[R] Question on EBImage package

[Martin Morgan]

Hi --

EBImage is a Bioconductor package so better to ask there

   http://bioconductor.org/help/mailing-list/

and to cc the packageDescription("EBImage")$Maintainer

Martin

On 06/20/2012 02:57 PM, Steven Winter wrote:
> I am having trouble using the "resize" function (in the package EBImage) with matrices containing double values. Let's say I have a matrix 'b' with these values:
>
>> a = c(1.25,1.555,1.245,1.265,1.656,1.235,1.848,1.959,1.548,1.245454,1.989,1.24)
>> b = matrix(a,4,3)
>> b
>        [,1]  [,2]     [,3]
> [1,] 1.250 1.656 1.548000
> [2,] 1.555 1.235 1.245454
> [3,] 1.245 1.848 1.989000
> [4,] 1.265 1.959 1.240000
>
>
> I then use the resize function to increase the size of the matrix to a 6 by 10 matrix, but unfortunately there is a glitch: all of the numbers come out as ones:
>> y = resize(b,6,10)
>> y
> Image
>    colormode: Grayscale
>    storage.mode: double
>    dim: 6 10
>    nb.total.frames: 1
>    nb.render.frames: 1
> imageData(object)[1:5,1:6]:
>       [,1] [,2] [,3] [,4] [,5] [,6]
> [1,]    1    1    1    1    1    1
> [2,]    1    1    1    1    1    1
> [3,]    1    1    1    1    1    1
> [4,]    1    1    1    1    1    1
> [5,]    1    1    1    1    1    1
>
> Does anyone know why this is happening? When I use integer values, the function produces correct output.
> Thank you for your help.
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>
>
>
>
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