在VLOOKUP中使用间接函数发现MAX ABS时出现错误。

I am trying to set up a sheet that I can use as a template to sort data, find perticular values and create a chart. Everything is working fine for the maximum magnitude and average magnitude values I am looking for. I am running into an issue in the formula in the images attatched. Below is the full code.I am trying to set up a sheet that I can use as