R如何使用Lappy保存xts绘图

我正在与一些议会文本copra合作，并试图将一些结果可视化。因为我得到了一个项目列表，所以我尝试使用lappy来迭代我的列表

    keywords <- c("inburgering", 
             "inburgeringscursus", 
             "inburgeringsplicht", 
             "kennismigranten", 
             "gezinshereniging", 
             "gezinsvorming", 
             "Vreemdelingenwet")}

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非常感谢您的帮助。

我解决了它。您必须将其设置为打印：

print(plot(ts_adj, 
       main=keyword, 
       multi.panel = TRUE, 
       col = c("black", "black", "blue", "green", "red", "yellow"), 
       lwd=6, 
       cex = 1.5, 
       las = 1))
  dev.off()

---

似乎一切都按预期进行，也许您提供的路径有问题。如果你试图在课程中直接画出一个关键词，你会得到什么？@Cath我同意，我没有充分阅读这个问题。

lapply(keywords, function(keyword){
  disp <- dispersion(corpus_in_use, query = keyword, sAttribute = c("date", "party"))
  ts <- xts(x = disp[,c("CDA", "PVV", "VVD", "PvdA", "D66", "GL")],
            order.by = as.Date(sprintf("%s-01-01", disp[["date"]])))

  #ts_adj <- aggregate(ts, as.Date(sprintf("%s-01-01", gsub("^(\\d{4})-.*?$", "\\1", index(ts)))))
  ts_adj <- as.xts(aggregate(ts, as.Date(as.yearmon(index(ts)))))

  jpeg(
    filename = paste("/Users/simgeh/Downloads/", keyword, ".jpg", sep=""),
    width = 4000, height = 2400,
    res = NA
  )

  plot(ts_adj, 
       main=keyword, 
       multi.panel = TRUE, 
       col = c("black", "black", "blue", "green", "red", "yellow"), 
       lwd=6, 
       cex = 1.5, 
       las = 1)
  dev.off()
})

print(plot(ts_adj, 
       main=keyword, 
       multi.panel = TRUE, 
       col = c("black", "black", "blue", "green", "red", "yellow"), 
       lwd=6, 
       cex = 1.5, 
       las = 1))
  dev.off()