What is DiffEqBase.NoRootFind?

New to Julia
,
1

Hello,
I have inherited some code to solve ODE and there is a line containing:

julia> make_callback(t, v) = PresetTimeCallback([t], (i) -> ( i.u[end] += v))
make_callback (generic function with 1 method)

julia> no_affect!(integrator) = nothing
no_affect! (generic function with 1 method)

julia> condition_1(u, t, integrator) = u[1]-1
condition_1 (generic function with 1 method)

julia> affect_1!(integrator) = integrator.u[1] = 0.0
affect_1! (generic function with 1 method)

julia> ContinuousCallback(condition_1, no_affect!, affect_1!, 
           rootfind = DiffEqBase.NoRootFind)
ERROR: UndefVarError: NoRootFind not defined
Stacktrace:
 [1] getproperty(x::Module, f::Symbol)
   @ Base ./Base.jl:31
 [2] top-level scope
   @ none:1

I have loaded using DifferentialEquations, DiffEqBase but, given the error, it is probably not enough.
What package contains NoRootFind?
Thank you

2

SciMLBase.NoRootFind, as mentioned in the documentation.

https://docs.sciml.ai/DiffEqDocs/stable/features/callback_functions/#ContinuousCallback

But you probably shouldn’t be using that in most cases. In most cases, if you’re disabling rootfinding then you probably want to be using a DiscreteCallback.

3

which is what i was using before. Thank you, I’ll try to fix the code. Cheers