Questions tagged [missing-data]

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11
votes
1answer
13k views

Replace NA's with 0 for raster data using R?

I am new in R. How can I replace NA's with 0 for my raster data which have spatial information?
2
votes
1answer
40 views

Calculating correlation between points and raster values with missing points (need missing as 0s) (QGIS)

I feel like this should be easy but I'm struggling. I have a raster data set of Topographic Wetness Index (TWI) and a point data set of crop yield. I want to see how TWI and yield are correlated by ...
1
vote
2answers
679 views

Export GRASS raster as GeoTIFF : nodata values exported as -nan (what happens in R?)

I am using the package raster to work with GeoTIFF raster files which I exported from GRASS using r.out.gdal. GRASS assigned the value -nan to some raster files (type FLOAT32) for missing values. ...
0
votes
1answer
51 views

Sentinel-1 missing data gaps between two images GEE [duplicate]

I am trying to export a Sentinel-1 mosaic with the code below. I keep getting this missing data gap between the two images. Even when I export the images separately, and mosaic them myself in ArcGIS, ...