[BioC] Regarding hexbin in R...

[Kasper Daniel Hansen]

Yes, but you might need to make it into a data.frame. A list has no  
concept of dimension.

Kasper

On Jul 23, 2009, at 13:07 , Wells Oliver wrote:

> Ah, yes, that was likely it, but expanding my data set yields a  
> different
> error. Replacing hits w:
> hits = list(x=c(121.48999999999999, 34.140000000000001,  
> 134.53999999999999,
> 139.56, 123.48999999999999, 87.349999999999994, 151.61000000000001,
> 49.200000000000003, 120.48, 141.56999999999999, 83.329999999999998,
> 141.56999999999999, 187.75, 133.53, 46.18, 37.149999999999999, 104.42,
> 225.90000000000001, 107.43000000000001, 85.340000000000003,
> 142.56999999999999, 173.69, 90.359999999999999, 81.329999999999998,
> 84.340000000000003, 41.159999999999997, 74.299999999999997,
> 184.74000000000001, 109.44, 131.53, 73.290000000000006,  
> 89.359999999999999,
> 76.310000000000002, 231.93000000000001, 166.66999999999999, 124.5,  
> 62.25,
> 89.359999999999999, 192.77000000000001, 126.51000000000001,
> 85.340000000000003, 108.43000000000001, 36.140000000000001,
> 231.93000000000001, 220.88, 88.349999999999994, 149.59999999999999,
> 52.210000000000001, 98.390000000000001, 198.80000000000001, 165.66,
> 153.61000000000001, 190.75999999999999, 191.77000000000001,
> 192.77000000000001, 132.53, 88.349999999999994),  
> y=c(-99.400000000000006,
> -66.269999999999996, -94.379999999999995, -21.079999999999998,  
> -105.42,
> -116.47, -59.240000000000002, -69.280000000000001, -22.09,
> -80.319999999999993, -127.51000000000001, -13.050000000000001,
> -37.149999999999999, -91.370000000000005, -102.41,  
> -56.219999999999999,
> -152.61000000000001, -104.42, -91.370000000000005, -113.45, -120.48,  
> -22.09,
> -51.200000000000003, -61.240000000000002, -65.260000000000005,
> -115.45999999999999, -66.269999999999996, -123.48999999999999,
> -90.359999999999999, -105.42, -125.5, -101.41, -32.130000000000003,
> -92.370000000000005, -115.45999999999999, -102.41,  
> -53.210000000000001,
> -130.52000000000001, -72.290000000000006, -103.41, -120.48, -103.41,
> -111.45, -93.370000000000005, -60.240000000000002, -113.45,
> -61.240000000000002, -59.240000000000002, -162.65000000000001,
> -98.390000000000001, -106.43000000000001, -78.310000000000002,  
> -110.44,
> -113.45, -40.159999999999997, -108.43000000000001,  
> -78.310000000000002))
>
> Now yields:
>
> Error in M[, 1] : incorrect number of dimensions
>
> Any ideas? x and y both have the same number of records.
>
>
> On Thu, Jul 23, 2009 at 3:01 PM, Naomi Altman <naomi at stat.psu.edu>  
> wrote:
>
>> I think the problem is that the data are too sparse.  Hexbin  
>> essentially
>> creates bins for a histogram, which in the first case only has 2  
>> object,
>> total.  Why don't you have a look in "bin" in both cases to see  
>> what you
>> have.
>>
>> --Naomi
>>
>>
>> At 03:36 PM 7/23/2009, Wells Oliver wrote:
>>
>>> Hello all. I'm trying to figure out why plotting one hexbin will  
>>> work and
>>> one will not.
>>> The broken one:
>>>
>>> library(hexbin)
>>> hits = list(x=c(121.48999999999999, 34.140000000000001),
>>> y=c(99.400000000000006, 66.269999999999996))
>>> bin <- hexbin(hits$x, hits$y)
>>> plot(bin)
>>>
>>> Yields:
>>>
>>> Error in cut.default(rcnt, colorcut, labels = FALSE) :
>>> invalid number of intervals
>>>
>>> However,
>>>
>>> hits = list(x=rnorm(1000), y=rnorm(1000))
>>> bin <- hexbin(hits$x, hits$y)
>>> plot(bin)
>>>
>>> Works fine. The thing is printing hits in the former and latter  
>>> instances
>>> both yield a similar data structure. Any ideas? Thank you.
>>>
>>> --
>>> Wells Oliver
>>> wells at submute.net
>>>
>>>       [[alternative HTML version deleted]]
>>>
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>>
>> Naomi S. Altman                                814-865-3791 (voice)
>> Associate Professor
>> Dept. of Statistics                              814-863-7114 (fax)
>> Penn State University                         814-865-1348  
>> (Statistics)
>> University Park, PA 16802-2111
>>
>>
>
>
> -- 
> Wells Oliver
> wells at submute.net
>
> 	[[alternative HTML version deleted]]
>
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