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I want to graph from one date to another date and i only partial data now
For example, i have data points for each month from jan 2010 to march 2010 but i want a line graph with a data point for each month for all of 2010.
i basically want to take the slope of the current points and create new points for each future month of 2010 to fill in for the graph.
It sounds like you’re looking for Linear interpolation.
Be careful, however, of extrapolation beyond the boundaries of the data set you already have. For example, having three data points for the first three months of the year does not imply anything useful about November.