Dygraph with R - 如何使用axisLabelFormatter来获取标签的字符大小？

Question

我是 R 中 Dygraph 的新手，我用它来绘制我的数据（使用 xts）。一切正常，运行良好。

但问题是：我无法使用axisLabelFormatter 使标签变得粗大和变大。这怎么可能？

此外，我可以在图表周围添加一个框架（如 x 和 y 轴的黑线）吗？

这里的图片解释了我的两个问题：click here for example image

下面是我正在尝试的代码：

library(shiny)
library(dygraphs)
library(xts)

#------Importation des données contenues dans un .csv------
setwd("C:/Users") #attention,on ne peut pas faire créer à R un dossier, il faut le créer via windows

#----Importation données de qualité d'eau
TabSMP=read.csv2(file="Analyse R/MC1_MC2_SMP.csv",sep=";",dec=".",na.strings = "#N/A")
TabSMPMC1=read.csv2(file="Analyse R/MC1_SMP.csv",sep=";",dec=".",na.strings = "#N/A")
TabSMPMC2=read.csv2(file="Analyse R/MC2_SMP.csv",sep=";",dec=".",na.strings = "#N/A")
TabMC1Manu=read.csv2(file="Analyse R/MC1_Manu.csv",sep=";",dec=".",na.strings = "#N/A")
TabMC2Manu=read.csv2(file="Analyse R/MC2_Manu.csv",sep=";",dec=".",na.strings = "#N/A")
TabMC3Manu=read.csv2(file="Analyse R/MC3_Manu.csv",sep=";",dec=".",na.strings = "#N/A")
TabMC4Manu=read.csv2(file="Analyse R/MC4_Manu.csv",sep=";",dec=".",na.strings = "#N/A")


#-----Attribution du format de date et heure à la colonne date/heure pour chaque tableau------
TabSMP$DateHeure=as.POSIXct(TabSMP$DateHeure,format="%d/%m/%Y %H:%M")
TabSMPMC1$DateHeure=as.POSIXct(TabSMP$DateHeure,format="%d/%m/%Y %H:%M")
TabSMPMC2$DateHeure=as.POSIXct(TabSMP$DateHeure,format="%d/%m/%Y %H:%M")
TabMC1Manu$DateHeure=as.POSIXct(TabMC1Manu$Date,format="%d/%m/%Y %H:%M")
TabMC2Manu$DateHeure=as.POSIXct(TabMC2Manu$Date,format="%d/%m/%Y %H:%M")
TabMC3Manu$DateHeure=as.POSIXct(TabMC3Manu$Date,format="%d/%m/%Y %H:%M")
TabMC4Manu$DateHeure=as.POSIXct(TabMC4Manu$Date,format="%d/%m/%Y %H:%M")
#TabB5Manu$DateHeure=as.POSIXct(TabB5Manu$Date,format="%d/%m/%Y %H:%M")
ls.str()# vérification des reconnaissances par R des caractères numériques, textes, dates...


TabSMPMC1_xts_Temp <- xts(TabSMP$MC1_Temp,order.by=TabSMP$DateHeure,frequency=365)
TabSMPMC2_xts_Temp <- xts(TabSMP$MC2_Temp,order.by=TabSMP$DateHeure,frequency=365)
TabMC3Manu_xts_Temp <- xts(TabMC3Manu$MC3_Temp,order.by=TabMC3Manu$DateHeure,frequency=365)
TabMC4Manu_xts_Temp <- xts(TabMC4Manu$MC4_Temp,order.by=TabMC4Manu$DateHeure,frequency = 365)

Temperature <- cbind(TabSMPMC1_xts_Temp,TabSMPMC2_xts_Temp,TabMC3Manu_xts_Temp,TabMC4Manu_xts_Temp)

dygraph(Temperature,main="Evolution de la tempértaure") %>%
        dyAxis("y", label = "°C ", valueRange = c(-1, 11)) %>%
        dySeries("..1",label="MC1_Temp",strokeWidth=1.75) %>%
        dySeries("..2",label="MC2_Temp",strokeWidth=1.75) %>%
        dySeries("..3",label="MC3_Temp",pointSize=2.5) %>%
        dySeries("..4",label="MC4_Temp",pointSize=2.5) %>%
        dyOptions(colors = c("blue","orange","pink","green")) %>%
        dyLegend(width=400) %>%
        dyEvent(DebutVidange, "Ouverture Vanne de Fond", labelLoc = "top") %>%
        dyEvent(FinVidange, "Fin Vidange", labelLoc = "top") %>%
        dyShading(from =DebutVidange, to =FinVidange, color = "#F0F9FF") %>%
        dyShading(from =DebutAssec, to =FinAssec, color = "#FFFFFF") %>%
        dyRangeSelector()

Answer 1

试试这个：

    dyAxis(
      "y",
      axisLabelFormatter = 'function(d){return d.toString().fontsize(4);}', #     makes them bigger
      axisLabelWidth = 70
    ) %>%
and change the fontsize(4) to other numbers. An for bold tage the line: axisLabelFormatter = 'function(d){return d.toString().fontsize(4).bold();}',
as:

    dygraph(Temperature,main="Evolution de la tempértaure") %>%
        dyAxis("y", label = "°C ", valueRange = c(-1, 11)) %>%
        dySeries("..1",label="MC1_Temp",strokeWidth=1.75) %>%
        dySeries("..2",label="MC2_Temp",strokeWidth=1.75) %>%
        dySeries("..3",label="MC3_Temp",pointSize=2.5) %>%
        dySeries("..4",label="MC4_Temp",pointSize=2.5) %>%
        dyOptions(colors = c("blue","orange","pink","green")) %>%
        dyLegend(width=400) %>%
        dyEvent(DebutVidange, "Ouverture Vanne de Fond", labelLoc = "top") %>%
        dyEvent(FinVidange, "Fin Vidange", labelLoc = "top") %>%
        dyShading(from =DebutVidange, to =FinVidange, color = "#F0F9FF") %>%
        dyShading(from =DebutAssec, to =FinAssec, color = "#FFFFFF") %>%
    dyAxis(
      "y",
      axisLabelFormatter = 'function(d){return d.toString().fontsize(4);}', # makes them bigger
      axisLabelWidth = 70
    ) %>%
        dyRangeSelector()

Answer 2

我也得到了 x 轴，但它是数字：2017.3 等，请注意，由于 Javascript 中 Jan-Dec 的月份为 0-11，您需要在月份中添加 1，这里：

   dyAxis(
  "x",
  # label = "Number",
  axisLabelFormatter = 'function(d){ var month = (d.getMonth() +1).toString().fontsize(3) ;var year = d.getFullYear().toString().fontsize(3); return  year + "."+ month}', ## + 1 since months jan-dec are 0-11 in Javascript
  axisLabelFontSize = 20,
  axisLabelWidth = 70 ## gets them apart, but not bigger
) %>%