Smartsheet has great visual graphs, one problem however is it does not have continuous trendlines (like Excel - but this isn't perfect either). So If I have 12 months and say 4 data points, I end up with a part-line & scatter plot; instead of the line graph I selected (does not show the full line or full trend).
Ideally I would have 3 line graph sub-options:
1. Include 0 / null values in line [eg line goes to zero for each 0 / null value]
2. Exclude 0/ null values - no line [eg reverts to scatter graph]
3. Exclude 0/null values - with line [eg line ignores 0 value, going direct from say '4' in Apr to '4.5 ' in Sep]