Trend line in scatter plots

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Dennis_Zx7r
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Trend line in scatter plots

Post by Dennis_Zx7r »

As an experiment, in this log, MAT correction was deliberately deactivated.

In MLV, plotting MAT vs AFR deviation looks like this. Not of much help when trying to spot a trend in the case of many data points.
Image

However, when applying the same filters (manually) in Excel and using the linear trend line, it's pretty obvious. Not of much use for taking a quick look though, as this takes some time.
Image

I think it would add great value for log analysis to have some sort of trend line in the scatter plots.
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LT401Vette
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Re: Trend line in scatter plots

Post by LT401Vette »

Yes, that would be helpful.
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Rick Finsta
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Re: Trend line in scatter plots

Post by Rick Finsta »

If you're doing that, please add an equation and R-squared value display option as well!
lutorm
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Re: Trend line in scatter plots

Post by lutorm »

This might be nice, although I would fear the fit getting drawn off by outliers unless you have a very clean set of data. I suspect it will need to include automatic rejection of high-sigma outliers to be usefully robust, at least on the scatter plots I've been looking at.
Djovani_jr
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Re: Trend line in scatter plots

Post by Djovani_jr »

Tell me please how to add a trend line.

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