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Thread ID: 95019 2008-11-20 22:18:00 excel chart question globe (11482) Press F1
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721737 2008-11-20 22:18:00 i have a series of data values taken at different dates. I have information for individuals taken every 6 weeks or so in different cycles (ie number 1 is taken on week 1 and week 6, sample 2 is taken week 2 and week 7 etc etc).

From this i am trying to produce a graph showing the values vs time but cannot link the points together via interpolation. Only using trendlines which does not give me what I am after.

Any advice or suggestions ?
globe (11482)
721738 2008-11-21 21:06:00 I think the one you are after is the XY scatter plot and just choose the one that has interconnected lines (i.e interpolates!). This graph type doesn't assume a linearly increasing "X" series like a line chart does (as you've found out). So your data should look something like:

Weeks Value
1 123
2 234
7 456

Note that the weeks is a number not text like "Week 1". If you want it to display like that then format the cells choose custom and put in <"Week" #> without the angle brackets.

HTH
Dave
odyssey (4613)
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