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- package data
- import (
- "encoding/json"
- "errors"
- "eta/eta_mobile/models/data_manage"
- "eta/eta_mobile/utils"
- "fmt"
- "github.com/shopspring/decimal"
- "math"
- "regexp"
- "sort"
- "strings"
- "time"
- )
- func CheckFormula(formula string) map[string]string {
- mathFormula := []string{"MAX", "MIN", "ABS", "ACOS", "ASIN", "CEIL", "MOD", "POW", "ROUND", "SIGN", "SIN", "TAN", "LOG10", "LOG2", "LOG", "LN", "EXP"}
- str := strings.ToUpper(formula)
- for _, v := range mathFormula {
- str = strings.Replace(str, v, "", -1)
- }
- str = strings.Replace(str, "(", "", -1)
- str = strings.Replace(str, ")", "", -1)
- byteMap := make(map[string]string)
- for i := 0; i < len(str); i++ {
- byteInt := str[i]
- if byteInt >= 65 && byteInt <= 90 {
- byteStr := string(byteInt)
- if _, ok := byteMap[byteStr]; !ok {
- byteMap[byteStr] = byteStr
- }
- }
- }
- return byteMap
- }
- type FormulaListItem struct {
- Formula string `json:"f"`
- Date string `json:"d"`
- }
- // CheckFormulaJson 检测计算公式json串是否异常
- func CheckFormulaJson(formula string) (formulaSlice []string, err error) {
- list := make([]FormulaListItem, 0)
- err = json.Unmarshal([]byte(formula), &list)
- if err != nil {
- err = fmt.Errorf("公式串解析失败: json.Unmarshal Err: %v", err)
- return
- }
- formulaSlice = make([]string, 0)
- // 日期排序
- for _, v := range list {
- formulaSlice = append(formulaSlice, v.Formula)
- }
- return
- }
- type CalculateItems struct {
- EdbInfoId int
- DataMap map[string]float64
- }
- func ReplaceFormula(edbInfoIdArr []*data_manage.EdbInfo, valArr map[int]float64, formulaMap map[string]string, formulaStr string, edbInfoIdBytes []string) string {
- // todo 处理min和max
- funMap := GetFormulaMap()
- for k, v := range funMap {
- formulaStr = strings.Replace(formulaStr, k, v, -1)
- }
- replaceCount := 0
- for dk, dv := range edbInfoIdArr {
- if dk == 0 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- } else {
- fmt.Println("valArr not found:", valArr, valOk)
- }
- } else {
- fmt.Println("formulaMap not found:", dKey, dk)
- }
- }
- if dk == 1 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- } else {
- fmt.Println("valArr not found:", valArr, valOk)
- }
- } else {
- fmt.Println("formulaMap not found:", dKey, dk)
- }
- }
- if dk == 2 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 3 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 4 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 5 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 6 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 7 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 8 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 9 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 10 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 11 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 12 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 13 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 14 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 15 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 16 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 17 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 18 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 19 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 20 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 21 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 22 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 23 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 24 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- if dk == 25 {
- dKey := edbInfoIdBytes[dk]
- if _, ok := formulaMap[dKey]; ok { //公式中存在
- if val, valOk := valArr[dv.EdbInfoId]; valOk { //值存在
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, dKey, dvStr, -1)
- replaceCount++
- }
- }
- }
- }
- for k, v := range funMap {
- formulaStr = strings.Replace(formulaStr, v, k, -1)
- }
- if replaceCount == len(formulaMap) {
- return formulaStr
- } else {
- return ""
- }
- }
- func GetFormulaMap() map[string]string {
- funMap := make(map[string]string)
- funMap["MAX"] = "[@@]"
- funMap["MIN"] = "[@!]"
- funMap["ABS"] = "[@#]"
- funMap["CEIL"] = "[@$]"
- funMap["COS"] = "[@%]"
- funMap["FLOOR"] = "[@^]"
- funMap["MOD"] = "[@&]"
- funMap["POW"] = "[@*]"
- funMap["ROUND"] = "[@(]"
- return funMap
- }
- // 处理整个数据
- func handleDateSaveDataMap(dateList []string, realSaveDataMap, saveDataMap map[string]map[int]float64, edbInfoIdArr []*data_manage.EdbInfo, emptyType int) {
- var startDate, endDate string
- var startDateT, endDateT time.Time
- if emptyType == 2 || emptyType == 3 {
- for k, _ := range realSaveDataMap {
- if k > endDate {
- endDate = k
- }
- if k < startDate || startDate == "" {
- startDate = k
- }
- }
- startDateT, _ = time.ParseInLocation(utils.FormatDate, startDate, time.Local)
- endDateT, _ = time.ParseInLocation(utils.FormatDate, endDate, time.Local)
- }
- for _, date := range dateList {
- tmpDataMap := realSaveDataMap[date]
- for _, edbInfo := range edbInfoIdArr {
- tmpEdbInfoId := edbInfo.EdbInfoId // 当前指标id
- // 如果该日期不存在该指标数据,那么需要找寻前后日期的数据,进行填补
- if _, ok := tmpDataMap[tmpEdbInfoId]; !ok {
- //day := 0
- //switch edbInfo.Frequency {
- //case "周度":
- // day = 7
- //case "旬度":
- // day = 15
- //case "月度":
- // day = 30
- //case "季度":
- // day = 90
- //case "年度":
- // day = 365
- //}
- // 需求池 255 指标运算文案修改,补数据遍历区间修改(2023-3-7 09:37:23修改)
- switch emptyType {
- case 0:
- handleDateDataMap(realSaveDataMap, saveDataMap, date, tmpEdbInfoId, 35)
- case 2:
- handleDateDataMapBefore(realSaveDataMap, saveDataMap, date, tmpEdbInfoId, startDateT, endDateT)
- case 3:
- handleDateDataMapAfter(realSaveDataMap, saveDataMap, date, tmpEdbInfoId, startDateT, endDateT)
- case 4:
- handleDateDataMapZero(saveDataMap, date, tmpEdbInfoId)
- }
- }
- }
- }
- }
- // handleDataMap 处理单个日期的数据
- func handleDateDataMap(realSaveDataMap, saveDataMap map[string]map[int]float64, date string, edbInfoId, day int) {
- currDate, _ := time.ParseInLocation(utils.FormatDate, date, time.Local)
- // 后一天
- nextDateDayStr := currDate.AddDate(0, 0, 1).Format(utils.FormatDate)
- // 前一天
- preDateDayStr := currDate.AddDate(0, 0, -1).Format(utils.FormatDate)
- for i := 1; i <= day; i++ {
- // 下个日期的数据
- {
- if i >= 1 {
- nextDateDayStr = currDate.AddDate(0, 0, i).Format(utils.FormatDate)
- }
- if findDataMap, hasFindDataMap := realSaveDataMap[nextDateDayStr]; hasFindDataMap { // 下一个日期有数据
- if val, hasFindItem := findDataMap[edbInfoId]; hasFindItem {
- saveDataMap[date][edbInfoId] = val
- return
- }
- }
- }
- // 上个日期的数据
- {
- if i >= 1 {
- preDateDayStr = currDate.AddDate(0, 0, -i).Format(utils.FormatDate)
- }
- if findDataMap, hasFindDataMap := realSaveDataMap[preDateDayStr]; hasFindDataMap { // 下一个日期有数据
- if val, hasFindItem := findDataMap[edbInfoId]; hasFindItem {
- saveDataMap[date][edbInfoId] = val
- return
- }
- }
- }
- }
- }
- // handleDataByLinearRegression 插值法补充数据(线性方程式)
- func handleDataByLinearRegression(edbInfoDataList []*data_manage.EdbDataList, handleDataMap map[string]float64) (err error) {
- if len(edbInfoDataList) < 2 {
- return
- }
- var startEdbInfoData *data_manage.EdbDataList
- for _, v := range edbInfoDataList {
- handleDataMap[v.DataTime] = v.Value
- // 第一个数据就给过滤了,给后面的试用
- if startEdbInfoData == nil {
- startEdbInfoData = v
- continue
- }
- // 获取两条数据之间相差的天数
- startDataTime, _ := time.ParseInLocation(utils.FormatDate, startEdbInfoData.DataTime, time.Local)
- currDataTime, _ := time.ParseInLocation(utils.FormatDate, v.DataTime, time.Local)
- betweenHour := int(currDataTime.Sub(startDataTime).Hours())
- betweenDay := betweenHour / 24
- // 如果相差一天,那么过滤
- if betweenDay <= 1 {
- startEdbInfoData = v
- continue
- }
- // 生成线性方程式
- var a, b float64
- {
- coordinateData := make([]utils.Coordinate, 0)
- tmpCoordinate1 := utils.Coordinate{
- X: 1,
- Y: startEdbInfoData.Value,
- }
- coordinateData = append(coordinateData, tmpCoordinate1)
- tmpCoordinate2 := utils.Coordinate{
- X: float64(betweenDay) + 1,
- Y: v.Value,
- }
- coordinateData = append(coordinateData, tmpCoordinate2)
- a, b = utils.GetLinearResult(coordinateData)
- if math.IsNaN(a) || math.IsNaN(b) {
- err = errors.New("线性方程公式生成失败")
- return
- }
- }
- // 生成对应的值
- {
- for i := 1; i < betweenDay; i++ {
- tmpDataTime := startDataTime.AddDate(0, 0, i)
- aDecimal := decimal.NewFromFloat(a)
- xDecimal := decimal.NewFromInt(int64(i) + 1)
- bDecimal := decimal.NewFromFloat(b)
- val, _ := aDecimal.Mul(xDecimal).Add(bDecimal).Round(4).Float64()
- handleDataMap[tmpDataTime.Format(utils.FormatDate)] = val
- }
- }
- startEdbInfoData = v
- }
- return
- }
- // HandleDataByLinearRegression 插值法补充数据(线性方程式)
- func HandleDataByLinearRegression(edbInfoDataList []*data_manage.EdbDataList, handleDataMap map[string]float64) (err error) {
- return handleDataByLinearRegression(edbInfoDataList, handleDataMap)
- }
- // CallCalculateComputeCorrelation 调用计算拟合残差的相关系数
- func CallCalculateComputeCorrelation(data *data_manage.EdbInfoCalculateBatchSaveReqByEdbLib, lang string) (val string, err error, errMsg string) {
- errMsg = "计算失败"
- // 调用指标库去更新
- reqJson, err := json.Marshal(data)
- if err != nil {
- errMsg = "计算相关系数参数解析异常!"
- err = errors.New("参数解析失败,Err:" + err.Error())
- return
- }
- respItem, err := CalculateComputeCorrelation(string(reqJson), lang)
- if err != nil {
- return
- }
- if respItem.Ret == 200 {
- val = respItem.Data
- }
- return
- }
- // handleDateDataMapBefore 前值填充:空值优先以最近的前值填充,没有前值时,用后值填充
- func handleDateDataMapBefore(realSaveDataMap, saveDataMap map[string]map[int]float64, date string, edbInfoId int, startDateT, endDateT time.Time) {
- currDate, _ := time.ParseInLocation(utils.FormatDate, date, time.Local)
- // 后一天
- nextDateDay := currDate
- // 前一天
- preDateDay := currDate
- for i := 1; preDateDay.After(startDateT) || preDateDay == startDateT; i++ {
- // 上个日期的数据
- {
- preDateDay = currDate.AddDate(0, 0, -i)
- preDateDayStr := preDateDay.Format(utils.FormatDate)
- if findDataMap, hasFindDataMap := realSaveDataMap[preDateDayStr]; hasFindDataMap { // 下一个日期有数据
- if val, hasFindItem := findDataMap[edbInfoId]; hasFindItem {
- fmt.Println(fmt.Sprintf("date:%s, 无值,取%s的值%.4f", date, preDateDayStr, val))
- saveDataMap[date][edbInfoId] = val
- return
- }
- }
- }
- }
- for i := 1; nextDateDay.Before(endDateT) || nextDateDay == endDateT; i++ {
- // 下个日期的数据
- {
- nextDateDay = currDate.AddDate(0, 0, i)
- nextDateDayStr := nextDateDay.Format(utils.FormatDate)
- if findDataMap, hasFindDataMap := realSaveDataMap[nextDateDayStr]; hasFindDataMap { // 下一个日期有数据
- if val, hasFindItem := findDataMap[edbInfoId]; hasFindItem {
- fmt.Println(fmt.Sprintf("date:%s, 无值,取%s的值%.4f", date, nextDateDayStr, val))
- saveDataMap[date][edbInfoId] = val
- return
- }
- }
- }
- }
- return
- }
- // handleDateDataMapAfter 后值填充:空值优先以最近的后值填充,没有后值时,用前值填充
- func handleDateDataMapAfter(realSaveDataMap, saveDataMap map[string]map[int]float64, date string, edbInfoId int, startDateT, endDateT time.Time) {
- currDate, _ := time.ParseInLocation(utils.FormatDate, date, time.Local)
- // 后一天
- nextDateDay := currDate
- // 前一天
- preDateDay := currDate
- for i := 1; nextDateDay.Before(endDateT) || nextDateDay == endDateT; i++ {
- // 下个日期的数据
- {
- nextDateDay = currDate.AddDate(0, 0, i)
- nextDateDayStr := nextDateDay.Format(utils.FormatDate)
- if findDataMap, hasFindDataMap := realSaveDataMap[nextDateDayStr]; hasFindDataMap { // 下一个日期有数据
- if val, hasFindItem := findDataMap[edbInfoId]; hasFindItem {
- fmt.Println(fmt.Sprintf("date:%s, 无值,取%s的值%.4f", date, nextDateDayStr, val))
- saveDataMap[date][edbInfoId] = val
- return
- }
- }
- }
- }
- for i := 1; preDateDay.After(startDateT) || preDateDay == startDateT; i++ {
- // 上个日期的数据
- {
- preDateDay = currDate.AddDate(0, 0, -i)
- preDateDayStr := preDateDay.Format(utils.FormatDate)
- if findDataMap, hasFindDataMap := realSaveDataMap[preDateDayStr]; hasFindDataMap { // 下一个日期有数据
- if val, hasFindItem := findDataMap[edbInfoId]; hasFindItem {
- fmt.Println(fmt.Sprintf("date:%s, 无值,取%s的值%.4f", date, preDateDayStr, val))
- saveDataMap[date][edbInfoId] = val
- return
- }
- }
- }
- }
- return
- }
- // handleDateDataMapZero 等于0
- func handleDateDataMapZero(saveDataMap map[string]map[int]float64, date string, edbInfoId int) {
- saveDataMap[date][edbInfoId] = 0
- return
- }
- func GetMaxMinEdbInfo(formula string) string {
- //formula := "A+min(A,B,max(A,C))"
- // todo 无法处理max里嵌套max或者min的情况
- // 使用正则表达式匹配MAX和MIN函数及其参数
- regex := regexp.MustCompile(`(?i)(MAX|MIN)\((.*?)\)`)
- matches := regex.FindAllStringSubmatch(formula, -1)
- // 遍历匹配结果,输出MAX和MIN函数及其参数
- for _, match := range matches {
- if len(match) == 3 {
- parameter := strings.ToLower(match[0]) // 参数
- formula = strings.ReplaceAll(formula, match[0], parameter)
- fmt.Printf("formula: %s\n", formula)
- }
- }
- formula = strings.ReplaceAll(formula, "max", "MAX")
- formula = strings.ReplaceAll(formula, "min", "MIN")
- return formula
- }
- // HandleDataByLinearRegressionToList 插值法补充数据(线性方程式)
- func HandleDataByLinearRegressionToList (edbInfoDataList []*data_manage.EdbDataList, handleDataMap map[string]float64) (dataTimeList []string,valueList []float64, err error) {
- if len(edbInfoDataList) < 2 {
- return
- }
- var startEdbInfoData *data_manage.EdbDataList
- for _, v := range edbInfoDataList {
- handleDataMap[v.DataTime] = v.Value
- dataTimeList = append(dataTimeList, v.DataTime)
- // 第一个数据就给过滤了,给后面的试用
- if startEdbInfoData == nil {
- startEdbInfoData = v
- //startEdbInfoData.DataTime = startEdbInfoData.DataTime[:5]+ "01-01"
- continue
- }
- // 获取两条数据之间相差的天数
- startDataTime, _ := time.ParseInLocation(utils.FormatDate, startEdbInfoData.DataTime, time.Local)
- currDataTime, _ := time.ParseInLocation(utils.FormatDate, v.DataTime, time.Local)
- betweenHour := int(currDataTime.Sub(startDataTime).Hours())
- betweenDay := betweenHour / 24
- // 如果相差一天,那么过滤
- if betweenDay <= 1 {
- startEdbInfoData = v
- continue
- }
- // 生成线性方程式
- var a, b float64
- {
- coordinateData := make([]utils.Coordinate, 0)
- tmpCoordinate1 := utils.Coordinate{
- X: 1,
- Y: startEdbInfoData.Value,
- }
- coordinateData = append(coordinateData, tmpCoordinate1)
- tmpCoordinate2 := utils.Coordinate{
- X: float64(betweenDay) + 1,
- Y: v.Value,
- }
- coordinateData = append(coordinateData, tmpCoordinate2)
- a, b = utils.GetLinearResult(coordinateData)
- if math.IsNaN(a) || math.IsNaN(b) {
- err = errors.New("线性方程公式生成失败")
- return
- }
- }
- // 生成对应的值
- {
- for i := 1; i < betweenDay; i++ {
- tmpDataTime := startDataTime.AddDate(0, 0, i)
- aDecimal := decimal.NewFromFloat(a)
- xDecimal := decimal.NewFromInt(int64(i) + 1)
- bDecimal := decimal.NewFromFloat(b)
- val, _ := aDecimal.Mul(xDecimal).Add(bDecimal).Round(4).Float64()
- handleDataMap[tmpDataTime.Format(utils.FormatDate)] = val
- dataTimeList = append(dataTimeList, tmpDataTime.Format(utils.FormatDate))
- valueList = append(valueList, val)
- }
- }
- startEdbInfoData = v
- }
- return
- }
- // HandleDataByLinearRegressionToList 保证生成365个数据点的线性插值法
- func HandleDataByLinearRegressionToListV2(edbInfoDataList []*data_manage.EdbDataList, handleDataMap map[string]float64) (dataTimeList []string, valueList []float64, err error) {
- if len(edbInfoDataList) < 2 {
- return
- }
- // 确保至少有两天数据来生成线性方程
- if len(edbInfoDataList) < 2 {
- err = errors.New("至少需要两天的数据来执行线性插值")
- return
- }
- // 对数据按日期排序,确保顺序正确
- sort.Slice(edbInfoDataList, func(i, j int) bool {
- t1, _ := time.ParseInLocation(utils.FormatDate, edbInfoDataList[i].DataTime, time.Local)
- t2, _ := time.ParseInLocation(utils.FormatDate, edbInfoDataList[j].DataTime, time.Local)
- return t1.Before(t2)
- })
- startEdbInfoData := edbInfoDataList[0]
- endEdbInfoData := edbInfoDataList[len(edbInfoDataList)-1]
- // 计算起始和结束日期间实际的天数
- startDate, _ := time.ParseInLocation(utils.FormatDate, startEdbInfoData.DataTime, time.Local)
- endDate, _ := time.ParseInLocation(utils.FormatDate, endEdbInfoData.DataTime, time.Local)
- actualDays := endDate.Sub(startDate).Hours() / 24
- // 生成365个数据点,首先处理已有数据
- for _, v := range edbInfoDataList {
- handleDataMap[v.DataTime] = v.Value
- dataTimeList = append(dataTimeList, v.DataTime)
- valueList = append(valueList, v.Value)
- }
- // 如果已有数据跨越天数不足365天,则对缺失的日期进行线性插值
- if actualDays < 365 {
- // 使用已有数据点生成线性方程(这里简化处理,实际可能需更细致处理边界情况)
- var a, b float64
- coordinateData := []utils.Coordinate{
- {X: 1, Y: startEdbInfoData.Value},
- {X: float64(len(edbInfoDataList)), Y: endEdbInfoData.Value},
- }
- a, b = utils.GetLinearResult(coordinateData)
- if math.IsNaN(a) || math.IsNaN(b) {
- err = errors.New("线性方程公式生成失败")
- return
- }
- // 对剩余日期进行插值
- for i := 1; i < 365; i++ {
- day := startDate.AddDate(0, 0, i)
- if _, exists := handleDataMap[day.Format(utils.FormatDate)]; !exists {
- aDecimal := decimal.NewFromFloat(a)
- xDecimal := decimal.NewFromInt(int64(i) + 1)
- bDecimal := decimal.NewFromFloat(b)
- val, _ := aDecimal.Mul(xDecimal).Add(bDecimal).Round(4).Float64()
- handleDataMap[day.Format(utils.FormatDate)] = val
- dataTimeList = append(dataTimeList, day.Format(utils.FormatDate))
- valueList = append(valueList, val)
- }
- }
- }
- return
- }
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