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Can you use extract by attributes to create a new raster?
If you have that, then you can use Extract by Attributes to create new rasters of just one value. It would be the value from the original raster though, and you’d have to Reclassify it to 1 or 0. You can use Reclassify directly to generate a new raster and map the input values to new ones.
Can a raster dataset be a continuous variable?
The previous chapter covered raster datasets with continuous variable, where the data can take any value. This chapter covers raster datasets with discrete variables, where the data are classified into a limited number of values. We still use numbers to work with discrete data.
How to crop raster data for study region?
We only need raster data for our study region, so we can crop it using st_crop (). Immediately after loading the mammal range maps we used a simple dplyr operation to keep only the primates (our Order of interest), now we can spatially subset the data to keep only the polygons within our study area.
Can you use reclassify to generate a raster?
You can use Reclassify directly to generate a new raster and map the input values to new ones. So you could map 4 to 1 and all other values to 0. You can also use a Con statement in the Raster Calculator to generate a binary output.
What do I need to create a raster dataset?
The bit-depth (radiometric resolution) of the output raster dataset. If this is not specified, your raster dataset will be created with a default pixel type of 8-bit unsigned integer.
Is there a way to change the resolution of a raster?
Available with Spatial Analyst license. There are tools available that alter the resolution of an existing raster. If you have one raster at a finer resolution than other rasters, you may want to resample the finer resolution raster to the same resolution of the coarser ones, making all the raster datasets the same resolution.
How to merge multiple raster files into a new raster file?
The inputs must have the same number of bands and same bit depth. Open the Mosaic To New Raster tool by navigating to ArcToolbox > Data Management Tools > Raster > Raster Dataset . Insert the raster files. Select the output location. Specify a name and extension for the output. Specify the pixel type.
How to use conditions in a raster calculator?
Assuming that you already masked your “green” raster with NoData values where you don’t want to replace the “red” values, Then you can use conditions in raster calculator (Map algebra tool). This would be a code like below Which means: if the green raster is noData, then use the value of the red raster, otherwise use “green”.
How to replace part of a raster with another raster?
I am using ArcGIS Desktop 10.5 and I am unable to find how to replace a part of a raster with another raster. I have a Raster for topography and for a part of it I need to recreate a past morphology which was done by creating a new raster from isoline but only for a part of it as briefly shown here: How can I do it?