I am using a similar dataset to the following:

a= c("Fruits", "Adam","errorA", "steve", "errorS",
     "apples", 17.1,2.22, 3.2,1.1,
     "oranges", 3.1,2.55, 18.1,3.2 )
a_table=data.matrix(t(matrix(a,nrow=5)))

I would like to highlight the smallest value in the Adam and Steve columns
and, also plus and minus the errors *(using xtable/ hmisc)*

example output (ignoring decimals):

 Fruits && Adam && Steve \\
 Apples && 17\pm 2 && \mathbf{3 \pm 1} \\
 Oranges && \mathbf{3\pm 2} && 18 \pm 3\\

Additionally is there any way I can have just to 2 d.p.?

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