如何使用mutate和例如dplyr管道计算新值。 stat_poly_eq?
以下代码生成一个绘图,其中包含每个构面内lm的公式。绘制前是否可以使用result = text_string.replace('-\n', '-')
中的公式计算新的y?
func addDashedBorder() {
let color = UIColor.red.cgColor
shapeLayer = CAShapeLayer()
let frameSize = self.bounds.size
let shapeRect = CGRect(x:0 , y: 0, width: frameSize.width, height: frameSize.height)
shapeLayer.frame = shapeRect
shapeLayer.position = CGPoint(x: frameSize.width/2, y: frameSize.height/2)
shapeLayer.fillColor = UIColor.clear.cgColor
shapeLayer.strokeColor = color
shapeLayer.lineWidth = 2
shapeLayer.lineJoin = CAShapeLayerLineJoin.round
shapeLayer.lineDashPattern = [6,3]
shapeLayer.path = UIBezierPath(roundedRect: self.frame, cornerRadius: 5).cgPath
self.layer.addSublayer(shapeLayer)
}