Post by Robin on Jul 4, 2018 11:15:08 GMT 8
Hi all,
Here's an error that has been pestering me for some time:
Which essentially gets thrown when making calls to functions like profitLikeModel.
It turns out that is has nothing to do with the stretchscale and everything to do with the pixels of the image that your segmentation region covers. The issue arises if you segmentation map covers a region of the image that contains NaNs (like a frame edge for example). Normal usage of ProFit wouldn't cause this to happen but if one were to transfer over a set segmentation map between different bands, it's likely that the frame edges will not match (e.g. in SDSS).
A quick and easy fix to this is to run some cleanup lines after loading/generating a segmentation map, you can use the following lines to repair the segmentation and the objects mask:
For example:
![]()
Your segmentation stats should be clear of any NaN issues as ProFound is able to handle NaNs.
~ R.
Here's an error that has been pestering me for some time:
Error in if (stretchscale == "auto") { :
missing value where TRUE/FALSE needed
Calls: profitLikeModel -> profitMakePlots -> magimage -> magmap
Execution halted
Which essentially gets thrown when making calls to functions like profitLikeModel.
It turns out that is has nothing to do with the stretchscale and everything to do with the pixels of the image that your segmentation region covers. The issue arises if you segmentation map covers a region of the image that contains NaNs (like a frame edge for example). Normal usage of ProFit wouldn't cause this to happen but if one were to transfer over a set segmentation map between different bands, it's likely that the frame edges will not match (e.g. in SDSS).
A quick and easy fix to this is to run some cleanup lines after loading/generating a segmentation map, you can use the following lines to repair the segmentation and the objects mask:
segmentation$segim[is.na(image) & segmentation$segim] = 0
segmentation$objects[is.na(image) & segmentation$objects] = 0
For example:
Your segmentation stats should be clear of any NaN issues as ProFound is able to handle NaNs.
~ R.
