Loops 对于循环逻辑，通过查看未来的点值来标记一系列数据点的趋势类型

我使用了一个for循环，它遍历一系列数据点，并计算出如何对数据显示的趋势进行分类

以下是标记这些点的逻辑：

• 如果连续6个点有下降/上升趋势，则标记为“下降趋势”/“上升趋势”
• 否则，如果一行中有7个点低于/高于平均值，则标记为“低于平均值”/“高于平均值”

我们将增加/减少趋势优先于低于或高于平均值

我认为我使用的逻辑是不正确的，但我不确定为什么。这是本系列的一句话中的一些逻辑：

“对于每个点，如果接下来的5个点低于此值，然后是他们以前的搭档，则将所有这些点标记为“下降趋势”。否则，如果某个点未标记趋势，则查看此点的以下6个点是否都高于或低于平均值”

您可以全部复制并粘贴此内容：

package main

import (
"bufio"
"fmt"
"os"
"strings"
)

type points struct {
    quantity   float64
    lowerBound float64
    upperBound float64
    mean       float64
    pattern    string
}

func main() {

var pointsToUse = []points{
    points{quantity: 3.5, lowerBound: 1, upperBound: 4.8,, mean: 4, pattern: "Common Variation"},

    points{
        quantity:   3.4,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },

    points{
        quantity:   3.2,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },

    points{
        quantity:   3.19,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },

    points{
        quantity:   3.17,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },

    points{
        quantity:   3.14,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },

    points{
        quantity:   3.12,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },

    points{
        quantity:   3.09,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },

    points{
        quantity:   4.1,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },

    points{
        quantity:   3.16,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },

    points{
        quantity:   3,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },
    points{
        quantity:   3,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },
    points{
        quantity:   3.11,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },
    points{
        quantity:   3.12,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },
    points{
        quantity:   3.14,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },
    points{
        quantity:   3.13,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Common Variation",
    },
    points{
        quantity:   3.17,
        lowerBound: 3,
        upperBound: 4.8,
        mean:       4,
        pattern:    "Commons Variation",
    },
}

for i, point := range pointsToUse {

    if len(pointsToUse) >= 6 && len(pointsToUse)-(i+1) >= 5 {
        if point.quantity > pointsToUse[i+1].quantity && pointsToUse[i+1].quantity > pointsToUse[i+2].quantity && pointsToUse[i+2].quantity > pointsToUse[i+3].quantity && pointsToUse[i+3].quantity > pointsToUse[i+4].quantity && pointsToUse[i+4].quantity > pointsToUse[i+5].quantity {
            point.pattern = "Decreasing Trend"
            pointsToUse[i+1].pattern = "Decreasing Trend"
            pointsToUse[i+2].pattern = "Decreasing Trend"
            pointsToUse[i+3].pattern = "Decreasing Trend"
            pointsToUse[i+4].pattern = "Decreasing Trend"
            pointsToUse[i+5].pattern = "Decreasing Trend"
            continue
        } else if point.quantity < pointsToUse[i+1].quantity && pointsToUse[i+1].quantity < pointsToUse[i+2].quantity && pointsToUse[i+2].quantity < pointsToUse[i+3].quantity && pointsToUse[i+3].quantity < pointsToUse[i+4].quantity && pointsToUse[i+4].quantity < pointsToUse[i+5].quantity {
            point.pattern = "Increasing Trend"
            pointsToUse[i+1].pattern = "Increasing Trend"
            pointsToUse[i+2].pattern = "Increasing Trend"
            pointsToUse[i+3].pattern = "Increasing Trend"
            pointsToUse[i+4].pattern = "Increasing Trend"
            pointsToUse[i+5].pattern = "Increasing Trend"
            continue
        }
    }
    if (point.pattern != "Decreasing Trend" || point.pattern != "Increasing Trend") && len(pointsToUse)-(i+1) >= 6 {
        if point.quantity < pointsToUse[i].mean && pointsToUse[i+1].quantity < pointsToUse[i].mean && pointsToUse[i].quantity < pointsToUse[i].mean && pointsToUse[i+3].quantity < pointsToUse[i].mean && pointsToUse[i+4].quantity < pointsToUse[i].mean && pointsToUse[i+5].quantity < pointsToUse[i].mean && pointsToUse[i+6].quantity < pointsToUse[i].mean {
            pointsToUse[i].pattern = "Below Mean"
            pointsToUse[i+1].pattern = "Below Mean"
            pointsToUse[i+2].pattern = "Below Mean"
            pointsToUse[i+3].pattern = "Below Mean"
            pointsToUse[i+4].pattern = "Below Mean"
            pointsToUse[i+5].pattern = "Below Mean"
            pointsToUse[i+6].pattern = "Below Mean"
        } else if point.quantity > pointsToUse[i].mean && pointsToUse[i+1].quantity > pointsToUse[i].mean && pointsToUse[i].quantity > pointsToUse[i].mean && pointsToUse[i+3].quantity > pointsToUse[i].mean && pointsToUse[i+4].quantity > pointsToUse[i].mean && pointsToUse[i+5].quantity < pointsToUse[i].mean && pointsToUse[i+6].quantity < pointsToUse[i].mean {
            pointsToUse[i].pattern = "Above Mean"
            pointsToUse[i+1].pattern = "Above Mean"
            pointsToUse[i+2].pattern = "Above Mean"
            pointsToUse[i+3].pattern = "Above Mean"
            pointsToUse[i+4].pattern = "Above Mean"
            pointsToUse[i+5].pattern = "Above Mean"
            pointsToUse[i+6].pattern = "Above Mean"
        }
    }
}

fmt.Println(pointsToUse)
}

有人能指出我哪里出了问题吗

这一行：

if（point.pattern！=“递减趋势”| | point.pattern！=“递增趋势”）&&len（pointsToUse）-（i+1）>=6{

等于：

如果为true&&len（pointsToUse）-（i+1）>=6{

另外，您需要使用

点来使用[i].pattern=“Desculating Trend”

而不是

point.pattern=“Desculating Trend”

，因为

点是循环值，不会在切片中分配

为什么
对于a:=范围b
引用了一份副本，请检查（stackoverflow问题）
感谢icza和sHartmann为我指出了正确的方向：

完整循环如下所示：

    for i, point := range pointsToUse {

        if len(pointsToUse)-(i+1) >= 5 {
            if point.quantity > pointsToUse[i+1].quantity && pointsToUse[i+1].quantity > pointsToUse[i+2].quantity && pointsToUse[i+2].quantity > pointsToUse[i+3].quantity && pointsToUse[i+3].quantity > pointsToUse[i+4].quantity && pointsToUse[i+4].quantity > pointsToUse[i+5].quantity {
                pointsToUse[i].pattern = "Decreasing Trend"
                pointsToUse[i+1].pattern = "Decreasing Trend"
                pointsToUse[i+2].pattern = "Decreasing Trend"
                pointsToUse[i+3].pattern = "Decreasing Trend"
                pointsToUse[i+4].pattern = "Decreasing Trend"
                pointsToUse[i+5].pattern = "Decreasing Trend"
                continue
            } else if point.quantity < pointsToUse[i+1].quantity && pointsToUse[i+1].quantity < pointsToUse[i+2].quantity && pointsToUse[i+2].quantity < pointsToUse[i+3].quantity && pointsToUse[i+3].quantity < pointsToUse[i+4].quantity && pointsToUse[i+4].quantity < pointsToUse[i+5].quantity {
                pointsToUse[i].pattern = "Increasing Trend"
                pointsToUse[i+1].pattern = "Increasing Trend"
                pointsToUse[i+2].pattern = "Increasing Trend"
                pointsToUse[i+3].pattern = "Increasing Trend"
                pointsToUse[i+4].pattern = "Increasing Trend"
                pointsToUse[i+5].pattern = "Increasing Trend"
                continue
            }
        }

        if pointsToUse[i].pattern == "Decreasing Trend" || pointsToUse[i].pattern == "Increasing Trend" {
            continue
        } else if len(pointsToUse)-(i+1) >= 6 {
            if point.quantity < pointsToUse[i].mean && pointsToUse[i+1].quantity < pointsToUse[i].mean && pointsToUse[i].quantity < pointsToUse[i].mean && pointsToUse[i+3].quantity < pointsToUse[i].mean && pointsToUse[i+4].quantity < pointsToUse[i].mean && pointsToUse[i+5].quantity < pointsToUse[i].mean && pointsToUse[i+6].quantity < pointsToUse[i].mean {
                pointsToUse[i].pattern = "Below Mean"
                pointsToUse[i+1].pattern = "Below Mean"
                pointsToUse[i+2].pattern = "Below Mean"
                pointsToUse[i+3].pattern = "Below Mean"
                pointsToUse[i+4].pattern = "Below Mean"
                pointsToUse[i+5].pattern = "Below Mean"
                pointsToUse[i+6].pattern = "Below Mean"
            } else if point.quantity > pointsToUse[i].mean && pointsToUse[i+1].quantity > pointsToUse[i].mean && pointsToUse[i].quantity > pointsToUse[i].mean && pointsToUse[i+3].quantity > pointsToUse[i].mean && pointsToUse[i+4].quantity > pointsToUse[i].mean && pointsToUse[i+5].quantity < pointsToUse[i].mean && pointsToUse[i+6].quantity < pointsToUse[i].mean {
                pointsToUse[i].pattern = "Above Mean"
                pointsToUse[i+1].pattern = "Above Mean"
                pointsToUse[i+2].pattern = "Above Mean"
                pointsToUse[i+3].pattern = "Above Mean"
                pointsToUse[i+4].pattern = "Above Mean"
                pointsToUse[i+5].pattern = "Above Mean"
                pointsToUse[i+6].pattern = "Above Mean"
            }
        }
}

此条件：
if（point.pattern！=“递减趋势”| | point.pattern！=“递增趋势”）&&&……
–第一部分总是
true
，
a！=X | | a！=Y
总是
true
如果
X！=Y
。你很可能想使用
&
而不是
|
。我没有想到……我假设，因为我是这样设置未来的值：pointsToUse[I+1]。模式=“下降趋势”…但我现在看到了你的观点
point.pattern！=“下降趋势”| | point.pattern！=“上升趋势”
–这种情况毫无意义，总是
正确的
。你是否建议完全删除该条件，然后在趋势语句下面添加此语句：“if point.pattern=”“递减趋势”| | point.pattern==“递增趋势”{continue}“谢谢，我假设是因为我在“递增趋势”和“递减趋势”语句中设置了未来值，如果它能够正确评估的话
    for i, point := range pointsToUse {

        if len(pointsToUse)-(i+1) >= 5 {
            if point.quantity > pointsToUse[i+1].quantity && pointsToUse[i+1].quantity > pointsToUse[i+2].quantity && pointsToUse[i+2].quantity > pointsToUse[i+3].quantity && pointsToUse[i+3].quantity > pointsToUse[i+4].quantity && pointsToUse[i+4].quantity > pointsToUse[i+5].quantity {
                pointsToUse[i].pattern = "Decreasing Trend"
                pointsToUse[i+1].pattern = "Decreasing Trend"
                pointsToUse[i+2].pattern = "Decreasing Trend"
                pointsToUse[i+3].pattern = "Decreasing Trend"
                pointsToUse[i+4].pattern = "Decreasing Trend"
                pointsToUse[i+5].pattern = "Decreasing Trend"
                continue
            } else if point.quantity < pointsToUse[i+1].quantity && pointsToUse[i+1].quantity < pointsToUse[i+2].quantity && pointsToUse[i+2].quantity < pointsToUse[i+3].quantity && pointsToUse[i+3].quantity < pointsToUse[i+4].quantity && pointsToUse[i+4].quantity < pointsToUse[i+5].quantity {
                pointsToUse[i].pattern = "Increasing Trend"
                pointsToUse[i+1].pattern = "Increasing Trend"
                pointsToUse[i+2].pattern = "Increasing Trend"
                pointsToUse[i+3].pattern = "Increasing Trend"
                pointsToUse[i+4].pattern = "Increasing Trend"
                pointsToUse[i+5].pattern = "Increasing Trend"
                continue
            }
        }

        if pointsToUse[i].pattern == "Decreasing Trend" || pointsToUse[i].pattern == "Increasing Trend" {
            continue
        } else if len(pointsToUse)-(i+1) >= 6 {
            if point.quantity < pointsToUse[i].mean && pointsToUse[i+1].quantity < pointsToUse[i].mean && pointsToUse[i].quantity < pointsToUse[i].mean && pointsToUse[i+3].quantity < pointsToUse[i].mean && pointsToUse[i+4].quantity < pointsToUse[i].mean && pointsToUse[i+5].quantity < pointsToUse[i].mean && pointsToUse[i+6].quantity < pointsToUse[i].mean {
                pointsToUse[i].pattern = "Below Mean"
                pointsToUse[i+1].pattern = "Below Mean"
                pointsToUse[i+2].pattern = "Below Mean"
                pointsToUse[i+3].pattern = "Below Mean"
                pointsToUse[i+4].pattern = "Below Mean"
                pointsToUse[i+5].pattern = "Below Mean"
                pointsToUse[i+6].pattern = "Below Mean"
            } else if point.quantity > pointsToUse[i].mean && pointsToUse[i+1].quantity > pointsToUse[i].mean && pointsToUse[i].quantity > pointsToUse[i].mean && pointsToUse[i+3].quantity > pointsToUse[i].mean && pointsToUse[i+4].quantity > pointsToUse[i].mean && pointsToUse[i+5].quantity < pointsToUse[i].mean && pointsToUse[i+6].quantity < pointsToUse[i].mean {
                pointsToUse[i].pattern = "Above Mean"
                pointsToUse[i+1].pattern = "Above Mean"
                pointsToUse[i+2].pattern = "Above Mean"
                pointsToUse[i+3].pattern = "Above Mean"
                pointsToUse[i+4].pattern = "Above Mean"
                pointsToUse[i+5].pattern = "Above Mean"
                pointsToUse[i+6].pattern = "Above Mean"
            }
        }
}

        if pointsToUse[i].pattern == "Decreasing Trend" || pointsToUse[i].pattern == "Increasing Trend" {
        continue
    }