calc charting issue

I have a small spreadsheet 5x12 elements and the numeric content data
is missing for some cells. Their contents are given as ND for No Data. I
want to chart these 5 rows and at first thought I'd just set them to
zero. The range on y-axis values is about from 5 to 15. But with zeros
the chart line takes a dive to the x-axis then back up.

I think a better visualisation would be for the graph lines to be
discontinuous where no data exists, precluding zeroing or smoothing
over the gap (usually only one missing datum) I don't see a handy way
to do this, does someone with more experience see how? I'll read
instructions if pointed to them.

Thanks,

Dave

I have a small spreadsheet 5x12 elements and the numeric content data is missing for some cells. Their contents are given as ND for No Data. I want to chart these 5 rows and at first thought I'd just set them to zero. The range on y-axis values is about from 5 to 15. But with zeros the chart line takes a dive to the x-axis then back up.

I think a better visualisation would be for the graph lines to be discontinuous where no data exists, precluding zeroing or smoothing over the gap (usually only one missing datum) I don't see a handy way
to do this, does someone with more experience see how? I'll read instructions if pointed to them.

Yes: if you set your cells to zero, they will indeed be taken for zero and plotted as such. You need to have your missing data cells genuinely empty. I'm surprised if that doesn't give you what you require by default. If not, right-click on one of the points in a relevant line in the chart and select Format Data Series... | Options

Plot Options. Set "Plot missing values" to "Leave gap" (or as preferred).

I trust this helps.

Brian Barker

yes it did, I've double checked and now get the results I want. Thanks
very much!

d