It sounds like you have a block in your model with a continuous sample time specified (i.e., a 0 in the sample time field).
Daniel wrote: > > > I am trying to use the mean block to calculate a running average of my > input. I currently take my input from the workspace in the form of an > array, with the first column being the time and simply ascending > integers and the second column being the data. I connect the "from > workspace" block to the mean and then sent the result to the scope. The > configuration parameters are for fixed step time and a disrete solver. > > However, when I try to run the sim, I get an error saying that all > sample times must be discrete. Aren't they already? What am I doing wrong? > > Thanks > D