我在我的ls上有几个ggplots作为对象。我想将它们保存为单独的文件（尽管我也有兴趣知道如何将它们全部保存在1个大文件中）。我已阅读此：问题和，但我似乎无法调整代码。我也尝试将它们全部绘制在一个大文件中，如 do.call错误（grid.arrange，plots2 [[i]]）：第二个参数必须是一个列表。
这是我到目前为止所尝试的：
> ls（）＃我的ls上的对象列表。所有的p *都是我想要保存的ggplots。 [1]alldatdat2dat3datadlookdlook2dlook3ilook2mdfx [12] orderpp1p10p11p12p13p14p15p16 [23]p17p18p19p2 p3p4p5p6p7p8p9 >对象< -ls（）> plot_objects [14:30] > pre pre pre pre pre pre pre pre pre pre pre pre pre $ p $％ p5p6p7p8p9 > class（plot） [1]character plots2< -as.list（plots）＃转换为列表。 library（gridExtra）#Code建议创建一个pdf文件。 pdf（test.pdf，onefile = TRUE） for（i seq（length（plots2）））{ do.call（grid.arrange，plots2 [ i]]）} dev.off（）解决方案
然后您可以简单地逐页打印它们，
pdf（all.pdf）不可见（lapply（l，print）） dev.off（）或者为每个文件保存一个图，
无形（mapply（ggsave，file = paste0（plot-，names（l），.pdf），plot = l））或将它们全部放在一个页面中，
ggsave（arrange.pdf ，arrangeGrob（grobs = l））或者将它们排列在多个页面中2x2，
ggsave（arrange2x2.pdf，marrangeGrob（grobs = l，nrow = 2，ncol = 2）） 等。（未经测试）
/ p>I have several ggplots as objects on my ls. I want to save them as separate files (although I would also be interested to know how to save them all under 1 big file). I have read this: question and question but I can't seem to adapt the code. I also tried to plot them all in one big file as suggested here but do get this error: Error in do.call("grid.arrange", plots2[[i]]) : second argument must be a list. There's something that I am missing in getting all the ggplots in one list.
This is what I've tried so far:
> ls() #List of objects on my ls. All the p* are my ggplots that I want to save. [1] "all" "dat" "dat2" "dat3" "data" "dlook" "dlook2" "dlook3" "i" "look2" "mdfx" [12] "objects" "order" "p" "p1" "p10" "p11" "p12" "p13" "p14" "p15" "p16" [23] "p17" "p18" "p19" "p2" "p3" "p4" "p5" "p6" "p7" "p8" "p9" > objects<-ls() > plot<-objects[14:30] > plots [1] "p1" "p10" "p11" "p12" "p13" "p14" "p15" "p16" "p17" "p18" "p19" "p2" "p3" "p4" "p5" "p6" "p7" "p8" "p9" > class(plots) [1] "character" plots2<-as.list(plots)#Transform into a list. library(gridExtra) #Code suggested to create one pdf file. pdf("test.pdf", onefile = TRUE) for (i in seq(length(plots2))) { do.call("grid.arrange", plots2[[i]]) } dev.off()解决方案
it's best to have your plots in a list
l = mget(plots)Then you can simply print them page-by-page,
pdf("all.pdf") invisible(lapply(l, print)) dev.off()or save one plot per file,
invisible(mapply(ggsave, file=paste0("plot-", names(l), ".pdf"), plot=l))or arrange them all in one page,
ggsave("arrange.pdf", arrangeGrob(grobs = l))or arrange them 2x2 in multiple pages,
ggsave("arrange2x2.pdf", marrangeGrob(grobs = l, nrow=2, ncol=2))etc.
(untested)
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