time values must be monotonically non-decreasing

Hi, I have a mat file containing all my gas readings and need it for my simulation. However after I uploaded it onto my from file block and run, there is an error saying "Time values must be monotonically non-decreasing". What does this mean? As I have seen some mat files with data values that does not linearly decrease or increase but can still successfully run.

Answer 1

[Adam]

Monotonically non-decreasing means that they must be in a non-decreasing order - i.e. values never increase between one reading and the next. It does not matter whether the increase is linear, exponential or arbitrary.

Since it doesn't say "strictly monotonically non-decreasing" or "monotonically increasing" equal consecutive values are allowed.