Making individual value charts
May be someone can help me out. I have searched several days for a way to do individual value plots. I have tables in gnumeric and libreoffice calc. The data has several columns with numerical values. I'd like all the values be presented as dots on the chart (columns a, b, c, etc. next to each other) and a line to indicate the mean for each column. How can I achieve this?
I'd like to achieve something like these google hits:
The aim is to show variability behind the mean.
Thanks in advance!