Should be a simple one, just can't get it to work. Basically, I have two sets of data that I want to compare. One set of data was observed at set intervals of time, and the second set of data is calculated - the problem is that the theoretical data has entries for non-integer values of t - when the observed is in single integer steps. This means that for the period of a minute in the theoretical data, I'll have several values but only a single observed value. Unfortunately, the number of theoretical values in a given range differs throughout so I feel that the best way to sort this out would be to lose a bit of accuracy and plot the observed data then somehow automatically calculate a point for each bit in time which would correspond to my theoretical. Is this possible?