Val Brown
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Posts posted by Val Brown
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QUOTE(neB @ Mar 7 2008, 09:17 AM)
Close enough.And the "Groaner Award" goes to Val!
Complete answer is "Only one, but it takes a long time and it has to want to be normal."
Ben
Being a psychologist -- and one who developed and teaches Solution Oriented Rapid Transformation -- I can tell you it doesn't have to take a long time. Perhaps though, with psychiatrists it does take longer....But the bigger issue is: why would you want to be normal? Why not just be you?
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QUOTE(neB @ Mar 7 2008, 06:32 AM)
While I am waiting for my better half to advise on CRELF's punch line I'll post a real "groaner" adapter for his "green cardigan clad shoosh-monster".Q: How many psychiatric trained information scientist does it take to normalize a database?
A: ?
Ben
Only one, but it has to want to be normal.
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QUOTE(Donald @ Mar 3 2008, 01:49 AM)
All 'VISTA' feeback is wellcome. At the moment I experience some minor problems with load/saving preferences under VISTA with application that were developed and designed for Win2000 and XP.If your app tries to save files within the Vista version of "Program Files" then you will have a problem, unless the program (or at least that process) runs as an administrator.
There are several work arounds, including altering your code to save such files to the appropriate "Program Data" folder(s); however, that was a bit cumbersome for me for various reasons. The solution I came up with was to create a new root folder for my application instead. That really makes a number of things easier and works for my situation, which is a bit different from what others may encounter.
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QUOTE(alfa @ Feb 29 2008, 12:01 AM)
Val Brown,doing only EEG is OK.
Working in this area is not easy, but here is the future.
Yes, that's why I've been involved in evolving the necessary technology over the last 35 years. For those who are interested, a number of my presentations on these topics over the years can be found on the iSNR website. I alos wrote an article for the Journal of Neurotherapy (in 95 I believe it was), which can serve as a bit of a historial reference. Again for those who are interested.
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I don't know if this is the kind of answer you want but I've been developing in/on Vista since the summer and have had no real problems with it. I deploy my built EXEs to both XP and Vista systems. On my MacBook Pro development system I use VM Ware Fusion to run XP (not Vista yet) and have only had one problem with that. My application uses a serial based instrument and it's not possible to configure the MBP using Fusion to read that serial device consistently enough to not throw errors. If I run XP under Boot Camp there is no problem.
Again, I don't know if this information is at all helpful but I've put it here FWIW.
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QUOTE(Phillip Brooks @ Feb 28 2008, 10:26 AM)
Subjected is, I think, the exactly correctly term... All in all I'm pretty certain that I'd rather be CRELF-ed... ;-)
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QUOTE(alfa @ Feb 27 2008, 11:27 PM)
http://lavag.org/old_files/monthly_02_2008/post-4568-1204212119.jpg' target="_blank">
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QUOTE(alfa @ Feb 26 2008, 08:47 AM)
No, I didn't read it, but I will read a bit.Do you work there?
If you don't work there I'll tell you what I'm thinking about this kind of companies.
I don't "work there". My wife and I founded Zengar and I developed the software in LV. I'm somewhat intrigued by your thinking that we are one of "this kind of companies" when you haven't even read our website, don't know me, don't know our software and don't know the field of neurofeedback well enough to know that your understanding of EEG is at least 6 decades out of date!
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QUOTE(alfa @ Feb 26 2008, 03:19 AM)
Alfa, I'm just wondering if you read the contents of the http://www.zengar.com' target="_blank">www.zengar.com website?
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QUOTE(rpursley @ Feb 20 2008, 01:06 PM)
The Time node returns the same value as the Tick Count (ms) function. It is the current value of the millisecond timer. This is a free running timer that has a max value of (2^32)-1 and then resets.Yes, that's certainly what it seems to be doing. It would be a nice feature to have a "real time" node also so that one could derive a "real" time stamp without having to include additional code at that point.
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I'm trying to use the Time node inside one of the Events of an Event Structure and I'm getting what to me seem to be odd results. If I could figure out how to post an image from the snipping tool I'd include it but all I'm doing is:
1. Right click on the Time Node to create an indicator
2. Connect the To Time Stamp function to the Time Node
3. Right click on the To Time Stamp function to create an indicator
When I run my VI and trigger the event I see a numeric value in the indicator and a time stamp in the time stamp indicator but the year is 1904.
The numeric value is 2123678
The time stamp value is 6:54:38.000 AM 1/25/1904
On the other hand, in the same event case, using the Get Date/Time in Seconds function gives 12:25:56.188 PM 2/20/2008
so what am I doing wrong?
BTW, I'm using 8.5.
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QUOTE(alfa @ Jan 26 2008, 12:58 AM)
For few:Alpha waves are electromagnetic oscillations in the frequency range of 8–12 Hz arising from synchronous and coherent (in phase / constructive) electrical activity of thalamic pacemaker cells in the human brain.For the majority:Beta wave, or beta rhythm, is the term used to designate the frequency range of brain activity above 12 Hz (12 transitions or cycles per second). Beta states are the states associated with normal waking consciousness. Low amplitude beta waves with multiple and varying frequencies are often associated with active, busy, or anxious thinking and active concentration. Rhythmic beta with a dominant set of frequencies is associated with various pathologies and drug effects. For instance, beta activity can be accentuated by sedative-hypnotic drugs such as benzodiazepines or barbiturates.[Beta wave, or beta rhythm, is the term used to designate the frequency range of brain activity above 12 Hz (12 transitions or cycles per second). Beta states are the states associated with normal waking consciousness. Low amplitude beta waves with multiple and varying frequencies are often associated with active, busy, or anxious thinking and active concentration. Rhythmic beta with a dominant set of frequencies is associated with various pathologies and drug effects. For instance, beta activity can be accentuated by sedative-hypnotic drugs such as benzodiazepines or barbiturates.
Actually you're quite a bit out of date in delineating EEG activity in those two terms. You might want to look at the references I've posted at www.zengar.com, esp looking at the Correlates of Consciousness chart.
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QUOTE(jlokanis @ Jan 24 2008, 10:39 AM)
There are many things about .NET in LabVIEW that are slow.
Hopefully NI will put some effort into fixing this some day. But, there are work arounds. If you go look at Brian Tyler's old blog when he was at NI, there are a few good tricks for moving large data sets between .NET and LabVIEW. I have used these tricks to make a SQL interface via .NET that is 10x faster than the NI toolkit. Unfortunatly it does require writing a little C# code (but just a little 
).Maybe if we all leaned on NI to improve their .NET overhead, things would get better.
or perhaps we could lean on NI to improve the DCT. That way we could all use the SAME interface that was directly from NI instead of having twenty different ways to implement the same functionality.
I presonally hope to NEVER use .NET, C# or C++ in my project. Pure LV makes my life much, much simpler. But, then again, I am focussed on one major project and supporting it as an individual developer so my needs are likely different from others on this forum.
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QUOTE(Aristos Queue @ Dec 19 2007, 05:01 PM)
That's my standard advice for any unreleased, undocumented, unsupported aspect of LabVIEW. But people have been very successful using these things anyway. It's a lot like getting medical certification for a LabVIEW program. NI doesn't have LV itself certified for use in medical equipment, and we don't (to the best of my knowledge) help a customer get that certification for their VI hierarchy. But some customers have gotten a particular hierarchy certified. If you can make it work, then use it. But it isn't officially supported, and your AEs won't generally even know about it, and they won't find any documentation about it in their database -- it's something only an R&D programmer or a hacker user would be able to help you with.READ THIS POST FOR MORE DETAILS: http://forums.lavag.org/VI-Scripting-Readme-First-t1207.html
Understood and, in general, I agree absolutely with this. I greatly prefer to stick with processes, etc that AEs can support but can also bump up to R&D as needed.
That having been said, I'm still using the legacy serial i/o functions so....I don't even follow my own advice on everything!
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QUOTE(Aristos Queue @ Dec 19 2007, 03:28 PM)
And, in fact, without the OpenG tools, you cannot add it to the palettes. This is a rusty nail of LabVIEW and was definitely never intended to be exposed to end users. But end users find it useful and worm their way into all LV's nooks and crannies. I've had to start hiding easter eggs at the extreme edges of things just to keep them from being found quickly...So the short answer is: No, there is no easy way without OpenG.
Are you also suggesting by this that Open VI Object Refence ought not to be used???
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QUOTE(Aitor Solar @ Dec 19 2007, 02:58 AM)
Well, the "Open VI Object Reference" function is inside LabVIEW, though is not shown in the palette. That OpenG package "just" gives an easy way of placing it in the block diagram
.Saludos,
Aitor
Is there an easy way to navigate to and find it if you're not using OpenG?
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QUOTE(Aristos Queue @ Dec 14 2007, 07:20 PM)
...The compound input was debated recently when the For Loop got its upgrade to have an early exit terminal. The ease of getting to the compound boolean function (by popping up on the stop terminal and dropping from the shortcut palette there) was felt to be sufficient. There's a lot of worry about loading up the complexity of the loop structures that are so commonly used by new LV programmers. The For Loop's break is a mode you turn on. We could add a compound mode to the stop terminal, but a that point you've gone through just about the same number of mouse clicks as needed to drop the compound boolean function anyway.Is there any particular reason to not use the sub-VI approach recommended above? FWIW I like that approach as it retains some "form" consistency, can be reused pretty easily and can be searched for within a project, etc.
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QUOTE(Aristos Queue @ Dec 11 2007, 04:39 PM)
The warning letter is about the *driver CD*, not LV. The LV on those CDs is exactly the same LabVIEW that was on the August CD -- we haven't released any LV patches/versions since then.I'm on SSP and just received some CDs in the mail and they were labeled "Fourth Quarter" or something like that (I don't have them with me currently while I'm traveling). Was this not some form of "update"?
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QUOTE(Jim Kring @ Dec 8 2007, 11:38 AM)
Functional Globals encapsulate data and functionality in a singleton by reference "class" -- they are one of the first object-oriented programming techniques employed by LabVIEW developers. Check out LabVIEW for Everyone, 3rd ed. Appendix D (pp. 903-912) for more infoFWIW, that's certainly how it always seemed to me.
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QUOTE(alfa @ Nov 21 2007, 11:58 PM)
And the non-invasive alternatives are completely ignored -- like what I've developed using LV:
www.zengar.com
val
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QUOTE(alfa @ Nov 21 2007, 11:58 PM)
And the non-invasive alternatives are completely ignored -- like what I've developed using LV:
www.zengar.com
val
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Are you working in XP or Vista?
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Are you working in XP or Vista?
Turning off automatic tool selection
in LAVA Lounge
Posted
QUOTE (Aristos Queue @ Mar 12 2008, 08:30 AM)
Same here - I haven't used a mouse in years.