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RSS Feed for Wolfram Community showing questions from all groups sorted by newest repliesCan examples for training be shown in the Neural Network repository?
http://community.wolfram.com/groups/-/m/t/1413864
Often I want to train the neural networks on the Neural Network Repository, but when I download the ConstructionNotebook, they almost always just say "Training: performed separately", which is useless to me. I understand that the actual training (typically on huge datasets) is not trivial, but I would really love an example of the data I need to train a network and any extra parameters I need to pass to NetTrain. The network I'm looking at at the moment is the Very Deep Net for Super-Resolution.Carl Lange2018-08-19T10:37:51ZWhy NicholsGridLines in Nichols Plot are different than Matlab
http://community.wolfram.com/groups/-/m/t/1402189
The sensitivity lines(NicholsGridLines) in NicholsPlot in Mathematica drawn differently from what is drawn in Matlab and what I learned in lectures in control systems.
Here we can see the function P[s]=-15 (1+0.2 s/3+(s/3)^2)/(s(1+s/2)(1-1.6 s/5+(s/5)^2)(1+0.2 s/7+(s/7)^2)) which by wolfram is not Entering the 3dB sensitivity loop (just below (Pi,0)) and by Matlab it does. Wolfram Mathematica are drawing the Nichols Grid Lines as a reflection with respect to the x axis compared to what i learned at control system and Matlab for some reason. in addition, Mathematica draws the plot around the phase pi and Matlab around -Pi, why these differences?
![the sensitivity lines(NicholsGridLines) in NicholsPlot][1]
Is there a option for flipping these grid-lines somehow? Or can someone explain why it is drawn as shown?
The code I used to draw the plot:
NicholsPlot[P[s],
GridLines -> {Range[-2 \[Pi], 2 \[Pi], 0.5 \[Pi]], Automatic},
StabilityMargins -> True, PlotRange -> {{0, 2 \[Pi]}, {-50, 60}},
NicholsGridLines -> {{ -10^((3/20)), -10^((6/20))} ,},
ScalingFunctions -> {"Radian", Automatic},
Ticks -> {Range[-2 \[Pi], 2 \[Pi], \[Pi]/2], Automatic}]
Dynamic[MousePosition["Graphics"]]
[1]: http://community.wolfram.com//c/portal/getImageAttachment?filename=%D7%AA%D7%9E%D7%95%D7%A0%D7%94%D7%9C%D7%9C%D7%90%D7%A9%D7%9D.png&userId=1402172Eliav Louski2018-08-11T01:22:37Z