[R] delete excel id automatically generated

[agent dunham]

Dear community, 

I uploaded an excel with read.xls. My xls file actually have a column which
is an id, ("plot" is the id) : 

plot height area
34    7.6     5.4
85    3.2     4.1
89    5.4     8.4
121   6.7    6.2
...
1325  2.1    1.5

However R uses another id, this way: 

r id   plot height  area
 1      34    7.6     5.4
 2      85    3.2     4.1
 3      89    5.4     8.4
 4     121    6.7    6.2
...
314  1325   2.1    1.5

I'd like that R used "plot" id because I delete some rows while studying
regression, and R seems to be using the first id 1,2,3,4,...,314. Sometimes
it's a mess to understand what R means in the plots when, for instance,
states that data 200 is influential

Thanks in advance, user at host.com





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