[R-sig-Geo] using the same legend for different scenarios in sf plots

[Paulo Flores Ribeiro]

Hello,
I want to compare the spatial distribution of a variable in 7 different 
scenarios by running the same plot code successively 7 times (within sf 
package), each time changing the values of the variable for each 
scenario. In each run, I copy-paste the map into a word document. In the 
end, I want to visually compare the 7 maps, but for that I need the 
scale range of the legend values to be the same on the seven maps 
(including the colour ramp).
How to force the scale interval (and the corresponding colour ramp) to 
be the same on the seven maps, within the sf package?
Thanks,
PauloFR


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