# Set the significant digits for each column in a xtable for fancy Sweave output

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This tip may be useful in the situations when you need to set the number of digits to print for the different columns in a matrix/data.frame to be outputted as a LaTeX table.

For example:

`#install.packages("xtable")`

```
```#library(xtable)

```
tmp <- matrix(rnorm(9), 3, 3)
xtmp <- xtable(tmp)
digits(xtmp) <- c(0,0,3,4)
print(xtmp, include.rownames = FALSE) # row names suppressed
```

See here for a nice gallery depicting a large variety of outputs you can produce using the xtable package.

To

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