose 'Add trendline'. Excel will calculate a best-fit line for your data (using linear regression) and display the line over the top of your existing data. If you right-click on this trendline, you can adjust its settings and display properties of it, including the equation used to draw it. Once you have that equation, you can plug in any value of x and get the corresponding value of y.