更改 trelliscope 包图中的格式 - Zillow Data

Question

所以我刚刚在 R 中安装了一个名为 trelliscope 的包。这很棒，但我在格式化时遇到了问题。它相当新，没有太多关于它的文档，想听听一些意见。所以我生成了以下代码（如果您完全按照代码进行操作，您将能够重现我所做的）。地块上的默认点color/format不合我意：

install.packages("devtools") # if not installed
devtools::install_github("tesseradata/datadr")
devtools::install_github("tesseradata/trelliscope")
devtools::install_github("hafen/housingData")   
library(housingData)
library(datadr)
library(trelliscope)    

conn <- vdbConn("vdb", name = "Zillow") 
byCounty <- divide(housing,
               by = c("county", "state"))
byCounty

# look at a subset of byCounty
byCounty[[1]]

timePanel <- function(x)
  xyplot(medListPriceSqft + medSoldPriceSqft ~ time,
     data = x, auto.key = TRUE, ylab = "Price / Sq. Ft.")
timePanel

priceCog <- function(x) {
  zillowString <- gsub(" ", "-", do.call(paste, getSplitVars(x)))
  list(
    slope = cog(coef(lm(medListPriceSqft ~ time, data = x))[2],
            desc = "list price slope"),
    meanList = cogMean(x$medListPriceSqft),
    meanSold = cogMean(x$medSoldPriceSqft),
    nObs = cog(length(which(!is.na(x$medListPriceSqft))),
           desc = "number of non-NA list prices"),
    zillowHref = cogHref(
      sprintf("http://www.zillow.com/homes/%s_rb/", zillowString),
      desc = "zillow link")
  )
}
priceCog(byCounty[[1]]$value)

# create the display and add to vdb
makeDisplay(byCounty,
            name = "list_sold_vs_time_quickstart",
            desc = "List and sold price over time",
            panelFn = timePanel,
            cogFn = priceCog,
            width = 400, height = 400,
            lims = list(x = "same"))
view()

在运行这段代码之后，有人可以帮我确定如何更改绘图的设置，例如点的颜色、点大小等，只是为了让它看起来更好吗？我真的只是在寻找一种编码结构来更改格式，然后如果我能在代码中找到一个好的起点，我可以自己进入细节。

谢谢！

Answer 1

您可以在 timePanel 函数中添加磅值和颜色参数。例如，尝试：

timePanel <- function(x)
  xyplot(medListPriceSqft + medSoldPriceSqft ~ time,
     data = x, auto.key = TRUE, ylab = "Price / Sq. Ft.",
     par.settings = list(superpose.symbol = list(
         cex = c(1,2), col =c("black", "red"))))
timePanel

更改 trelliscope 包图中的格式 - Zillow Data

Change formatting in trelliscope package plots - Zillow Data

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