如何在 R mschart 中调整绘图区域的大小 [英] how to resize plot area in R mschart

问题描述

我正在使用 R 包 mschart 将 MS 图表填充到 PPT 中.我使用函数 ph_with_chart_at 添加了将多个图表添加到一张幻灯片中以定义 ppt 的位置.但是，地块面积太小了.

I'm using R package mschart to populate MS chart into PPT. I have added add multiple charts into one slide using the function ph_with_chart_at to define the location of ppt. However, the plot area is too small.

如何调整绘图大小?

示例:

这是示例代码，当你打开ppt时，我想放大绘图区域的大小或控制y轴之间的空间40%、50%、60%...

here is the sample code, when you open the ppt, I want to enlarge the size the plot area or control the space between axis y 40%, 50%,60%...

library(officer)
library(mschart)
library(dplyr)

data <- data.frame(Name=c("a","a","a","a","b","b","b","b"),
                   wave_id=c("2017Q1","2017Q2","2017Q3","2017Q4","2017Q1","2017Q2","2017Q3","2017Q4"),
pct=c(0.68,0.71,0.70,0.72,0.57,0.57,0.57,0.58))

data1 <- data%>%
  ms_linechart(x="wave_id",y="pct",group="Name")%>%
  chart_labels(title=NULL,xlab="",ylab="")%>%
  chart_ax_y(limit_min = 0.4,limit=0.8,
             num_fmt='0%%',major_tick_mark="none",minor_tick_mark="none")

data1_theme<- mschart_theme(
  legend_text = fp_text(font.size=8),
  axis_text = fp_text(font.size=8),
  legend_position = "r",
  grid_major_line=fp_border(width=))

pptsdata1 <- set_theme(data1,data1_theme)


doc <- read_pptx()

doc <-doc%>% 
  add_slide(layout = "Title and Content", master = "Office Theme")%>%
  ph_with_chart_at(chart=pptsdata1,left=1,top=2,height=1.55,width=8)

print(doc, target = "my_plot.pptx")

如果您查看输出的图形，您可以看到该图只占用了少量的图区域，图周围还留有大量空白:

If you look at the outputted graph, you can see that the plot only takes up a small amount of the plot area, with a lot of white space left around the plot:

推荐答案

改变绘图大小

您可以在 ph_with_chart_at 函数中使用 width 和 height 参数分别指定输出宽度和高度，而 left 和 top 参数控制幻灯片中的位置.例如 ph_with_chart_at(chart=pptsdata1, left=2, top=1, height=3, width=8)

You can use the width and height arguments within the ph_with_chart_at function to specify the output width and height respectively, while the left and top arguments control the position in the slide. For example ph_with_chart_at(chart=pptsdata1, left=2, top=1, height=3, width=8)

编辑图边距的大小(即图周围的空白)

当您试图隐藏轴的标题时出现问题.由于似乎没有办法完全抑制它们，我们:

You problem arises as you are trying to hide the titles of the axes. As there appears no way to suppres them completely, what we:

1. 用单个空格替换标签，即 ""
2. 将轴标题的字体大小更改为axis_title = fp_text(font.size=1)

更新您的示例:

library(officer)
library(mschart)
library(dplyr)

data <- data.frame(Name=c("a","a","a","a","b","b","b","b"),
                   wave_id=c("2017Q1","2017Q2","2017Q3","2017Q4","2017Q1","2017Q2","2017Q3","2017Q4"),
pct=c(0.68,0.71,0.70,0.72,0.57,0.57,0.57,0.58))

data1 <- data%>%
  ms_linechart(x="wave_id",y="pct",group="Name")%>%
  chart_labels(title=NULL,xlab=" ",ylab=" ")%>%
  chart_ax_y(limit_min = 0.4,limit=0.8,
             num_fmt='0%%',major_tick_mark="none",minor_tick_mark="none")

data1_theme<- mschart_theme(
  axis_title = fp_text(font.size=1),
  legend_position = "r",
  grid_major_line=fp_border(width=))

pptsdata1 <- set_theme(data1, data1_theme)

doc <- read_pptx()

doc <-doc%>% 
  add_slide(layout = "Title and Content", master = "Office Theme")%>%
  ph_with_chart_at(chart=pptsdata1, left=1,  top=1,  height=3,  width=8)

print(doc, target = "my_plot.pptx")

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