Hello,   I am relatively new to R and I am working through the code that is provided in the book Numerical Ecology with R and I have run across an error message that I can't seem to figure out.   I am using the vegan, ade4, gclus and cluster packages.  The code is as follows: # Ordered community table # Species are ordered by their weighted averages on site scores or <- vegemite(spe, spe.chwo) spe is the dataframe spe.chwo came from:   spe.norm <- decostand(spe, "normalize")   spe.ch <- vegdist(spe.norm, "euc")   spe.ch.UPGMA <- hclust(spe.ch, method = "average")   spe.chwo <- reorder.hclust(spe.ch.UPGMA, spe.ch)   and the error is Error in vegemite(spe, spe.chwo) :   Cowardly refusing to use longer than 1 char symbols: Use scale  The data in the dataframe is biomass data recorded to 4 digits.  Here is an example of part of the dataframe:
 AGA   ANT   BON  CAL11 0.42 0.092 0.051 0.0002 0.00 0.000 0.007 0.0024 0.00 0.008 0.000 0.0097 0.00 0.002 0.003 0.002

I'm wondering if this code is not working because my data is more than one digit long. Any suggestions or insight on how to get this code to work with biomass data would be greatly appreciated. Thank you, Val  		 	   		  
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