[R] Selecting / creating unique colours for behavioural / transitional data

[Ross Culloch]

Hi Olivier,

Thanks very much for your reply. I have tried your script, but when the
script for the graph runs it comes up with several error messages repeating
that 'supplied colour is not numeric or character'



Olivier Delaigue wrote:
> 
>> library(colorRamps)
>> image(matrix(1:150, 10), col = blue2green2red(15))
> 
> Regards,
> 
> Olivier Delaigue
> 
> 
> Ross Culloch wrote:
>> 
>> Dear all,
>> 
>> This seems like a simple problem but i've searched the help files and
>> tried various options but failed, so apologies in advance for asking what
>> i'm sure is an easy thing to do!
>> 
>> In short, I have displayed behavioural data using the TraMineR package
>> such that there is a colour change between the transition of behaviours,
>> however, all the methods that i have used thus far have given me gradual
>> changes in colour such that it is impossible to tell the difference from
>> several of the behaviours. I have looked in the help section here, and
>> looked at various books and help files in R, but most seem intent on
>> gradual changes in colour for heat, terrain, depth, etc - i may not be
>> looking in the correct places, or perhaps i don't know what i'm looking
>> for, exactly.
>> 
>> The code below is the closest i can get to colours being not too similar,
>> but it's still hard to tell apart:
>> 
>> col <- rainbow(15,start = 0, end = 1, gamma = 0.5)
>> 
>> What i ideally want to do is create a palette with random colours that
>> are no where near one another so that i can tell the 15 different
>> behaviours apart - is this possible?
>> 
>> If anyone can help i would be most greatful!
>> 
>> Best wishes,
>> 
>> Ross
>> 
> 
> 

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