trend line does not appear
Occassionally, when I try to add a trend line to a data series the line is
not displayed on the graph, but a lable appears in the legned box. Any ideas?
At present I want to add a weighted average trend line and so I am having to
do it the long way around (i.e., calculate the average values in the
worksheet and then plot them), but this is time consuming.
Any help would be appreciated.
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