R help - Sep 2009 - boxplot

Hi,

I m not able to plot normalized data(normalization by rma) using boxplot. I
don't know why?
basically, object(formed of normalized data) belong to ExpressionSet class.

It is showing error

Error in x[!xna] : object of type 'S4' is not subsettable
In addition: Warning messages:
1: In is.na(x) : is.na() applied to non-(list or vector) of type 'S4'
2: In is.na(x) : is.na() applied to non-(list or vector) of type 'S4'


Now, how to plot? Should  I have use another function?

By
Sukhbir Singh Rattan

	[[alternative HTML version deleted]]

Hi

I do not know rma but from help page boxplot requires as input a formula, 
list (only some list of numerics), data frame or numeric vector. I am not 
sure if your object is one of these. If not you need to convert it to 
object which is acceptable for boxplot. 

Regards
Petr

r-help-bounces at r-project.org napsal dne 17.09.2009 08:29:43:
> Hi,
> 
> I m not able to plot normalized data(normalization by rma) using 
boxplot. I
> don't know why?
> basically, object(formed of normalized data) belong to ExpressionSet 
class.
> 
> It is showing error
> 
> Error in x[!xna] : object of type 'S4' is not subsettable
> In addition: Warning messages:
> 1: In is.na(x) : is.na() applied to non-(list or vector) of type
'S4'
> 2: In is.na(x) : is.na() applied to non-(list or vector) of type
'S4'
> 
> 
> Now, how to plot? Should  I have use another function?
> 
> By
> Sukhbir Singh Rattan
> 
>    [[alternative HTML version deleted]]
> 
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