OSCAR Welcome and Statistics page not matching

[macbob]

Guy-  Thank you. 

You've been very helpful in understanding the information that OSCAR is providing.

[GuyScharf]

Also, looking at the daily statistics chart and graphs for 5 Feb, there seems to be other issues:

My flow limit in the chart on the left says Max of 0.17, but in the graphs I have at least one that was 0.61

My Snore stats say Max of 0.00, but I had 3 snore episodes in the graphs, with two of the 3 going above the 0.4 scale.  One registered 0.72, with the highest one recorded at 3.24.

For the Respiratory rate, the stats chart says Max of 20.4, but when I hover over them in the graph, the highest one reads 24.0

For Tidal Vol the stats chart says max of 800, but the graph shows a max of 998.06

For Inspiration time, it says max of 3.24 but hovering over the graph it shows a max of 6.52

Exp time says max of 3.22 but the graph shows the highest was 3.82

Minute Vent says max of 10.88, but the graph shows the highest was 12.36

Thanks for sending me the zip of your SD card.

All of the above discrepancies are a result of the "max" calculation actually being a 99.5% percentile calculation. We calculate it that way to match how ResMed calculates it so that OSCAR results agree with ResMed results.

fyi, you missed the actual maximums on tidal volume and minute vent.

I'll look into the leak calculation on the Welcome page next. That is the "unpleasant" problem I mentioned. I'll explain it when I figure out what to do about it.

Here's what the Statistics block looks like for Feb 5 with a true maximum calculation (and, no, you cannot reproduce this as I had to modify the code temporarily to make this happen):

     

[GuyScharf]

Regarding the leak rate message on the Welcome page, I am pretty sure this problem is fixed for the next version of OSCAR. It wasn't until I looked at the change log that I remembered that I had fixed that problem about 4 months ago -- the wrong "average" function was being used on the Welcome page.

[macbob]

Also, looking at the daily statistics chart and graphs for 5 Feb, there seems to be other issues:

My flow limit in the chart on the left says Max of 0.17, but in the graphs I have at least one that was 0.61

My Snore stats say Max of 0.00, but I had 3 snore episodes in the graphs, with two of the 3 going above the 0.4 scale.  One registered 0.72, with the highest one recorded at 3.24.

For the Respiratory rate, the stats chart says Max of 20.4, but when I hover over them in the graph, the highest one reads 24.0

For Tidal Vol the stats chart says max of 800, but the graph shows a max of 998.06

For Inspiration time, it says max of 3.24 but hovering over the graph it shows a max of 6.52

Exp time says max of 3.22 but the graph shows the highest was 3.82

Minute Vent says max of 10.88, but the graph shows the highest was 12.36

Thanks for sending me the zip of your SD card.

All of the above discrepancies are a result of the "max" calculation actually being a 99.5% percentile calculation. We calculate it that way to match how ResMed calculates it so that OSCAR results agree with ResMed results.

fyi, you missed the actual maximums on tidal volume and minute vent.

I'll look into the leak calculation on the Welcome page next. That is the "unpleasant" problem I mentioned. I'll explain it when I figure out what to do about it.

Here's what the Statistics block looks like for Feb 5 with a true maximum calculation (and, no, you cannot reproduce this as I had to modify the code temporarily to make this happen):

     

Wow.  Based on the previous Max vs 99% discussion, I was thinking that might be the difference.  I hope it wasn't a lot of time/effort to modify the code.  I'm impressed.

[macbob]

Regarding the leak rate message on the Welcome page, I am pretty sure this problem is fixed for the next version of OSCAR. It wasn't until I looked at the change log that I remembered that I had fixed that problem about 4 months ago -- the wrong "average" function was being used on the Welcome page.

That was the one that was really hurting my head.  I wanted to thank you again for all your help.  I am amazed at what you / the team is doing with OSCAR.