Trying to run a code but it keeps giving me the error that 'cr' is undefined. I don't know why.
R=input('Enter the R value for the RGB color model:');G=input('Enter the G value for the RGB color model:');B=input('Enter the B value for the RGB color model:');if(0>R||R>255) disp('Invalid RGB value.') return;elseif(0>G||G>255) disp('Invalid RGB value.') return;elseif(0>B||B>255) disp('Invalid RGB value.') return;elseif(R==G==B) cr='Gray';elseif(R>=G>=B) cr='Red-Yellow';elseif(G>R>=B) cr='Yellow-Green';elseif(G>=B>R) cr='Green-Cyan';elseif(B>G>R) cr='Cyan-Blue';elseif(B>R>=G) cr='Blue-Magenta';elseif(R>=B>G) cr='Magenta-Red';else disp('Error.')endfprintf('%s',cr)
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