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Correlation between NASDAQ price, Corn and Gold(Corr=0.945)

 I wrote Python code which shows Correlation between NASDAQ price, Corn and Gold(Corr=0.945). Corn and Gold are best mix I have found. https://gist.github.com/Kouhei-Takagi/a1a9b073f6cd6dacb7eb1ea871d8fd3c I changed some important parts. https://gist.github.com/Kouhei-Takagi/5becaf7c3a24d63ac9c56856e81297f2
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Diary:Swift programming

2018/3/31. Swift Programming: Good process makes me growing up!

Emotion, this is troublesome before doing things…
But, these days, I feel self-growth about swift programming.
I can’t make APP from zero, but I can copy-write & understand other people’s source codes.
This is great growth for me.
I copy-write calculator APP written on the textbook. I can’t write it by myself.
Maybe it will takes 2-3 months to make some original APPs, it will faster than I expected.
I started learning Swift 4 months ago, and it may be 120-160 hours which I spent,
Some homepages and books tells it takes 200-300 hours to master Swift.
I think it’s right, and it is more than 80-120 hours (maybe 2-3 months) to make my original APPs.
I want to study faster…

And I feel that it is no use about regrets which I didn’t start quickly. 

3 steps for learning Swift!
1)Reading  iBooks on launch time by iPhone - 8 hours/a month
2)Reading textbooks after working - 12 hours/a month
3)Coding on PC in midnight & weekends - 20 hours/a month
Total 40hours/a month.
Last 2 months, I focused on reading iBooks & textbooks, and I will shift on coding in next 2 months.

I found that fixing errors takes a lot of time on coding, I often make errors… But I don’t need to be afraid of making errors. I just only fix them!

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