R删除Wordcloud中单词之间的距离

我有以下数据帧：

df <- data.frame(word = c("text1","text2","text3","text3","text3","text3","text3","text3","text3","text3","text3","text3","text3","text3",
                          "text3","text3","text3","text3","text3","text3"), 
                 freq = c(6500,6400,4500,4400,4000,3800,3300,2900,2300,1200,900,2496,5203,3507,724,1047,725,5739,3927,4085),
                 stringsAsFactors = FALSE)

这里没问题

R version 3.4.1 (2017-06-30)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 Service Pack 1


other attached packages:
wordcloud_2.5 

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来自R-Tag信息：“R是一种免费、开源的编程语言和软件环境，用于统计计算、生物信息学、可视化和通用计算。为您的问题提供最少、可复制、具有代表性的示例。使用dput（）对于数据，请指定带有库调用的所有非基本包。不要为数据或代码嵌入图片，请使用缩进的代码块。对于统计问题，请使用。“有什么进展吗？谢谢您的建议@AndreElrico。”。我添加了使用过的软件包。不幸的是，您的链接无法帮助解决此问题。它不会删除单词之间的大空格。嗯，这可能取决于屏幕大小吗？我现在在全新的R会话和项目中尝试了很多次，但我总是有同样的问题。。。你用wordcloud_2.5软件包做了什么？

library(tm)
library(RColorBrewer)
library(wordcloud)

R version 3.4.1 (2017-06-30)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 Service Pack 1


other attached packages:
wordcloud_2.5