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I have The patient here has edited some of my her settings. For a newbie, the default settings are fine.
I have edited some Some of these valueshave been edited. By default, the default values for the check boxes are:
→Important preferences settings: NPOV, spelling
= Important preferences settings =
When you select '''Preferences''' off the appropriate menu, a Preferences panel will come up. Regardless of whether you are using a Mac or a Windows machinecomputer, the Preferences panel will look the same. The default starting place in the Preferences panel is the '''Import''' pane. '''The Import panel'''
The Import tab of the Preferences panel looks like this:
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* ''Create SD card backups during Import''. As the parenthetical note says, making sure this is checked is pretty critical for ResMed S9 and FP Icon users since those machines overwrite the detailed data on the SD card on a regular basis. Checking this will make it easier to reimport the data if it becomes necessary.
All other settings on this page can be left at the default settings until you're more comfortable with SHSleepyHead. (NOTE: my this patient's settings are NOT the default settings.)
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[[File:preferences2_zpsb50a35c7.jpg]]
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The default values have been edited on my the patient's profile. Things of note for a newbie:
* ''The CPAP information'' on the left side of the panel is largely irrelevant at this point. SleepyHead defaults to a statistical model for approximating the (excess) leak for all machines other than the ResMed S9, which records only the excess leak. If you forget to change the Leak Calcs from "Mask Profile" to "Statistical Model" it really doesn't matter.
* ''CPAP clock drift'' should be left at 0 seconds unless you know your CPAP clock is off and you can't change PAP's internal clock. Mine This patient's clock is off by a whopping 23 minutes, and because it's a PR System One, I -- she can't change the PAP's clock; hence the offset of 1380 seconds.* ''Show Leak Redline.'' The default is to have this checked and the default value for the Redline is the ResMed value of 24 L/min. This is a NEW feature in SH SleepyHead 0.9.6. If you are using a ResMed S9, it's strongly recommended that you make sure Show Leak Redline is checked. If you are using a different machine, this may be a useful option for you, but you will need to change the value for the Redline. More on that in a bitlater.* ''Show compliance'' affects how low usage days show up in the Overview data and the compliance data in the Statistics page. The default line is 4 hours for obvious reasons. IIt'd suggest leaving s suggested that you leave this alone.* ''Custom User Event Flagging.'' IIt'd recommend s recommended that a new PAPer leave this unchecked. It can be useful if you have a lot of "almost" apneas or "almost" hypopneas showing up in your detailed data, but it really is an advanced feature.
* ''AHI/Hour Graph Settings.'' The default is to have the box by Zero Reset unchecked. Leaving the box unchecked tells the AHI/hour graph to keep a running total of the number of events (OAs + CAs + Hs) that have happened in the last 60 minutes. To make the AHI/hour graph behave like the ResScan AHI/Hour graph, you need to check the Zero Reset box; then the AHI count is set back to 0 at the top of every hour.
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'''A detailed look at the Show Leak Redline option'''
The default is to have this checked and the default value for the Redline is the ResMed value of 24 L/min. This is a NEW feature in SH SleepyHead 0.9.6. Since I use our sample patient uses a PR System One and I she pretty much understand my understands her leaks, I've she has unchecked the Redline so I donshe doesn't get one in my daily leak graphs. If you want a line for helping you spot Large Leaks and you are NOT using a ResMed S9 machine, the first thing you will need to do is figure out whether your machine's manufacturer has an official definition of "Large Leak" or not. Here is what I've been able to put togethersome information on that:
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* ''PR System One''. The PR machines report TOTAL leak, but PR never tells us what the official definition of a Large Leak. SleepyHead 0.9.6 now flags the official Encore Large Leaks as gray bars over the Flow Rate graph. So if you get a lot of large leaks, you can use that data to help you decide where to draw a Large leak line. But until you get some data, here's a staring place to make some guesses about where to draw the Redline that are based on looking at a lot of Encore data from a lot of PR users over the years:
** ''Older Series 50 System One machines''. If you are using a pressure setting that is higher than 8-10cm, Encore usually does not flag Large Leaks until the Total Leak rate is up around 90-100 L/min. If you are using very low pressures (4-8cm), Encore may start flagging large leaks at around 60 L/min. So start by selecting a Redline of 90 L/min if you are using pressures above 8 cm and a Redline of 60 L/min if you are using pressures below 8 cm. Adjust if you see Gray Large Leak bars in your actual data.
** ''New Series 60 System One machines''. If you are using a pressure setting that is higher than 8-10cm, the Encore software usually does not flag Large Leaks until the Total Leak rate is up around 80 L/min. If you are using very low pressures (4-8cm), Encore may start flagging large leaks at around 50 L/min. So start by selecting a Redline of 80 L/min if you are using pressures above 8 cm and a Redline of 50 L/min if you are using pressures below 8 cm. Adjust if you see Gray Large Leak bars in your actual data.
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Note that there are going to be graphs on this list that do NOT show up in your particular data; that's because this is a master list of all the graphs for all the machines that SleepyHead supports. If your machine does not record a particular kind of data, you won't have that graph show up in the daily data, even though it will be listed here.
The "default" values where both the min and max values are set to 0.0 allows SH SleepyHead to choose the values for the vertical scale of the graphs. Most of the time those default values are just fine. However, sometimes the the default values compress the data too much vertically and that can leave a lot of "unused white space" in the graphs. If you want to change a graph's values, double click on the particular value you want changed, and you'll be able to edit it:
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[[File:preferences4_zpse8e10be4.jpg]]
SleepyHead should save your graph settings after you've changed them, so you really only need to edit the y-values for the graphs once.
The values that make sense for '''''MY''''' data are probably NOT a good starting point for most people since I'm our sample patient is a very petite 5'1" female who weighs about 110 lbs. That said, here's what the value I she typically use uses for my her graphs look like:
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[[File:preferences5_zpsafcf5d39.jpg]]
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'''The General panel'''The General tab of the Preferencs Preferences panel looks like this:
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[[File:preferences6_zpsdc512fd2.jpg]]
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The default Upper Percentile Calculation is 95% (the ResMed number), but I prefer the sample patient prefers to use the 90% numbers, since they agree with Encore, the official manufacturer software for my her machine.
Median is a better choice for the "middle" calculation than either "Average" or "Weighted Average" in my mathematician's opinionfrom a mathematician’s perspective. The numerical average and weighted average are not a meaningful as Median is. The Median is the "middle" point of the data---50% of the data lies AT or BELOW the median and 50% of the data lies AT or ABOVE the median. Both the Average and Weighted Average can be (seriously) skewed by even a tiny bit of outlier data.
The default for "Skip over Empty Days" is to have the box checked; I want This patient wants to be reminded that there's no data for a particular day, so I uncheck she unchecked that box.
The default for "I want to try experimental and test builds" is to have the box unchecked. For a new user that's the right choice. (I've been a SH user right from the start, and in fact some of my BiPAP data was used way back in SH 0.7 to get SH to load the PR BiPAP data correctly. So I have that box checked because I'm one of the "testers" when I have the time to help find bugs.)<br />
[[File:preferences7_zps7c33c511.jpg]]
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For most newbies, the default settings can be left alone, with the following possible exception:
* ''Use Pixmap Caching''. By default, this is turned on; I would recommend turning It's recommended that you turn "Use Pixmap Caching" off by unselecting deselecting the box. Pixmap Caching can make some of the graphics stuff go faster, but it can also cause problems, particularly if your graphics card is not standard. I Most patients routinely turn Pixmap Caching off by unchecking the box because I don't notice a there is no noticeable speed up when Pixmap Caching is turned ON and I have used machines that . Some have had bizzare reported bizarre problems with the graphs when Pixmap Caching is turned ON is that seems to go away when I turn Pixmap Caching is turned off.
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Also note: Right now the "Animations & Fancy Stuff" is disabled in SH0SleepyHead 0.9.6 while JediMark and his collaborators are chasing some bugs. So you don't get anything extra if Animations & Fancy Stuff is turned ON. I never much cared for the animation stuff, so I always turned it off.<br />
= Leaks =
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