LiuDongdong

爱好由来落笔难,一诗千改心始安。

go库-fmt&strconv

package main import "fmt" type Person struct { Name string Age int } func main() { a := 10 s := "hello world" p := Person{Name: "wohu", Age: 25} c := []int{1, 2, 3, 4} fmt.Printf("p %%v is %v\n", p) // p %v is {wohu 25} fmt.Printf("p %%+v is %+v\n", p) // p %+v is {Name:wohu Age:25} fmt.Printf("p %%#v is %#v\n", p) // p %#v is main.Person{Name:"wohu", Age:25} fmt.Printf("p type

安装目录&工作区&源码&命令.md

GOROOT: Go 语言安装路径。 GOPATH: 若干工作区目录的路径。是我们自己定义的工作空间。在 Go Module 模式之前非常重要,现在基本上用来存放使用 go get 命令获取的项目。 GOBIN: Go 编

ModelEvaluation

0. Sklearn Metric .1. Classification metrics See the Classification metrics section of the user guide for further details. metrics.accuracy_score(y_true, y_pred, *[, …]) Accuracy classification score. metrics.auc(x, y) Compute Area Under the Curve (AUC) using the trapezoidal rule. metrics.average_precision_score(y_true, …) Compute average precision (AP) from prediction scores. metrics.balanced_accuracy_score(y_true, …) Compute the balanced accuracy. metrics.brier_score_loss(y_true, y_prob, *) Compute the Brier score loss. metrics.classification_report(y_true, y_pred, *) Build a text

ModeType

1. 回归问题 回归问题通常是用来预测一个值,如预测房价、未来的天气情况等等,例如一个产品的实际价格为500元,通过回归分析预测值为499元,我们

mysql 索引结构

Innodb 架构 Buffer Pool 用于加速读 Change Buffer 用于没有非唯一索引的加速写 Log Buffer 用于加速redo log写 自适应Hash索引主要用于加快查询页。在查询时,Innodb通
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