las_check() with deep=TRUE double print the results

[Jean-Romain]

library(lidR)
#> Le chargement a nécessité le package : raster
#> Le chargement a nécessité le package : sp
LASfile <- system.file("extdata", "Megaplot.laz", package="lidR")
ctg = readLAScatalog(LASfile)

u = las_check(ctg, deep = T)
#> 
#> _______________________________
#> Checking the file: Megaplot.laz
#> _______________________________
#> 
#>  Checking the data
#>   - Checking coordinates... ✓
#>   - Checking coordinates type... ✓
#>   - Checking coordinates range... ✓
#>   - Checking coordinates quantization... ✓
#>   - Checking attributes type... ✓
#>   - Checking ReturnNumber validity... ✓
#>   - Checking NumberOfReturns validity... ✓
#>   - Checking ReturnNumber vs. NumberOfReturns... ✓
#>   - Checking RGB validity... ✓
#>   - Checking absence of NAs... ✓
#>   - Checking duplicated points... ✓
#>   - Checking degenerated ground points... ✓
#>   - Checking attribute population...
#>    🛈 'PointSourceID' attribute is not populated
#>    🛈 'EdgeOfFlightline' attribute is not populated
#>   - Checking gpstime incoherances ✓
#>   - Checking flag attributes... ✓
#>   - Checking user data attribute... ✓
#>  Checking the header
#>   - Checking header completeness... ✓
#>   - Checking scale factor validity... ✓
#>   - Checking point data format ID validity... ✓
#>   - Checking extra bytes attributes validity... ✓
#>   - Checking the bounding box validity... ✓
#>   - Checking coordinate reference sytem... ✓
#>  Checking header vs data adequacy
#>   - Checking attributes vs. point format... ✓
#>   - Checking header bbox vs. actual content... ✓
#>   - Checking header number of points vs. actual content... ✓
#>   - Checking header return number vs. actual content... ✓
#>  Checking preprocessing already done 
#>   - Checking ground classification... yes
#>   - Checking normalization... yes
#>   - Checking negative outliers... ✓
#>   - Checking flightline classification... no[1] "call"
#> 
#> _______________________________
#> Checking the file: Megaplot.laz
#> _______________________________
#> 
#>  Checking the data
#>   - Checking coordinates... ✓
#>   - Checking coordinates type... ✓
#>   - Checking coordinates range... ✓
#>   - Checking coordinates quantization... ✓
#>   - Checking attributes type... ✓
#>   - Checking ReturnNumber validity... ✓
#>   - Checking NumberOfReturns validity... ✓
#>   - Checking ReturnNumber vs. NumberOfReturns... ✓
#>   - Checking RGB validity... ✓
#>   - Checking absence of NAs... ✓
#>   - Checking duplicated points... ✓
#>   - Checking degenerated ground points... ✓
#>   - Checking attribute population...
#>    🛈 'PointSourceID' attribute is not populated
#>    🛈 'EdgeOfFlightline' attribute is not populated
#>   - Checking gpstime incoherances ✓
#>   - Checking flag attributes... ✓
#>   - Checking user data attribute... ✓
#>  Checking the header
#>   - Checking header completeness... ✓
#>   - Checking scale factor validity... ✓
#>   - Checking point data format ID validity... ✓
#>   - Checking extra bytes attributes validity... ✓
#>   - Checking the bounding box validity... ✓
#>   - Checking coordinate reference sytem... ✓
#>  Checking header vs data adequacy
#>   - Checking attributes vs. point format... ✓
#>   - Checking header bbox vs. actual content... ✓
#>   - Checking header number of points vs. actual content... ✓
#>   - Checking header return number vs. actual content... ✓
#>  Checking preprocessing already done 
#>   - Checking ground classification... yes
#>   - Checking normalization... yes
#>   - Checking negative outliers... ✓
#>   - Checking flightline classification... no
u
#> $Megaplot.laz
#> $Megaplot.laz$messages
#> [1] "'PointSourceID' attribute is not populated"   
#> [2] "'EdgeOfFlightline' attribute is not populated"
#> [3] "The point cloud is ground classified"         
#> [4] "The point cloud is height normalized"         
#> 
#> $Megaplot.laz$warnings
#> character(0)
#> 
#> $Megaplot.laz$errors
#> character(0)

^{Created on 2021-03-15 by the reprex package (v1.0.0)}>