在R shinny中增加单词云图的面积

我是新来的R闪亮和字云。我正在创建一个wordcloud,但由于某些原因,我无法更改绘图区域。我尝试更改height和width的值(在plotOutput中),它所做的只是改变绘图的位置。我的word云用户界面代码是:

tabPanel("Word Cloud",
         sidebarLayout(
             sidebarPanel(
                 
                 sliderInput("numberInput1", "Minimum Frequency:", min=1, max=20, 
                             value=9),
                 sliderInput("numberInput2", "Maximum Number of Words:", min=1, max=500, 
                             value=120),
                 
             ),
             mainPanel(
                 plotOutput("WordCloudPlot",  width = "700px", height="700px")
             )
         )
)

我的word云服务器代码是:

        wordcloud_rep <- repeatable(wordcloud)
        output$WordCloudPlot <- renderPlot({
        wordcloud_rep(names(v), v, scale=c(4,0.6),
                      min.freq = input$numberInput1, max.words=input$numberInput2,
                      colors=brewer.pal(8, "Dark2"))
        })

情节看起来很小,像这样:

谢谢你的帮助!