主頁 > .NET開發 > 使用forlinein和.appendin回圈重構、填充.csv中的空白

使用forlinein和.appendin回圈重構、填充.csv中的空白

2022-04-22 22:17:25 .NET開發

請幫助我累了。不明白為什么要讓它作業。

要解決的問題:一個 .csv 檔案必須有 1 秒的資料,例如:

time,open,high,low,close,Extremum,Fib 1,Fib 2,Fib 3,l100
2022-04-03 02:00:00,3.294,3.294,3.294,3.294,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:04,3.294,3.295,3.292,3.292,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:05,3.293,3.293,3.292,3.292,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:07,3.293,3.293,3.293,3.293,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:08,3.293,3.293,3.293,3.293,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:09,3.292,3.292,3.292,3.292,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634

但事實并非如此。有些秒不存在,所以我用最后一次看到的資料制作它基本上讀取一行:

sep = ','    
data = line.split(sep)

和 data[1] 到 data[9] 保持不變,只有 data[0] 變化 1 秒,以填補空白:

time,open,high,low,close,Extremum,Fib 1,Fib 2,Fib 3,l100
2022-04-03 02:00:00,3.294,3.294,3.294,3.294,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:01,3.294,3.294,3.294,3.294,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:02,3.294,3.294,3.294,3.294,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:03,3.294,3.294,3.294,3.294,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:04,3.294,3.295,3.292,3.292,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:05,3.293,3.293,3.292,3.292,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:06,3.293,3.293,3.292,3.292,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:07,3.293,3.293,3.293,3.293,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:08,3.293,3.293,3.293,3.293,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:09,3.292,3.292,3.292,3.292,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634

我為此制定了邏輯,只是 .append 讓我有技巧..輸出是源 csv 檔案中的每一行,它在輸出 csv 檔案中產生相同數量的行,但所有記錄都具有相同的最后一行一個源檔案,什么是 f,:

time,open,high,low,close,Extremum,Fib 1,Fib 2,Fib 3,l100
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634
2022-04-03 02:00:18,3.289,3.289,3.289,3.289,3.277,3.332898006846162,3.348093581522788,3.357138566449352,3.367449849265634

為什么yyyyy,代碼如下:

import glob
import datetime
import time
import pandas as pd

# make files sync on sec's

filenames = [i for i in glob.glob("*unique_sorted.csv")]

for filename in filenames:
    coin_name = filename[0:18] 
    print(filename)
    with open (filename, "r") as f:                     
        x = -1
        memory = {}
        memory["data"] = {}
        memory["data"]["time"] = {}
        
        new_file = []
        tolist = {}
        tolist["total"] = {}
        tolist["memory"] = {}
        sep = ','
        start = 1
        for line in f:
            data = line.split(sep)
            if data[0] != "time":
                x = x   1
                if start == 0 and data[0][0:19] != sec_1_more:
                    memory_time = datetime.datetime.strptime(tolist["memory"]['time'], "%Y-%m-%d %H:%M:%S") # data[0] from previous line
                    read_line_time = datetime.datetime.strptime(data[0][0:19], "%Y-%m-%d %H:%M:%S") # current_line
                    diff = read_line_time - sec_1_more
                    diff_sec = diff.total_seconds()
                    sec = int(diff_sec)
                    i = 1
                    while i < sec:
                        time_for_same_data = memory_time   datetime.timedelta(seconds=1) # 2:00:00   1 second
                        time_for_same_data_str = str(time_for_same_data)
                        #2022-04-03 02:00:04,1.4073,1.4073,1.4071,1.4072,1.375,1.4137077251573131,1.4242302135495926,1.4304935994973778,1.437633859477853
                        tolist["total"]['time'] = time_for_same_data_str
                        tolist["total"]['open'] = data[1]
                        tolist["total"]['high'] = data[2]
                        tolist["total"]['low'] = data[3]
                        tolist["total"]['close'] = data[4]
                        tolist["total"]['Extremum'] = data[5]
                        tolist["total"]['Fib 1'] = data[6]
                        tolist["total"]['Fib 2'] = data[7]
                        tolist["total"]['Fib 3'] = data[8]
                        tolist["total"]['l100'] = data[9].strip()
                        new_file.append(tolist["total"])
                        memory_time = memory_time   datetime.timedelta(seconds=1)
                        i = i   1
                    tolist["total"]['time'] = data[0]
                    tolist["total"]['open'] = data[1]
                    tolist["total"]['high'] = data[2]
                    tolist["total"]['low'] = data[3]
                    tolist["total"]['close'] = data[4]
                    tolist["total"]['Extremum'] = data[5]
                    tolist["total"]['Fib 1'] = data[6]
                    tolist["total"]['Fib 2'] = data[7]
                    tolist["total"]['Fib 3'] = data[8]
                    tolist["total"]['l100'] = data[9].strip()
                    new_file.append(tolist["total"])
                    
                elif start == 0 and data[0][0:19] == sec_1_more:
                    tolist["total"]['time'] = data[0]
                    tolist["total"]['open'] = data[1]
                    tolist["total"]['high'] = data[2]
                    tolist["total"]['low'] = data[3]
                    tolist["total"]['close'] = data[4]
                    tolist["total"]['Extremum'] = data[5]
                    tolist["total"]['Fib 1'] = data[6]
                    tolist["total"]['Fib 2'] = data[7]
                    tolist["total"]['Fib 3'] = data[8]
                    tolist["total"]['l100'] = data[9].strip()
                    new_file.append(tolist["total"])
                    

                memory["data"]["data"] = str(line)
                memory["data"]["time"] = str(data[0][0:19]) 
                
                tolist["memory"]['time'] = data[0]
                tolist["memory"]['open'] = data[1]
                tolist["memory"]['high'] = data[2]
                tolist["memory"]['low'] = data[3]
                tolist["memory"]['close'] = data[4]
                tolist["memory"]['Extremum'] = data[5]
                tolist["memory"]['Fib 1'] = data[6]
                tolist["memory"]['Fib 2'] = data[7]
                tolist["memory"]['Fib 3'] = data[8]
                tolist["memory"]['l100'] = data[9].strip()
                
                #t = "2022-04-03 02:00:04"
                t = datetime.datetime.strptime(memory["data"]["time"], "%Y-%m-%d %H:%M:%S")
                #sec_1_more = (t   datetime.timedelta(seconds=1)).strftime("%Y-%m-%d %H:%M:%S")
                #or
                sec_1_more = t   datetime.timedelta(seconds=1)
                
                if start == 1:
                    new_file.append(tolist["memory"])
                
                start = 0
                
                if x == 10:
                    #print(new_file)
                    #quit()
                    break # for test to see only 10 first
    f.close() # needed      
    csvData = pd.DataFrame(new_file)
    csvData.to_csv(coin_name "_unique_sorted_synced.csv", mode="w", index=False)                            
    quit() # coz just one file processing for testing

uj5u.com熱心網友回復:

看起來你可以讀入資料,并使用asfreq


# instead of read_clipboard, you'd read it with pd.read_csv
df = pd.read_clipboard(sep=',', parse_dates = ['time']) 

df.set_index('time').asfreq(freq='1S').ffill()

                      open   high    low  close  Extremum     Fib 1     Fib 2     Fib 3     l100
time
2022-04-03 02:00:00  3.294  3.294  3.294  3.294     3.277  3.332898  3.348094  3.357139  3.36745
2022-04-03 02:00:01  3.294  3.294  3.294  3.294     3.277  3.332898  3.348094  3.357139  3.36745
2022-04-03 02:00:02  3.294  3.294  3.294  3.294     3.277  3.332898  3.348094  3.357139  3.36745
2022-04-03 02:00:03  3.294  3.294  3.294  3.294     3.277  3.332898  3.348094  3.357139  3.36745
2022-04-03 02:00:04  3.294  3.295  3.292  3.292     3.277  3.332898  3.348094  3.357139  3.36745
2022-04-03 02:00:05  3.293  3.293  3.292  3.292     3.277  3.332898  3.348094  3.357139  3.36745
2022-04-03 02:00:06  3.293  3.293  3.292  3.292     3.277  3.332898  3.348094  3.357139  3.36745
2022-04-03 02:00:07  3.293  3.293  3.293  3.293     3.277  3.332898  3.348094  3.357139  3.36745
2022-04-03 02:00:08  3.293  3.293  3.293  3.293     3.277  3.332898  3.348094  3.357139  3.36745
2022-04-03 02:00:09  3.292  3.292  3.292  3.292     3.277  3.332898  3.348094  3.357139  3.36745

轉載請註明出處,本文鏈接:https://www.uj5u.com/net/461471.html

標籤:Python 熊猫 数据框 CSV 附加

上一篇:如何使用java從.csv檔案中洗掉任何特殊字符

下一篇:如何讀取csv檔案中的特定列?

標籤雲
其他(157675) Python(38076) JavaScript(25376) Java(17977) C(15215) 區塊鏈(8255) C#(7972) AI(7469) 爪哇(7425) MySQL(7132) html(6777) 基礎類(6313) sql(6102) 熊猫(6058) PHP(5869) 数组(5741) R(5409) Linux(5327) 反应(5209) 腳本語言(PerlPython)(5129) 非技術區(4971) Android(4554) 数据框(4311) css(4259) 节点.js(4032) C語言(3288) json(3245) 列表(3129) 扑(3119) C++語言(3117) 安卓(2998) 打字稿(2995) VBA(2789) Java相關(2746) 疑難問題(2699) 细绳(2522) 單片機工控(2479) iOS(2429) ASP.NET(2402) MongoDB(2323) 麻木的(2285) 正则表达式(2254) 字典(2211) 循环(2198) 迅速(2185) 擅长(2169) 镖(2155) 功能(1967) .NET技术(1958) Web開發(1951) python-3.x(1918) HtmlCss(1915) 弹簧靴(1913) C++(1909) xml(1889) PostgreSQL(1872) .NETCore(1853) 谷歌表格(1846) Unity3D(1843) for循环(1842)

熱門瀏覽
  • WebAPI簡介

    Web體系結構: 有三個核心:資源(resource),URL(統一資源識別符號)和表示 他們的關系是這樣的:一個資源由一個URL進行標識,HTTP客戶端使用URL定位資源,表示是從資源回傳資料,媒體型別是資源回傳的資料格式。 接下來我們說下HTTP. HTTP協議的系統是一種無狀態的方式,使用請求/ ......

    uj5u.com 2020-09-09 22:07:47 more
  • asp.net core 3.1 入口:Program.cs中的Main函式

    本文分析Program.cs 中Main()函式中代碼的運行順序分析asp.net core程式的啟動,重點不是剖析原始碼,而是理清程式開始時執行的順序。到呼叫了哪些實體,哪些法方。asp.net core 3.1 的程式入口在專案Program.cs檔案里,如下。ususing System; us ......

    uj5u.com 2020-09-09 22:07:49 more
  • asp.net網站作為websocket服務端的應用該如何寫

    最近被websocket的一個問題困擾了很久,有一個需求是在web網站中搭建websocket服務。客戶端通過網頁與服務器建立連接,然后服務器根據ip給客戶端網頁發送資訊。 其實,這個需求并不難,只是剛開始對websocket的內容不太了解。上網搜索了一下,有通過asp.net core 實作的、有 ......

    uj5u.com 2020-09-09 22:08:02 more
  • ASP.NET 開源匯入匯出庫Magicodes.IE Docker中使用

    Magicodes.IE在Docker中使用 更新歷史 2019.02.13 【Nuget】版本更新到2.0.2 【匯入】修復單列匯入的Bug,單元測驗“OneColumnImporter_Test”。問題見(https://github.com/dotnetcore/Magicodes.IE/is ......

    uj5u.com 2020-09-09 22:08:05 more
  • 在webform中使用ajax

    如果你用過Asp.net webform, 說明你也算是.NET 開發的老兵了。WEBform應該是2011 2013左右,當時還用visual studio 2005、 visual studio 2008。后來基本都用的是MVC。 如果是新開發的專案,估計沒人會用webform技術。但是有些舊版 ......

    uj5u.com 2020-09-09 22:08:50 more
  • iis添加asp.net網站,訪問提示:由于擴展配置問題而無法提供您請求的

    今天在iis服務器配置asp.net網站,遇到一個問題,記錄一下: 問題:由于擴展配置問題而無法提供您請求的頁面。如果該頁面是腳本,請添加處理程式。如果應下載檔案,請添加 MIME 映射。 WindowServer2012服務器,添加角色安裝完.netframework和iis之后,運行aspx頁面 ......

    uj5u.com 2020-09-09 22:10:00 more
  • WebAPI-處理架構

    帶著問題去思考,大家好! 問題1:HTTP請求和回傳相應的HTTP回應資訊之間發生了什么? 1:首先是最底層,托管層,位于WebAPI和底層HTTP堆疊之間 2:其次是 訊息處理程式管道層,這里比如日志和快取。OWIN的參考是將訊息處理程式管道的一些功能下移到堆疊下端的OWIN中間件了。 3:控制器處理 ......

    uj5u.com 2020-09-09 22:11:13 more
  • 微信門戶開發框架-使用指導說明書

    微信門戶應用管理系統,采用基于 MVC + Bootstrap + Ajax + Enterprise Library的技術路線,界面層采用Boostrap + Metronic組合的前端框架,資料訪問層支持Oracle、SQLServer、MySQL、PostgreSQL等資料庫。框架以MVC5,... ......

    uj5u.com 2020-09-09 22:15:18 more
  • WebAPI-HTTP編程模型

    帶著問題去思考,大家好!它是什么?它包含什么?它能干什么? 訊息 HTTP編程模型的核心就是訊息抽象,表示為:HttPRequestMessage,HttpResponseMessage.用于客戶端和服務端之間交換請求和回應訊息。 HttpMethod類包含了一組靜態屬性: private stat ......

    uj5u.com 2020-09-09 22:15:23 more
  • 部署WebApi隨筆

    一、跨域 NuGet參考Microsoft.AspNet.WebApi.Cors WebApiConfig.cs中配置: // Web API 配置和服務 config.EnableCors(new EnableCorsAttribute("*", "*", "*")); 二、清除默認回傳XML格式 ......

    uj5u.com 2020-09-09 22:15:48 more
最新发布
  • C#多執行緒學習(二) 如何操縱一個執行緒

    <a href="https://www.cnblogs.com/x-zhi/" target="_blank"><img width="48" height="48" class="pfs" src="https://pic.cnblogs.com/face/2943582/20220801082530.png" alt="" /></...

    uj5u.com 2023-04-19 09:17:20 more
  • C#多執行緒學習(二) 如何操縱一個執行緒

    C#多執行緒學習(二) 如何操縱一個執行緒 執行緒學習第一篇:C#多執行緒學習(一) 多執行緒的相關概念 下面我們就動手來創建一個執行緒,使用Thread類創建執行緒時,只需提供執行緒入口即可。(執行緒入口使程式知道該讓這個執行緒干什么事) 在C#中,執行緒入口是通過ThreadStart代理(delegate)來提供的 ......

    uj5u.com 2023-04-19 09:16:49 more
  • 記一次 .NET某醫療器械清洗系統 卡死分析

    <a href="https://www.cnblogs.com/huangxincheng/" target="_blank"><img width="48" height="48" class="pfs" src="https://pic.cnblogs.com/face/214741/20200614104537.png" alt="" /&g...

    uj5u.com 2023-04-18 08:39:04 more
  • 記一次 .NET某醫療器械清洗系統 卡死分析

    一:背景 1. 講故事 前段時間協助訓練營里的一位朋友分析了一個程式卡死的問題,回過頭來看這個案例比較經典,這篇稍微整理一下供后來者少踩坑吧。 二:WinDbg 分析 1. 為什么會卡死 因為是表單程式,理所當然就是看主執行緒此時正在做什么? 可以用 ~0s ; k 看一下便知。 0:000> k # ......

    uj5u.com 2023-04-18 08:33:10 more
  • SignalR, No Connection with that ID,IIS

    <a href="https://www.cnblogs.com/smartstar/" target="_blank"><img width="48" height="48" class="pfs" src="https://pic.cnblogs.com/face/u36196.jpg" alt="" /></a>...

    uj5u.com 2023-03-30 17:21:52 more
  • 一次對pool的誤用導致的.net頻繁gc的診斷分析

    <a href="https://www.cnblogs.com/dotnet-diagnostic/" target="_blank"><img width="48" height="48" class="pfs" src="https://pic.cnblogs.com/face/3115652/20230225090434.png" alt=""...

    uj5u.com 2023-03-28 10:15:33 more
  • 一次對pool的誤用導致的.net頻繁gc的診斷分析

    <a href="https://www.cnblogs.com/dotnet-diagnostic/" target="_blank"><img width="48" height="48" class="pfs" src="https://pic.cnblogs.com/face/3115652/20230225090434.png" alt=""...

    uj5u.com 2023-03-28 10:13:31 more
  • C#遍歷指定檔案夾中所有檔案的3種方法

    <a href="https://www.cnblogs.com/xbhp/" target="_blank"><img width="48" height="48" class="pfs" src="https://pic.cnblogs.com/face/957602/20230310105611.png" alt="" /></a&...

    uj5u.com 2023-03-27 14:46:55 more
  • C#/VB.NET:如何將PDF轉為PDF/A

    <a href="https://www.cnblogs.com/Carina-baby/" target="_blank"><img width="48" height="48" class="pfs" src="https://pic.cnblogs.com/face/2859233/20220427162558.png" alt="" />...

    uj5u.com 2023-03-27 14:46:35 more
  • 武裝你的WEBAPI-OData聚合查詢

    <a href="https://www.cnblogs.com/podolski/" target="_blank"><img width="48" height="48" class="pfs" src="https://pic.cnblogs.com/face/616093/20140323000327.png" alt="" /><...

    uj5u.com 2023-03-27 14:46:16 more