I didn't guess.avi123 wrote:
How the ResScan software actually calculates it? .... I don't know, I didn't write the software.
A very smart reply! So why are you taking guesses?
jnk, you might be right with this:
As for what I assume to be the core of the range-of-dates-calculations question about ResMeds, from avi123, namely, "how the 60 nights results are calculated and given for the whole period," I defer to Velbor from back in the S8 II days:
Velbor, on Sat May 23, 2009 9:52 am, wrote:ResMed manuals state that "All statistics calculated for a range of dates are median values. .... The median is a more robust measure than an average (or arithmetic mean) for a data set that has some extreme values."
viewtopic/t27384/viewtopic.php?f=1&t=42103&p=370530p370530
What is a "median"? The guy drawing little numbers in this video seems to know: http://www.khanacademy.org/math/algebra ... --and-mode
Disclaimer: I don't know if the video is RobySue-approved.
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jnk, you're saying that:
The RsScan just takes a plain average of all the nights in a period for each night's pressure, and leak that are broken into Median, 95% Percentile, and Maximum, and post it for the Period. It does it also for the other parameters such as AHIs, setting pressure, etc.
Added: NO, IT'S THE MEDIAN.
You asked ... "how the 60 nights results are calculated and given for the whole period? " ... NOT how they were calculated by ResScan. I answered how they could be calculated which was not a guess. Jeff's link to Velbor's comment refined how the 60 night calculation was made using the median of the 60 values of 95th percentiles.
The real question however is as Jeff originally asked of YOU ... "Why? What problem are you trying to solve?" ... or more accurately, what problem are you trying to create on this thread?