[R] Heatmap with error message: `x' must be a numeric matrix

peter dalgaard pdalgd at gmail.com
Wed Jun 26 09:08:54 CEST 2013

On Jun 25, 2013, at 21:51 , Rui Barradas wrote:

> Hello,
> Your data has commas as decimal points, R uses the period. So the data is read in as strings, not numbers. You can change this by using argument 'dec' of read.table:
> ?read.table
> read.table(...etc..., dec = ",")
> Or you can replace the commas with periods:

Or use read.delim2(). That is what it is for.

Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com

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