If I do not add "ress" into the data frame "res", there is no quote in the
data frame. However, I add "ress", all column were found the quote.
How to remove it?
If you can delete the quote in the file "ress", that is better.
Thanks.

> ress[1:10]
 [1] "ABHO.ABNE" "ABHO.ACBA" "ABHO.ACGI" "ABHO.ACKO" "ABHO.ACMA" "ABHO.ACMO"
 [7] "ABHO.ACPS" "ABHO.ACSE" "ABHO.ACTE" "ABHO.ACTR"
> res=cbind(obv.value,p.value,mean.sim)
> res[1:10,]
      obv.value p.value mean.sim
 [1,]         2     1.0      6.0
 [2,]         0     1.0      0.0
 [3,]        66     0.5     49.6
 [4,]         3     1.0      3.0
 [5,]         0     1.0     64.7
 [6,]         0     1.0      0.0
 [7,]         0     1.0      0.0
 [8,]        51     0.5     39.8
 [9,]         0     1.0     47.4
[10,]        59     0.7     72.0

> ress=cbind(res,ress)
> ress[1:10,]
      obv.value p.value mean.sim ress
 [1,] "2"       "1"     "6"      "ABHO.ABNE"
 [2,] "0"       "1"     "0"      "ABHO.ACBA"
 [3,] "66"      "0.5"   "49.6"   "ABHO.ACGI"
 [4,] "3"       "1"     "3"      "ABHO.ACKO"
 [5,] "0"       "1"     "64.7"   "ABHO.ACMA"
 [6,] "0"       "1"     "0"      "ABHO.ACMO"
 [7,] "0"       "1"     "0"      "ABHO.ACPS"
 [8,] "51"      "0.5"   "39.8"   "ABHO.ACSE"
 [9,] "0"       "1"     "47.4"   "ABHO.ACTE"
[10,] "59"      "0.7"   "72"     "ABHO.ACTR"

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