Given a ColorSpec string, either in short or long form, return the corresponding RGB triplet. If the input is not a valid color, return an empty vector.
str2rgb('red') returns [1 0 0]
str2rgb('k') returns [0 0 0]
str2rgb('pizza') returns 
When I see beautiful and efficient Ly Cao solutions, I have the feeling that Cody has found another master (after Alfonso).
Thank you. I'm flattered. I still have a lot to learn.
So many choices
Find Rotated Substring
Basic arrays operations.
Find the index of the largest value in any vector X=[4,3,4,5,9,12,0,4.....5]
Cumulative maximum of an array
Find similar/related functions
Create a figure and plot data
Maximum of each diagonal
Create an 8-color version of an image
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