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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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Facebook: Do we like it?

2018/10/10.  Facebook: Big data stalker?

Simple question… Do we like Facebook or not?

I am not prefer Facebook, but I am using it unwillingly.
Because Japan Mensa recommend using Facebook.
This is one reason, and just only one.

I am thinking about Facebook’s real purpose.
And it wants to collect user information with real name.
But I don’t want to cooperate to it, and I don’t need to.
So satisfaction from using Facebook is very low, 
but risk of using it is very high.
Is this good for me? 
Maybe I don’t need Facebook, and I will stop using someday.

2018/9/30.  Facebook: Risky information bank

Banks have to make their security so much.
But how about information banks?
They seem to have weak security.

And I remember the news that “millennial persons don’t care about their information to be used by company”. Is this real?
I think that this news is fake or advertisement.

I rethink about SNS’s purposes. Of course, I am using Facebook.
It’s for watching Japan Mensa’s group pages.
But there are a lot of “good” switches in internet pages…
And the switches can trace personal webpage tours.

Facebook traces personal information too much!

Further more, Facebook sells personal information easily.
Facebook users can’t see this side(selling side).
What type of companies can use & what type of policy are there?

Of course, this is secret. But can we trust Facebook? 
Facebook is company, and they have to earn money.

How can they earn? Get personal information, analysis them and sell them to other companies. This is business.

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