Dear All R users:
I hope that this message finds all of you well.
Currently, I am teaching an undergraduate course in statistics.
If possible, Could you please help me out how to add plus/minus 1 standard
deviation added to each bar into R cluster bar chart.
You can use the following artificial data.
data cat 1 cat 2
23 1 1
45 1 1
34 1 1
5 1 1
32 1 1
44 1 1
3 2 1
1 2 1
2 2 1
3 2 1
4 2 1
5 1 2
6 1 2
7 1 2
8 1 2
544 2 2
78 2 2
543 2 2
34 2 2
89 2 2
9 1 3
43 1 3
23 1 3
45 1 3
7 1 3
5 1 3
7 1 3
6 2 3
867 2 3
3 2 3
4 2 3
5 2 3
6 2 3
7 2 3
8 2 3
9 2 3
I need to create a bar chart for the mean of data column for each category. I
know how to create the cluster bar chart. But I need your help with how to add
plus/minus 1 standard deviation into each bar.
Thank you so much for your helps and for your attention to this matter, and I
look forward to hearing from you.
Regards,
zanaty
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