search for: recalibr

...ng predict.Arima I found arima model for a data set: x={x1,x2,x3,...,x(t)} arima_model = arima(x,order=c(1,0,1)) I am forecasting the next N lags using predict: arima_pred = predict(arima_model,n.ahead = N, se.fit=T) If I have one more point in my series, let's say x(t+1). I do not want to recalibrate themodel, I just want to forecast the next N-1 lags using the same model for x={x1,x2,...x(t)} but without recalibrate arima. How to do it using arima + predict.Arima ? My problem is that I am trying to fit arima models by brute force ( trying lots of combinations for p and q and chosing the...

...ect from. I don't think they used 'stepwise selection' option, because their models were already pre-defined. Variables were pre-selected based on knowledge of pharmacokinetics of this drug and other factors. I think this part I understand pretty well. I see the Frank's point about recalibration on Fig.2 - although the expectation was set that the prediction be within 15% of the original value. In my opinion it is *very strict* - I actually used 20% in my work. This is because of very high variability and imprecision in the results themselves. These are real biological data and you ha...

Dear all - We perform some measurements with a machine that needs to be recalibrated. The best calibration we get with polynomial regression. The data might look like follows: > true_y <- c(1:50)*.8 > # the real values > m_y <- c((1:21)*1.1, 21.1, 22.2, 23.3 ,c(25:50)*.9)/0.3-5.2 > # the measured data > x <- c(1:50) > # and the x-axes > > # Now...

...tes battery is at 87,5% but Winpower says 100%. In fact, with nut, the battery doesn't charge above 95%. Using megatec_ups -DDDDDD gave me this voltage ranges: 13,7V-9,7V, and the maximum battery voltage I ever seen is 13,5V. Is WinPower using relaxed values? Is the UPS needing a battery recalibrate? I just unpacked and connect it... battery.voltage: 13.20 battery.voltage.nominal: 12.0 driver.name: megatec_usb driver.parameter.mfr: Forza ^^^^^^ driver.parameter.model: SL-1001 ^^^^^^^ driver.parameter.pollinterval: 1 driver.parameter.port: auto...

Hi everybody! It has been a journey but I almost manage to make my UPS properly communicate. This is the config: UPS Mecer/Mustek 2000 VA connected via USB with blazer_usb driver. MASTER Raspberry PI-1 SLAVE Raspberry PI-2 SLAVE iMac OSX 10.10.3 I can get access to the UPS from any of the three devices successfully. Problems: 1. When I launch /usr/local/ups/sbin/upsmon -c fed for testing I see

...S for a couple of minutes, then brought everything back up. The UPS brought the batteries back up to full charge and, so far, has kept them within a couple of percentage points of full ever since (charge level is fluctuating between about 98.3% and 100%). So, it appears NUT doesn't have to recalibrate in any way after swapping out a battery pack; but the UPS itself DOES need to reset. -- Phil Stracchino, CDK#2 DoD#299792458 ICBM: 43.5607, -71.355 alaric at caerllewys.net alaric at metrocast.net phil at co.ordinate.org Renaissance Man, Unix ronin, Perl hacker, Free...

I can just be sittting, doing nothing, and I hear the sound of my hardrive head moving. Just every so often. Like some process is writing a log. I have looked in /var/log and do see occational updates to acpi and messages, but that does not account for all the clicks. Is there somewhere else to look for logs? I would really like to know what process has something to remember.....

...changes to stderr. Another '-D' should log each poll cycle regardless of whether status has changed. Another option is to run upslog to see the rate of discharge when the UPS is on battery. If the charge is falling faster than you expect, the battery may be dead, or the UPS may need to be recalibrated. This may help with the previous question. > 4. I need to halt manually a linux based NAS via SSH. What is the best way (upsched or a script that parses battery.charge and takes decision independently from NUT). It depends what you want the trigger to be. You can use upssched to power down...

...ly get false results ( as in battery OK when it is not really OK ). The only relevant test is under real load, which is why I suggested using a small motor or a light bulb. An UPS battery test (especially on a higher-end UPS like many of the MGE models) can do two things: provide a small load, and recalibrate the runtime estimate based on how the UPS responds to that load. The UPS may not result in a NUT "RB" (replace battery) flag, but it should still have a better estimate of runtime. Marc indicated he saw adequate runtime figures, but if those are based on the original battery, then the...

Using nut v2.2.2, and the APC serial cable. I have a client who's APC SMART-UPS 1500 (circa 2000) is always reporting LB. The batteries were old so they were replaced two weeks ago with brand new batteries. UPS still reported low batteries... I ran a calibration and a test on the unit (using the nut upscmd utility) During those tests, the battery charge on the unit goes to zero and slowly

...en everything else has stopped. > Also if the battery runs down, there is no communication from the UPS via USB - the power just dies. I could use the motherboard toggle to shut down the system, but then I can?t run pre-shutdown scripts. I wonder if that is a calibration issue? Most UPSes will recalibrate as part of their battery test process, and that should update the runtime estimates and other variables necessary to detect a low battery condition. Since you mentioned that the test commands don't show up in upscmd, is there a button or jumper to trigger calibration? If either the runtime...

On 8/19/20 12:55 PM, Marc Franquesa wrote: > Thanks all for the quick responses on the question (always a good sign > of this mailing list). > > (Tim Dawson, Manuel Wolfshant): > Regarding root cause of my current problem pointing to a faulty > battery, this is not the first time that someone points to it. However > I made a simple test with the vendor tools (Windows) and

I read Ben Rockwood''s blog post about Thumpers and SMART (http://cuddletech.com/blog/pivot/entry.php?id=993). Will the SUNWhd package only work on a Thumper? Can I use this on my snv_101 system with AMD 64 bit processor and nVidia SATA?

Sensei H. Peter Anvin, I have successfully modified/enhanced memdisk so that one can chainload a local operating system after running diskless FreeDOS. I would like your advice regarding the appropriate interface for invoking this functionality. In addition, I would like to know what steps to take so that you feel comfortable considering including this in the standard syslinux distribution.

...her '-D' > should log each poll cycle regardless of whether status has changed. > > Another option is to run upslog to see the rate of discharge when the UPS > is on battery. If the charge is falling faster than you expect, the battery > may be dead, or the UPS may need to be recalibrated. This may help with the > previous question. > Thanks for the hint > > 4. I need to halt manually a linux based NAS via SSH. What is the best way > (upsched or a script that parses battery.charge and takes decision > independently from NUT). > > > It depends what you...

Hi I hope someone can please help. I have an Ubuntu Server running 14.04.3 LTS and using an APC ES550 UPS connected via USB. I've installed Nut and can see it does monitor the UPS correctly and give the correct stats with battery percentage etc. But on doing a "real" test and unplugging the UPS from the power supply, after watching the battery drop slowly suddenly the server just

Arnaud, I was finally able to get back to this issue and would recommend adding these items to the FAQ #37 about recalibrating the UPS: 1a. It's important that the UPS be at 100% charge before starting the procedure; starting at lower will not work at all, not just produce inaccurate numbers. ? ? ? [I started the procedure when the UPS was at 91% charge. After that it would never report being more than 20% char...

I?m a new user of NUT and the OpenUPS - in the past I?ve used APC hardware and apcupsd on Centos 6. I?ve built NUT 2.7.2 from source but used the OpenUPS HID driver v0.4 that?s in github. I?m using firmware version 1.5 on the openups which is the latest published version; I?ve also tried 1.7 which Mini-box sent to me but reverted to the published version. Their support seems a bit slow! I?ve got

...q igt/perf_pmu: Protect macro args igt/perf_pmu: Avoid underflow in measured_sleep() igt/perf_pmu: Bump batch_duration for legacy sampling inaccuracy igt/perf_pmu: Reduce arbitrary delays before rc6 igt/perf_pmu: Stop peeking at intel_mmio registers igt/perf_pmu: Recalibrate interrupt loop. igt/perf_pmu: Keep batch_duration_ns as the minimum measurement duration igt: Remove gem_ctx_basic igt/perf_pmu: Increase delay for rc6 to start igt/gem_eio: Test we can suspend when the driver is already wedged igt/gem_eio: Increase wakeup delay for...

Would it be worthwhile to implement heuristics to auto-tune ''recordsize'', or would that not be worth the effort? -- Regards, Jeremy