使用 xtable - ftable - knitr 打印表格时选项不一致
Inconsistent options when printing tables with xtable - ftable - knitr
我有一些多维数据（调查数据：一些人互相回答问题），我想用 knitr 输出一个 latex table。一切都按预期工作，除了 table 很长，所以我想使用格式选项 longtable 自动断开页面底部的 table 并继续下一个.由于某种原因这不起作用，该选项被忽略：代码输出 "tex table" 但采用默认的 "table" 格式。但是，不会忽略其他选项（例如 rotate.colnames）。
我首先制作一个 ftable 并使用 xtableFtable（包 xtable 的一部分）将其转换为 xtable。然后我使用 print.xtableFtable 函数以乳胶格式输出实际的 table 。
参考 print.xtableFtable 上的文档，然后我使用选项 tabular.environment = getOption("xtable.tabular.environment", "longtable")。但是，此选项将被忽略（也没有错误或警告消息）并打印 "normal" table。使用缩写 tabular.environment = "longtable" 也会被忽略。
奇怪的是，选项 rotate.colnames = TRUE 没有被忽略，但我不明白为什么。它可能与 xtableFtable 函数有关，因为正常的二维 table 是使用 "longtable" 选项打印的，但我不确切地知道。
# sample data - 3 people asked how often they agree with the others
dat <- data.frame("interviewee" = c(1, 1, 2, 2, 3, 3), "subject" = c(2, 2, 3, 3, 1, 1, 1, 3, 1, 2, 2, 2), "answer" = c("agrees", "agrees", "agrees", "disagrees", "disagrees", "disagrees", "agrees", "agrees", "disagrees", "disagrees", "disagrees", "agrees"))
# using ftable to see frequencies how often people agree and disagree with each other
# (this is also how I would like the latex table to look)
f.dat <- ftable(dat$interviewee, dat$answer, dat$subject)
# converting to xtable
x.f.table <- xtableFtable(f.dat)
# printing to .tex format
print.xtableFtable(x.f.table)
# previous line works as expected, except that the table is spanning multiple pages so I want to use the option "longtable"
# the next lines don't work (as in, the environment option is ignored)
print.xtableFtable(x.f.table, tabular.environment = getOption("xtable.tabular.environment", "longtable"))
print.xtableFtable(x.f.table, tabular.environment = "longtable")
# this however does work: the column names are rotated
print.xtableFtable(x.f.table, rotate.colnames = TRUE)
# using a normal table, so without ftable, gives output using the option longtable
simple.table = table(dat$interviewee, dat$answers)
print(simple.table, tabular.environment = "longtable")
我非常欢迎任何建议、解决方案或其他方法来完成这项工作
不是 关于函数为何忽略某些选项的答案，但感谢 user20650 将我指向较早的 question/answer 建议设置全局选项而不是在函数中传递它。
这现在有效：
# first set the global options
options(xtable.tabular.environment = "longtable")
# continuing with the data from the question
print.xtableFtable(x.f.table)
（出于某种原因，选项 rotate.columns = TRUE 现在在编译 tex 代码时会出错，但这完全是另一个问题）
我有一些多维数据（调查数据：一些人互相回答问题），我想用 knitr 输出一个 latex table。一切都按预期工作，除了 table 很长，所以我想使用格式选项 longtable 自动断开页面底部的 table 并继续下一个.由于某种原因这不起作用，该选项被忽略：代码输出 "tex table" 但采用默认的 "table" 格式。但是，不会忽略其他选项（例如 rotate.colnames）。
我首先制作一个 ftable 并使用 xtableFtable（包 xtable 的一部分）将其转换为 xtable。然后我使用 print.xtableFtable 函数以乳胶格式输出实际的 table 。
参考 print.xtableFtable 上的文档，然后我使用选项 tabular.environment = getOption("xtable.tabular.environment", "longtable")。但是，此选项将被忽略（也没有错误或警告消息）并打印 "normal" table。使用缩写 tabular.environment = "longtable" 也会被忽略。
奇怪的是，选项 rotate.colnames = TRUE 没有被忽略，但我不明白为什么。它可能与 xtableFtable 函数有关，因为正常的二维 table 是使用 "longtable" 选项打印的，但我不确切地知道。
# sample data - 3 people asked how often they agree with the others
dat <- data.frame("interviewee" = c(1, 1, 2, 2, 3, 3), "subject" = c(2, 2, 3, 3, 1, 1, 1, 3, 1, 2, 2, 2), "answer" = c("agrees", "agrees", "agrees", "disagrees", "disagrees", "disagrees", "agrees", "agrees", "disagrees", "disagrees", "disagrees", "agrees"))
# using ftable to see frequencies how often people agree and disagree with each other
# (this is also how I would like the latex table to look)
f.dat <- ftable(dat$interviewee, dat$answer, dat$subject)
# converting to xtable
x.f.table <- xtableFtable(f.dat)
# printing to .tex format
print.xtableFtable(x.f.table)
# previous line works as expected, except that the table is spanning multiple pages so I want to use the option "longtable"
# the next lines don't work (as in, the environment option is ignored)
print.xtableFtable(x.f.table, tabular.environment = getOption("xtable.tabular.environment", "longtable"))
print.xtableFtable(x.f.table, tabular.environment = "longtable")
# this however does work: the column names are rotated
print.xtableFtable(x.f.table, rotate.colnames = TRUE)
# using a normal table, so without ftable, gives output using the option longtable
simple.table = table(dat$interviewee, dat$answers)
print(simple.table, tabular.environment = "longtable")
我非常欢迎任何建议、解决方案或其他方法来完成这项工作
不是 关于函数为何忽略某些选项的答案，但感谢 user20650 将我指向较早的 question/answer 建议设置全局选项而不是在函数中传递它。
这现在有效：
# first set the global options
options(xtable.tabular.environment = "longtable")
# continuing with the data from the question
print.xtableFtable(x.f.table)
（出于某种原因，选项 rotate.columns = TRUE 现在在编译 tex 代码时会出错，但这完全是另一个问题）