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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 Timer with Swift

2020/2/16.  The Timer with Swift

I was suffering about how to use timer with swift…

import SwiftUI

struct ContentView: View {
    
    @State var count = 0
    
    func timerStart() {
        _ = Timer.scheduledTimer(withTimeInterval: 1, repeats: true, block:{
            timer in self.count += 1
        })
    }
    
    var body: some View {
        VStack{
            Button(action:{self.timerStart()}) {
            Text("Timer Start")
        }
        Text(String(count))
    }
}
}


struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

Above code is very easy, but reaching to it,  I was very suffered…

Xcode prints too much errors…


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