[R] double matrix?
dmck at u.washington.edu
Wed Jul 31 23:46:13 CEST 2013
What are the entries in your matrix? If they are something that won't coerce to numeric, you need to backtrack. Note how R distinguishes types of characters.
NAs introduced by coercion
On Jul 31, 2013, at 1:47 PM, bruce087 at umn.edu wrote:
> I have a 37 X 473971 character matrix that I am trying to convert into a numeric matrix. When I use the code:
> class(matrix) = "numeric"
> I end up with something called a "double matrix" whose dimensions are still 37 X 473971
> I have also tried
> new = apply(matrix,2, as.numeric) and got the same thing.
> The analysis code I am ultimately attempting to run on this data requires that it be in a numerical matrix, and it is really not okay with a double matrix.
> Does anyone know how to fix this?
> Jessica R.B. Musselman, MS
> T32 Trainee/Doctoral Candidate
> University of Minnesota
> Department of Pediatrics
> Division of Epidemiology/Clinical Research
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Don McKenzie, Research Ecologist
Pacific WIldland Fire Sciences Lab
US Forest Service
School of Forest Resources, College of the Environment
CSES Climate Impacts Group
University of Washington
dmck at uw.edu
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