R - 调度到新方法时出现问题 print.list()
R - problems dispatching to new method print.list()
在我的summarytools包中,我已经成功定义了print.by
方法。然而,即使我对 print.list
执行了完全相同的步骤,调度还是失败了。
该方法似乎已经注册,连同包中定义的另外两个打印方法:
grep("print(\.summarytools$|\.by$|\.list$)", methods("print"), value = TRUE)
[1] "print.by" "print.list" "print.summarytools"
在命名空间中,我有:
S3method(print,by)
S3method(print,list)
S3method(print,summarytools)
例子
devtools::install_github("dcomtois/summarytools", ref = "dev-current")
library(summarytools)
list_obj <- lapply(tobacco[,c(1,3)], freq))
## $gender
## For best results printing list objects with summarytools, use view(x, method = 'pander')
## Frequencies
## tobacco$gender
## Type: Factor
##
## Freq % Valid % Valid Cum. % Total % Total Cum.
## ----------- ------ --------- -------------- --------- --------------
## F 489 50.00 50.00 48.90 48.90
## M 489 50.00 100.00 48.90 97.80
## <NA> 22 2.20 100.00
## Total 1000 100.00 100.00 100.00 100.00
##
## $age.gr
## Frequencies
## tobacco$age.gr
## Type: Factor
##
## Freq % Valid % Valid Cum. % Total % Total Cum.
## ----------- ------ --------- -------------- --------- --------------
## 18-34 258 26.46 26.46 25.80 25.80
## 35-50 241 24.72 51.18 24.10 49.90
## 51-70 317 32.51 83.69 31.70 81.60
## 71 + 159 16.31 100.00 15.90 97.50
## <NA> 25 2.50 100.00
## Total 1000 100.00 100.00 100.00 100.00
比较...
summarytools:::print.list(list_obj)
## Frequencies
## tobacco$gender
## Type: Factor
##
## Freq % Valid % Valid Cum. % Total % Total Cum.
## ----------- ------ --------- -------------- --------- --------------
## F 489 50.00 50.00 48.90 48.90
## M 489 50.00 100.00 48.90 97.80
## <NA> 22 2.20 100.00
## Total 1000 100.00 100.00 100.00 100.00
##
## tobacco$age.gr
## Type: Factor
##
## Freq % Valid % Valid Cum. % Total % Total Cum.
## ----------- ------ --------- -------------- --------- --------------
## 18-34 258 26.46 26.46 25.80 25.80
## 35-50 241 24.72 51.18 24.10 49.90
## 51-70 317 32.51 83.69 31.70 81.60
## 71 + 159 16.31 100.00 15.90 97.50
## <NA> 25 2.50 100.00
## Total 1000 100.00 100.00 100.00 100.00
这里是print.list.R
的内容:
#' Print Method for Objects of Class \dQuote{list}.
#'
#' Displays a list comprised of summarytools objects created with \code{lapply}.
#'
#' @usage
#' \method{print}{list}(x, method = "pander", file = "",
#' append = FALSE, report.title = NA, table.classes = NA,
#' bootstrap.css = st_options('bootstrap.css'),
#' custom.css = st_options('custom.css'), silent = FALSE,
#' footnote = st_options('footnote'),
#' escape.pipe = st_options('escape.pipe'), \dots)
#'
#' @inheritParams print.summarytools
#' @method print list
#' @export
print.list <- function(x, method = "pander", file = "", append = FALSE,
report.title = NA, table.classes = NA,
bootstrap.css = st_options('bootstrap.css'),
custom.css = st_options('custom.css'),
silent = FALSE, footnote = st_options('footnote'),
escape.pipe = st_options('escape.pipe'), ...) {
if (inherits(x[[1]], "summarytools")) {
view(x, method = method, file = file, append = append,
report.title = report.title, table.classes = table.classes,
bootstrap.css = bootstrap.css, custom.css = custom.css,
silent = silent, footnote = footnote, escape.pipe = escape.pipe,
...)
} else {
base::print.default(x, ...)
}
}
我已经阅读了一些与泛型函数及其方法有关的文档,但我无法确定问题所在,也没有找到解决方案。我查看了 setMethod()
函数和 "signature" 参数,但由于该函数很可能会在没有参数的情况下被调用,所以我看不出这有什么帮助。
两者之间的一个区别是 print.by
存在于 base
包中,而 print.list
不存在。但我无法确定这是否相关。
有关我如何开始使用此类函数定义的更多背景信息,请参见 。
编辑:我尝试了其他一些没有用的东西...
- 重新定义
print.default
而不是按照 here 的建议定义 print.list
,但它仍然不起作用。
- 在函数定义后添加对setMethod的调用(
setMethod(f = "print", signature = "list", definition = print.list)
);仍然没有好的结果(我不太确定我得到了 "signature" 参数应该是什么。我发现关于它的文档相当混乱)。
我开始认为我可能需要对 Roxygen 做一些改动才能使其正常工作...但是具体是什么改动,我不知道。
非常感谢任何帮助。
正如源代码中的注释中所解释的(有点神秘)(可用 here) and stated (more explicitly) in 、"auto-printing"(例如,与 (list_obj <- lapply(tobacco[,c(1,3)], freq))
一起出现)只能在显式 类,因此不适用于列表。它适用于任何打印调用,但:
devtools::install_github("dcomtois/summarytools", ref = "dev-current", quiet = TRUE)
library(summarytools)
# For best results, consider updating pander to its most recent version. You can do so
# by using devtools::install_github('rapporter/pander')
list_obj <- lapply(tobacco[,c(1,3)], freq)
list_obj # will not work since it uses auto-printing
# $gender
# For best results printing list objects with summarytools, use view(x, method =
# 'pander')
# Frequencies
# tobacco$gender
# Type: Factor
#
# Freq % Valid % Valid Cum. % Total % Total Cum.
# ----------- ------ --------- -------------- --------- --------------
# F 489 50.00 50.00 48.90 48.90
# M 489 50.00 100.00 48.90 97.80
# <NA> 22 2.20 100.00
# Total 1000 100.00 100.00 100.00 100.00
#
# $age.gr
# Frequencies
# tobacco$age.gr
# Type: Factor
#
# Freq % Valid % Valid Cum. % Total % Total Cum.
# ----------- ------ --------- -------------- --------- --------------
# 18-34 258 26.46 26.46 25.80 25.80
# 35-50 241 24.72 51.18 24.10 49.90
# 51-70 317 32.51 83.69 31.70 81.60
# 71 + 159 16.31 100.00 15.90 97.50
# <NA> 25 2.50 100.00
# Total 1000 100.00 100.00 100.00 100.00
print(list_obj) # will work
# Frequencies
# tobacco$gender
# Type: Factor
#
# Freq % Valid % Valid Cum. % Total % Total Cum.
# ----------- ------ --------- -------------- --------- --------------
# F 489 50.00 50.00 48.90 48.90
# M 489 50.00 100.00 48.90 97.80
# <NA> 22 2.20 100.00
# Total 1000 100.00 100.00 100.00 100.00
#
# tobacco$age.gr
# Type: Factor
#
# Freq % Valid % Valid Cum. % Total % Total Cum.
# ----------- ------ --------- -------------- --------- --------------
# 18-34 258 26.46 26.46 25.80 25.80
# 35-50 241 24.72 51.18 24.10 49.90
# 51-70 317 32.51 83.69 31.70 81.60
# 71 + 159 16.31 100.00 15.90 97.50
# <NA> 25 2.50 100.00
# Total 1000 100.00 100.00 100.00 100.00
在我的summarytools包中,我已经成功定义了print.by
方法。然而,即使我对 print.list
执行了完全相同的步骤,调度还是失败了。
该方法似乎已经注册,连同包中定义的另外两个打印方法:
grep("print(\.summarytools$|\.by$|\.list$)", methods("print"), value = TRUE)
[1] "print.by" "print.list" "print.summarytools"
在命名空间中,我有:
S3method(print,by)
S3method(print,list)
S3method(print,summarytools)
例子
devtools::install_github("dcomtois/summarytools", ref = "dev-current")
library(summarytools)
list_obj <- lapply(tobacco[,c(1,3)], freq))
## $gender
## For best results printing list objects with summarytools, use view(x, method = 'pander')
## Frequencies
## tobacco$gender
## Type: Factor
##
## Freq % Valid % Valid Cum. % Total % Total Cum.
## ----------- ------ --------- -------------- --------- --------------
## F 489 50.00 50.00 48.90 48.90
## M 489 50.00 100.00 48.90 97.80
## <NA> 22 2.20 100.00
## Total 1000 100.00 100.00 100.00 100.00
##
## $age.gr
## Frequencies
## tobacco$age.gr
## Type: Factor
##
## Freq % Valid % Valid Cum. % Total % Total Cum.
## ----------- ------ --------- -------------- --------- --------------
## 18-34 258 26.46 26.46 25.80 25.80
## 35-50 241 24.72 51.18 24.10 49.90
## 51-70 317 32.51 83.69 31.70 81.60
## 71 + 159 16.31 100.00 15.90 97.50
## <NA> 25 2.50 100.00
## Total 1000 100.00 100.00 100.00 100.00
比较...
summarytools:::print.list(list_obj)
## Frequencies
## tobacco$gender
## Type: Factor
##
## Freq % Valid % Valid Cum. % Total % Total Cum.
## ----------- ------ --------- -------------- --------- --------------
## F 489 50.00 50.00 48.90 48.90
## M 489 50.00 100.00 48.90 97.80
## <NA> 22 2.20 100.00
## Total 1000 100.00 100.00 100.00 100.00
##
## tobacco$age.gr
## Type: Factor
##
## Freq % Valid % Valid Cum. % Total % Total Cum.
## ----------- ------ --------- -------------- --------- --------------
## 18-34 258 26.46 26.46 25.80 25.80
## 35-50 241 24.72 51.18 24.10 49.90
## 51-70 317 32.51 83.69 31.70 81.60
## 71 + 159 16.31 100.00 15.90 97.50
## <NA> 25 2.50 100.00
## Total 1000 100.00 100.00 100.00 100.00
这里是print.list.R
的内容:
#' Print Method for Objects of Class \dQuote{list}.
#'
#' Displays a list comprised of summarytools objects created with \code{lapply}.
#'
#' @usage
#' \method{print}{list}(x, method = "pander", file = "",
#' append = FALSE, report.title = NA, table.classes = NA,
#' bootstrap.css = st_options('bootstrap.css'),
#' custom.css = st_options('custom.css'), silent = FALSE,
#' footnote = st_options('footnote'),
#' escape.pipe = st_options('escape.pipe'), \dots)
#'
#' @inheritParams print.summarytools
#' @method print list
#' @export
print.list <- function(x, method = "pander", file = "", append = FALSE,
report.title = NA, table.classes = NA,
bootstrap.css = st_options('bootstrap.css'),
custom.css = st_options('custom.css'),
silent = FALSE, footnote = st_options('footnote'),
escape.pipe = st_options('escape.pipe'), ...) {
if (inherits(x[[1]], "summarytools")) {
view(x, method = method, file = file, append = append,
report.title = report.title, table.classes = table.classes,
bootstrap.css = bootstrap.css, custom.css = custom.css,
silent = silent, footnote = footnote, escape.pipe = escape.pipe,
...)
} else {
base::print.default(x, ...)
}
}
我已经阅读了一些与泛型函数及其方法有关的文档,但我无法确定问题所在,也没有找到解决方案。我查看了 setMethod()
函数和 "signature" 参数,但由于该函数很可能会在没有参数的情况下被调用,所以我看不出这有什么帮助。
两者之间的一个区别是 print.by
存在于 base
包中,而 print.list
不存在。但我无法确定这是否相关。
有关我如何开始使用此类函数定义的更多背景信息,请参见
编辑:我尝试了其他一些没有用的东西...
- 重新定义
print.default
而不是按照 here 的建议定义print.list
,但它仍然不起作用。 - 在函数定义后添加对setMethod的调用(
setMethod(f = "print", signature = "list", definition = print.list)
);仍然没有好的结果(我不太确定我得到了 "signature" 参数应该是什么。我发现关于它的文档相当混乱)。
我开始认为我可能需要对 Roxygen 做一些改动才能使其正常工作...但是具体是什么改动,我不知道。
非常感谢任何帮助。
正如源代码中的注释中所解释的(有点神秘)(可用 here) and stated (more explicitly) in (list_obj <- lapply(tobacco[,c(1,3)], freq))
一起出现)只能在显式 类,因此不适用于列表。它适用于任何打印调用,但:
devtools::install_github("dcomtois/summarytools", ref = "dev-current", quiet = TRUE)
library(summarytools)
# For best results, consider updating pander to its most recent version. You can do so
# by using devtools::install_github('rapporter/pander')
list_obj <- lapply(tobacco[,c(1,3)], freq)
list_obj # will not work since it uses auto-printing
# $gender
# For best results printing list objects with summarytools, use view(x, method =
# 'pander')
# Frequencies
# tobacco$gender
# Type: Factor
#
# Freq % Valid % Valid Cum. % Total % Total Cum.
# ----------- ------ --------- -------------- --------- --------------
# F 489 50.00 50.00 48.90 48.90
# M 489 50.00 100.00 48.90 97.80
# <NA> 22 2.20 100.00
# Total 1000 100.00 100.00 100.00 100.00
#
# $age.gr
# Frequencies
# tobacco$age.gr
# Type: Factor
#
# Freq % Valid % Valid Cum. % Total % Total Cum.
# ----------- ------ --------- -------------- --------- --------------
# 18-34 258 26.46 26.46 25.80 25.80
# 35-50 241 24.72 51.18 24.10 49.90
# 51-70 317 32.51 83.69 31.70 81.60
# 71 + 159 16.31 100.00 15.90 97.50
# <NA> 25 2.50 100.00
# Total 1000 100.00 100.00 100.00 100.00
print(list_obj) # will work
# Frequencies
# tobacco$gender
# Type: Factor
#
# Freq % Valid % Valid Cum. % Total % Total Cum.
# ----------- ------ --------- -------------- --------- --------------
# F 489 50.00 50.00 48.90 48.90
# M 489 50.00 100.00 48.90 97.80
# <NA> 22 2.20 100.00
# Total 1000 100.00 100.00 100.00 100.00
#
# tobacco$age.gr
# Type: Factor
#
# Freq % Valid % Valid Cum. % Total % Total Cum.
# ----------- ------ --------- -------------- --------- --------------
# 18-34 258 26.46 26.46 25.80 25.80
# 35-50 241 24.72 51.18 24.10 49.90
# 51-70 317 32.51 83.69 31.70 81.60
# 71 + 159 16.31 100.00 15.90 97.50
# <NA> 25 2.50 100.00
# Total 1000 100.00 100.00 100.00 100.00