After a couple of days of sunny days, a thin blanket of haze has started to cover the sky of the city of Vancouver. Every time when this happens, it reminds me of what Dr. Lau taught me during my air pollution class: The haze in Vancouver is created from a chain of photochemical processes that creates nitrogen oxides from the emissions from cards under the condition of prolonged UV ray exposure. In other words, haze is inevitable in Vancouver during a week of sunny days. The beautiful North Shore mountains were covered by the haze.
Yesterday was my meeting day. I met my supervisor, Dr S, met with my workshop organizing commitee and met with my kind friend, David. Using a free statistical software, called R Gui, he helped me to generate a very very good multivariate (5 variables) linear regression from my net calorific value data with a R-squared value of 0.835!! He is the man of statistics!!
My previous attempts resulted in R-squared values that were only 0.700 or LOWER. Below is the resulted equation. It is pretty complicated eh? But only the highlighted terms are statistically significant, which means it can be simplified by omitting terms that are not highlighted.
However, I'm still figuring out how to present this to the VP of Pinnacle REG....
That is what I have spent my day reading and writing about.
Gym time! I shall stretch some of my muscles to release some stress.
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