Re: [R] plotting many unique colors with categorical data

2011-08-06 Thread Jim Lemon
On 08/06/2011 03:46 AM, SavageMaDaMe wrote: Hi- I am trying to plot a matrix of categorical values across time using color to represent each individual factor. For example: 1982 1983 1984 1985 1986 1987 119 19 68 68 19 19 68 268 68 19 19 68 68 19 326 26

Re: [R] plotting many unique colors with categorical data

2011-08-05 Thread Tyler Rinker
.gov > CC: r-help@r-project.org > Subject: Re: [R] plotting many unique colors with categorical data > > That's far too many to easily distinguish by color, especially if they > need to be > distinct, and not levels within a larger class. For the latter, you could get > by

Re: [R] plotting many unique colors with categorical data

2011-08-05 Thread Sarah Goslee
That's far too many to easily distinguish by color, especially if they need to be distinct, and not levels within a larger class. For the latter, you could get by with say 10 shades of red, 10 shades of blue, etc for related factors. But it doesn't sound like that's what you have. I don't think the

Re: [R] plotting many unique colors with categorical data

2011-08-05 Thread jim holtman
If you go to color brewer (http://colorbrewer2.org/) they don't have any color sequences above about 12 to provide separation. 75 is probably way too many, especially considering that a portion of the population is color blind and other can not see some of the gradations. You can create a pallet

[R] plotting many unique colors with categorical data

2011-08-05 Thread SavageMaDaMe
Hi- I am trying to plot a matrix of categorical values across time using color to represent each individual factor. For example: 1982 1983 1984 1985 1986 1987 119 19 68 68 19 19 68 268 68 19 19 68 68 19 326 26 34 34 26 26 26 457 34