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Showing results for tags 'preprocessLight'.
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Hi, I am trying to use TwGeos::preprocessLight() to identify twilights in light data collected by Lotek LAT280 tags. The below is the log of the "Light Intensity" variable. This approach doesn't seem to give great definition between the dark and light sections and makes picking a threshold challenging. Does anyone have any suggestions for a transformation, a threshold, or an alternative approach with the data from this tag? Thanks! -
Hello everyone, How do you delete twilights using the preprocessLight function in BAStag? The help file indicates that at stage four you should be able to use the 'd' to toggle deletions. I have found that this changes the color of the sunrise or sunset from orange or blue to gray, but when I show the results of my defined twilights against the raw data that they appear again. I'm certain it's an easy fix, I'm just unsure how to do it. Thanks for your help! Amélie -
I'm cleaning up my twilights and the 4th step in "preprocessLight" has frozen on me a couple times after about 30-40 minutes of work. It does save up to that point though. According to the help file I can update a previous call. It is not clear to me how to run this though. Info from help file: The results of a previous call of \code{preprocessLight} can be updated by providing the dataframe generated by the previous call as the \code{twilights} argument, and using the \code{stage} argument to determine to point from which to restart the process. Are there examples of how to run this? Thank you.
