[R] how to proof the trend of two columns of data?

[Rui Barradas]

Hello,

Inline.

Em 09-01-2017 14:55, vod vos escreveu:
> Hello everyone,
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> If there are two columns, one is age (numeric, cut to several groups), the other is hair color type(factor: yellow, black, white).
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> If the age column is not normal distributed

If you use ?lm, it's the residuals that should be normally distributed, 
not age.
You can also use ?glm with a binomial link, in which case you should 
recode type as white/not white.

Hope this helps,

Rui Barradas

, which statistic method should use to prove the trend relationship 
between them, for example, the older has more probability of white hair 
type? Are there any existed R package to figure out this situation?
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> Thank you.
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