make default rampchoice=:next

Author: a2ray

src/AEM_VMD_HMD.jl

@@ -100,7 +100,7 @@ function HFieldDHT(;
       minresptime = 1.e-6, # I think responses earlier than this are unstable
       calcjacobian = false,
       isdIdt = false,
-      rampchoice = :mid, # if using dIdt instead of I a choice has to be made
+      rampchoice = :next, # if using dIdt instead of I a choice has to be made
       )
     @assert all(freqs .> 0.)
     @assert freqhigh > freqlow

src/VTEM1DInversion.jl

@@ -51,7 +51,7 @@ function dBzdt(;times           = [1.],
         freqlow         = 1e-4,
         freqhigh        = 1e6,
         isdIdt          = false, 
-        rampchoice      = :mid
+        rampchoice      = :next
         )
 
     @assert size(σ)  == size(d)