Search found 5820 matches

by ted
Thu Nov 12, 2020 4:53 pm
Forum: NEURON hacks
Topic: Flushing Output to Disk
Replies: 1
Views: 212

Re: Flushing Output to Disk

Look in the Hot tips area of the Forum for Simulations that generate lots of data
by ted
Wed Nov 04, 2020 5:46 pm
Forum: Modeling networks
Topic: fsyn()
Replies: 2
Views: 245

Re: fsyn()

Aha, I violated the principle of RTFM. Sure enough, searching the Programmers' Reference for fsyn turns up a section on "Obsolete Stimuli" that mentions the (obsolete) function prstim() which is described as "obsolete. Print the info about fstim, fclamp, and fsyn". My own dusty p...
by ted
Wed Nov 04, 2020 5:18 pm
Forum: NEURON hacks
Topic: Implementing Superposition to "custom" waveforms in NMODL
Replies: 6
Views: 329

Re: Implementing Superposition to "custom" waveforms in NMODL

Sounds like you have take on a challenging task. I'm fresh out of ideas for how to accomplish it.
by ted
Wed Nov 04, 2020 5:09 pm
Forum: Modeling networks
Topic: fsyn()
Replies: 2
Views: 245

Re: fsyn()

Never heard of fsyn(). Doubtless some user-written function. Is it defined in any of the files that are part of that model entry where you found it?
by ted
Tue Nov 03, 2020 9:51 pm
Forum: NEURON Announcements
Topic: NEURON Virtual Course
Replies: 0
Views: 189

NEURON Virtual Course

What: The one-day NEURON course presented as a series of short webinars. When: The webinars will run from 1 PM to 3 PM New York time on Monday and Tuesday, Nov. 16 and 17, and on Monday and Tuesday, Nov. 23 and 24, 2020 Speakers: Ted Carnevale and Robert McDougal Registration is on a first-come, fi...
by ted
Mon Nov 02, 2020 10:27 pm
Forum: NEURON hacks
Topic: Implementing Superposition to "custom" waveforms in NMODL
Replies: 6
Views: 329

Re: Implementing Superposition to "custom" waveforms in NMODL

For this particular problem, what do you want your array of precalculated values to drive? Probability of transmitter release as a function of time? Transmitter concentration in the synaptic cleft? The detailed time course of synaptic conductance? If none of these, then what? The use of the array to...
by ted
Mon Nov 02, 2020 9:12 am
Forum: NEURON hacks
Topic: Implementing Superposition to "custom" waveforms in NMODL
Replies: 6
Views: 329

Re: Implementing Superposition to "custom" waveforms in NMODL

I am unsure exactly how NEURON maintains this superposition of waveforms. I assume it is something that happens "behind the scenes" and is hidden from the NMODL level. There is no hidden magic. It arises naturally from the numerical integration of the differential equation(s) that govern ...
by ted
Wed Oct 28, 2020 12:44 pm
Forum: Getting started
Topic: Compiling Mod Files on Catalina
Replies: 8
Views: 566

Re: Compiling Mod Files on Catalina

Thank you for reporting how you fixed the problem.

So "Command Line Tools for XCode 12", which you installed first, isn't the same as "Xcode 12.1", which fixed the problem?
by ted
Mon Oct 26, 2020 9:47 am
Forum: Other questions
Topic: Neurolucida text morphology changes when using import3D
Replies: 3
Views: 295

Re: Neurolucida text morphology changes when using import3D

Yes, there are many lessons to learn from this, like how to write code that is difficult for anyone else to use.
by ted
Thu Oct 22, 2020 11:00 am
Forum: Other questions
Topic: Neurolucida text morphology changes when using import3D
Replies: 3
Views: 295

Re: Neurolucida text morphology changes when using import3D

I'll have to reproduce this for myself. Please send the necessary morphometric data file(s) to ted dot carnevale at yale dot edu
by ted
Thu Oct 22, 2020 10:58 am
Forum: Other questions
Topic: Some questions on plot [Ca2+]i vs. distance
Replies: 2
Views: 307

Re: Some questions on plot [Ca2+]i vs. distance

Read the Programmer's Reference documentation of the RangeVarPlot class https://neuronsimulator.github.io/nrn/new_doc/visualization/rvarplt.html#rangevarplot . First, some definitions. Parent section and child section: The statement connect foo, bar connects section foo to section bar. bar is the pa...
by ted
Mon Oct 12, 2020 4:55 pm
Forum: UNIX/Linux
Topic: Installing on Ubuntu 20.04 (GUI not working)
Replies: 7
Views: 778

Re: Installing on Ubuntu 20.04 (GUI not working)

Under Mint 19.3 (a Debian/Ubuntu variant) I did a fresh install of NEURON 8.x by executing pip3 install neuron as an ordinary user. However, when I tried checking a mod file for units inconsistencies, I found that the command modlunit failed. So did idraw but nrniv and nrnivmodl both worked. modluni...
by ted
Tue Oct 06, 2020 2:37 pm
Forum: UNIX/Linux
Topic: Installing on Ubuntu 20.04 (GUI not working)
Replies: 7
Views: 778

Re: Installing on Ubuntu 20.04 (GUI not working)

If you want to load the GUI,
from neuron import h, gui

or
from neuron import h
h.load_file('nrngui.hoc')

Does that take care of the problem?
by ted
Tue Oct 06, 2020 11:17 am
Forum: UNIX/Linux
Topic: Installing on Ubuntu 20.04 (GUI not working)
Replies: 7
Views: 778

Re: Installing on Ubuntu 20.04 (GUI not working)

I then installed using tar.gz file of 7.6.7 version
So what's the current status? Does 7.6.7 work?
by ted
Sun Oct 04, 2020 11:23 am
Forum: UNIX/Linux
Topic: Installing on Ubuntu 20.04 (GUI not working)
Replies: 7
Views: 778

Re: Installing on Ubuntu 20.04 (GUI not working)

After installing the package
Did you do
sudo pip3 install neuron
or did you install from a .deb package?
If you used a .deb package, from where did you get it?