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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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The Xcode help

2019/10/27.  The Xcode help

Xcode help is very useful!

I am trying to new macOS app by Xcode with Swift language.
There is a few sources or blogs for developing macOS with Swift.

How can I develop?
I found Xcode help is very useful.
Searching how to do it is very easy. Easy to find & to understand.

Recently, I become I don’t like smartphones.
Because smartphones drain our time so many.
So I want to shift developing from iOS apps to macOS apps.

I feel that making iOS apps is helping for draining other people’s time.
I think it’s not good. 
Of course, company and rich people may like to drain other people’s assets.
But I don’t like it.

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