我使用xtable
自动生成LaTeX表,并希望在单元格内强制换行/中断。
可以使用单元格中的\newline
来完成此操作,但是我无法阻止xtable
用\
替换反斜杠($\backslash$
)。< / p>
以下是一个例子......
library(magrittr)
library(xtable)
my.data <- cbind(c("1", "2", "3"),
c("0", "1", "2"),
c("2", "3", "4")) %>%
as.data.frame()
## Generate output variable
my.data$out <- paste0(my.data$V1,
" \\newline (",
my.data$V2,
" to ",
my.data$V3,
")")
## Check the data frame...
my.data
V1 V2 V3 out
1 1 2 3 1 \\newline (2 to 3)
2 0 1 2 0 \\newline (1 to 2)
3 2 3 4 2 \\newline (3 to 4)
## Now generate xtable
xtable(my.data)
% latex table generated in R 3.2.0 by xtable 1.7-4 package
% Wed Jun 24 11:51:59 2015
\begin{table}[ht]
\centering
\begin{tabular}{rllll}
\hline
& V1 & V2 & V3 & out \\
\hline
1 & 1 & 2 & 3 & 1 $\backslash$newline (2 to 3) \\
2 & 0 & 1 & 2 & 0 $\backslash$newline (1 to 2) \\
3 & 2 & 3 & 4 & 2 $\backslash$newline (3 to 4) \\
\hline
\end{tabular}
\end{table}
paste0()
正常工作正常,但将此数据框传递给xtable
并不会产生我期望(/希望)的内容......
xtable(my.data)
% latex table generated in R 3.2.0 by xtable 1.7-4 package
% Wed Jun 24 11:51:59 2015
\begin{table}[ht]
\centering
\begin{tabular}{rllll}
\hline
& V1 & V2 & V3 & out \\
\hline
1 & 1 & 2 & 3 & 1 \newline (2 to 3) \\
2 & 0 & 1 & 2 & 0 \newline (1 to 2) \\
3 & 2 & 3 & 4 & 2 \newline (3 to 4) \\
\hline
\end{tabular}
\end{table}
因此,当通过LaTeX解析时,我会在该单元格中获得换行符。
关于line breaks in captions的类似问题建议使用双重转义的反斜杠,但在这种情况下也不起作用......
my.data$out <- paste0(my.data$V1,
" \\\\newline (",
my.data$V2,
" to ",
my.data$V3,
")")
% latex table generated in R 3.2.0 by xtable 1.7-4 package
% Wed Jun 24 11:57:04 2015
\begin{table}[ht]
\centering
\begin{tabular}{rllll}
\hline
& V1 & V2 & V3 & out \\
\hline
1 & 1 & 2 & 3 & 1 $\backslash$$\backslash$newline (2 to 3) \\
2 & 0 & 1 & 2 & 0 $\backslash$$\backslash$newline (1 to 2) \\
3 & 2 & 3 & 4 & 2 $\backslash$$\backslash$newline (3 to 4) \\
\hline
\end{tabular}
\end{table}
接下来,我查看了xtable
help和graph gallery,并认为我可以使用sanitise.text.function
明确指定\
替换{ {1}}(然后我可以在我的\
电话中使用\newline
但不幸的是,这不会起作用,因为第二个paste0()
被视为逃避以下关闭双引号......
\
我可以使用整个字符串xtable(my.data, sanitise.text.function = function(str)gsub("\", "\",str,fixed=TRUE))
Error: unexpected input in:
"xtable(my.data,
sanitise.text.function = function(str)gsub("\", "\"
并将其替换为自己吗?
\newline
由于my.data$out <- paste0(my.data$V1,
" \newline (",
my.data$V2,
" to ",
my.data$V3,
")")
xtable(my.data, sanitise.text.function = function(str)gsub("\newline", "\newline",str,fixed=TRUE))
% latex table generated in R 3.2.0 by xtable 1.7-4 package
% Wed Jun 24 12:05:25 2015
\begin{table}[ht]
\centering
\begin{tabular}{rllll}
\hline
& V1 & V2 & V3 & out \\
\hline
1 & 1 & 0 & 2 & 1
ewline (0 to 2) \\
2 & 2 & 1 & 3 & 2
ewline (1 to 3) \\
3 & 3 & 2 & 4 & 3
ewline (2 to 4) \\
\hline
\end{tabular}
\end{table}
在通过\n
进行解析后被视为换行符,因此无欢乐。
This thread建议使用xtable
作为identity
的函数参数但不起作用(也不使用sanitise.text.function
的标识函数)。我发现post on R-help提出类似问题(但问题是function(x){x}
被解释为标签)但是这也没有用(为简洁起见,省略了输出)。
\t
感觉我已经接近使用 my.data
V1 V2 V3 out
1 1 0 2 1 \\newline (0 to 2)
2 2 1 3 2 \\newline (1 to 3)
3 3 2 4 3 \\newline (2 to 4)
xtable(my.data, sanitise.text.function = identity)
% latex table generated in R 3.2.0 by xtable 1.7-4 package
% Wed Jun 24 13:09:47 2015
\begin{table}[ht]
\centering
\begin{tabular}{rllll}
\hline
& V1 & V2 & V3 & out \\
\hline
1 & 1 & 0 & 2 & 1 $\backslash$newline (0 to 2) \\
2 & 2 & 1 & 3 & 2 $\backslash$newline (1 to 3) \\
3 & 3 & 2 & 4 & 3 $\backslash$newline (2 to 4) \\
\hline
\end{tabular}
\end{table}
my.data
V1 V2 V3 out
1 1 0 2 1 \newline (0 to 2)
2 2 1 3 2 \newline (1 to 3)
3 3 2 4 3 \newline (2 to 4)
xtable(my.data,
sanitise.text.function = identity)
% latex table generated in R 3.2.0 by xtable 1.7-4 package
% Wed Jun 24 13:28:28 2015
\begin{table}[ht]
\centering
\begin{tabular}{rllll}
\hline
& V1 & V2 & V3 & out \\
\hline
1 & 1 & 0 & 2 & 1
ewline (0 to 2) \\
2 & 2 & 1 & 3 & 2
ewline (1 to 3) \\
3 & 3 & 2 & 4 & 3
ewline (2 to 4) \\
\hline
\end{tabular}
\end{table}
选项,但我无法解决这个问题。有办法以某种方式这样做吗?
提前感谢任何建议/见解。
答案 0 :(得分:2)
您是否使用sanitize.*.function
而非options()
配置print()
?例如,
options(xtable.sanitize.text.function=identity)
阻止\
在单元格中转换为$\backslash$
。
答案 1 :(得分:1)
我可以确认xtable.sanitize.text.function有效。我用它如下
options(xtable.sanitize.text.function = line_break_function)
line_break_function <- function(x){
gsub("$<$br$>$","<br>",x)
}
我使用下面的方法在汇总函数
中为文本块添加换行符cv %>%
group_by() %>%
summarise(colname = paste(`summary`,":",`Submit Date`,collapse = ",<br>"))
print(xtable, type = "html")