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How to find local maximas/minimas in-between points that crossed 0 on the x-axis?
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Aug 2016 Posts 1 Default How to find local maximas/minimas in-between points that crossed 0 on the x-axis? Apologies if the post title was unclear, here's what I meant. - I have plotted a line graph with only 1 line. - This line ranges between -2% and 1.5%, it looks like a stock graph with ups and downs. - My objective here is to find the maximum or minimum in-between two points that have crossed 0 on the x-axis. The two points that have crossed the x-axis must have a maximum or minimum inside that is ABOVE 1% or BELOW -1%. Further explanation... This line I plotted here has data that goes up and down in-between -2% and 1.5%. Sometimes the line will fluctuate very slightly between -1% and 1%. I'm trying to find all the peaks (maximums) and abysses (minimums) that are over 1% or under -1%, with the crucial condition that the two points surrounding the peaks or abysses must have crossed 0 on the x-axis. If you want clarification, please do not hesitate! Big thanks. |
#2
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Attach your spreadsheet. That will help.
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excel charts |
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