Because I'm a nerd
Aug 12, 2015 10:58:48 GMT -5
Post by Ray on Aug 12, 2015 10:58:48 GMT -5
I just spent the last hour doing basic stats on my cycles by hand bc 1) I don't have FF VIP 2) there is a pile of dishes staring me down and 3) I'm a nerd. So let's talk cycles!
**disclaimer #1: I realize your cycles have nothing to do with mine and vice versa. This is purely for "huh" and "I'm bored lets do math" and "I'm good at procrastinating" sake.**
I calculated mean, median, and mode for my O date, LP, and cycle length and found that on average I O on CD 23, have an LP of 11 days, and cycle length of 34 days with a standard deviation of 3.6. I was surprised the SD was so high! So I have accepted the fact that I really do have irregular cycles.
ETA: I didn't use the data from the first two cycles I was off BCP since I ovulated on CD 14 and 17 respectively and knew these were out to lunch.
**disclaimer #2 - I realize that menstrual cycle length variance for women may not follow normal distribution, I'm procrastinating, but not so hard that I feel like researching that far **
So tell me about your cycles!
I'll leave this here in case any one else doesn't have VIP/unfamiliar with SD:
To calculate the standard deviation of those numbers
1. Work out the Mean (the simple average of the numbers)
2. Then for each number: subtract the Mean and square the result.
3. Then work out the mean of those squared differences.
4. Take the square root of that and we are done!
Also, my PC is being a bitch so I will try to add an image of SD on a bell curve from mobile in a minute.
**disclaimer #3 - I also realize this thread might be a total flop so I've included a poll for those who like to click clicky things**