I am new to R. I have discrete data. I want to plot a chart (barchart or histogram) indicating for each existing value (in my data) the normalized number of occurrences (actual count for that value divided by total records). For the moment I have figured out to use:I am new to R. I have discrete data. I want to
阅读背景：
如何在R中绘制条形图或直方图，表明概率（离散数据）？
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