From 9d856e6f9f065b1dacb6ae8ce8039118b168321f Mon Sep 17 00:00:00 2001
From: wangfeng <wangfengxy@sina.cn>
Date: Fri, 3 Feb 2023 11:53:31 +0800
Subject: [PATCH] =?UTF-8?q?=E5=88=A0=E9=99=A4=E5=BA=9F=E5=BC=83=E7=9A=84?=
 =?UTF-8?q?=E5=87=BD=E6=95=B0?=
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---
 stat/where.go | 34 ----------------------------------
 1 file changed, 34 deletions(-)

diff --git a/stat/where.go b/stat/where.go
index 929cd3e..a7d5253 100644
--- a/stat/where.go
+++ b/stat/where.go
@@ -2,7 +2,6 @@ package stat
 
 import (
 	"gitee.com/quant1x/pandas/algorithms/avx2"
-	"math"
 )
 
 //func Where[T int64 | float64](condition any, params ...any) []T {
@@ -18,39 +17,6 @@ import (
 // params只支持两个默认值x和y, 如果condition为true返回x, 否则返回y
 // condition和param都可能是基础数据类型,也可能是一个slice, 并且长度可能不一致
 // 直接写成序列版本, 可能更简单
-// func Where[T int64 | float64](condition []T, x, y []T) []T {
-func Where1(condition []float64, x, y []float64) []float64 {
-	// 第一步, 找出最长的
-	clen := len(condition)
-	xlen := len(x)
-	ylen := len(y)
-	// 第二步, 找出最大长度
-	c := []float64{float64(clen), float64(xlen), float64(ylen)}
-	maxLength := int(avx2.Max(c))
-
-	// 对齐所有长度
-	if clen < maxLength {
-		condition = align(condition, math.NaN(), maxLength)
-	}
-	if xlen < maxLength {
-		x = align(x, math.NaN(), maxLength)
-	}
-	if ylen < maxLength {
-		y = align(y, math.NaN(), maxLength)
-	}
-	// 初始化返回值
-	d := make([]float64, maxLength)
-	for i := 0; i < maxLength; i++ {
-		// NaN也被认为是真
-		if condition[i] != 0 {
-			d[i] = x[i]
-		} else {
-			d[i] = y[i]
-		}
-	}
-	return d
-}
-
 func Where[T StatType](condition []T, x, y []T) []T {
 	// 第一步, 找出最长的
 	clen := len(condition)
-- 
Gitee