## 25.13 Improvements Using BookTabs

REVIEW The booktabs package for LaTeX provides additional functionality that we can make use of with knitr::kable(). To use this be sure to include the following in the preamble (before the \begin{document} of your .Rnw file:

# Load the package from the local library into the R session.

\usepackage{booktabs}

We can then set booktabs=TRUE to remove the clutter of the extra lines.

# Use the booktabs option to improve presentation of the table.

ds %>% kable(row.names=FALSE, digits=0, booktabs=TRUE)
Location MinTemp MaxTemp Rainfall Evaporation
Tuggeranong 10 25 0 NA
Wollongong 21 31 1 NA
Dartmoor 6 15 2 3
Sale 17 29 0 6
WaggaWagga 8 31 0 4

In the following example we notice that with more rows booktabs=TRUE will add a small gap every 5 rows.

# Display a tale with more observations.

weatherAUS[sample(nobs, 12), vars] %>%
kable(row.names=FALSE, digits=0, booktabs=TRUE)
Location MinTemp MaxTemp Rainfall Evaporation
Perth 18 36 0 11
Tuggeranong -4 16 0 NA
Bendigo 3 22 0 NA
Brisbane 15 20 0 3
PearceRAAF 3 22 0 NA
Tuggeranong 12 25 63 NA
Launceston 13 20 29 NA
Tuggeranong 10 29 0 NA
Wollongong 16 23 0 NA
CoffsHarbour 5 20 0 NA
Hobart 13 20 2 3
Woomera 24 46 0 NA

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