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r - summarizing a field based on the value of another field in dplyr

I have a data frame DF with four fields: id, date, feature, value. I would like to generate a data ... with dplyr using group_by and summarize. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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php - Convert .5 into 1/2

I want to convert any number which ends in .5 so that it displays as the number followed by ½, but I don ... "1/2" rather than "½" See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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html - My css looks messed up in IE

Need to make some kind of 'scheme'. It was working fine in Google Chrome but I hear now that it needs to ... a intranet server, if that matters. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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actionscript 3 - AS3 - Get JAVA Home path

I need to copy an extension on Java Home lib directory. But my problem is to find java home on ... with environnement variables. Best regards. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to retrieve posts(books) based on category(taxonomy) in wordpress?

I am trying to display posts of specific category(taxonomy) that is 'Book1'. I tried to display it with the ... output no any item is displayed. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How to rotate a vector in opengl?

I want to rotate my object,when I use glm::rotate. It can only rotate on X,Y,Z arrows. For example,Model = vec3(5, ... 3,0,0) Any API can I use? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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python - How to remove when scraping a page?

I have made a function by scraping a page and I run but the output gives . I used strip function to remove ... (find).extract())) yield items See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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php - I want to encrypt blob using SHA in javascript

I want to encrypt blog using SHA in javascript so that I can send the encrypted blob chunk to server and where I can decrypt it. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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amazon web services - AWS CLI script to change security group of EC2 to match currently assigned IP address when using VPN to obfuscate network traffic?

If I'm using a VPN service that dynamically changes my IP address, is there a way to write a script that ... VPN provider changes my IP address? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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laravel - define vue application in blade component

I have navigation component reused in multiple blade pages with some modification. so I used: <script> window.app = new ... ... }); </script> See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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windows ce - can anyone debug this code for me regarding a watchdog timer in win ce?

#include <windows.h> #include <pkfuncs.h> #define WATCHDOG_NAME L"wd_critproc" #define WATCHDOG_PERIOD 5000 // milliseconds ... ; return 0; } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to format Simple Date Formatter in Java as dd-3 letter month-yyyy?

I have a simple date formatter with the following format: private static final String DATE_FORMAT = "yyyy-MM- ... custom date formatter method? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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vba - "Object doesn't support this option" Error 445 in VB Code

I am trying to make this code work. It gives the runtime error. Any help on how to fix it will ... Invalid: ToggleStuff True End Function See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - Split string into list of string

I have a string which is 28000 lines long and is laid out like below: List<string> sQuerys = new List<string>(); ... ADD TO sQuerys in here. } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c++ - C Looping a switch using Y/N options. Choosing N doesn't close the program

I've only started coding C. (freshman here, no experience, only basic html) For some reason, whenever I choose the ... } getchar(); getchar(); } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ruby - What constitutes a stack level too deep error? Code Kata

I have this code which I am trying to combine but I keep getting a stack level too deep error: def zeros(n) ... a 12, I will get 2 #479001600 See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How do I query between two time range when time was divided as start and end time using MySQL?

How do I query between two time range using MySQL? it is similar to this question provided in the above link ... for bad English, please help See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ios - UITableViewCell Checkmark Being Added to multiple rows when one is tapped

I have a tableview where not all of the cells are visible at once. I am trying to make it so that when ... c post to solve my problem. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to create a Sports Bet Calculator using javascript

I have created this simple straight bet calculator using JavaScript. It allows me to calculate, if it is a winning ... "Enter Money Line"))); See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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php - Cannot redeclare get_class() error

I'm trying to apply the class effect into input type="submit" whenever its parent form action contains the string special ... > </body> </HTML> See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - React useEffect missing dependecy?

Normally ? take a warning like that , React Hook useEffect has a missing dependency: 'loadAllAbout'. Either include it ... What i have to do ? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - Procedure not working because of unresolved reference to object

I'm writing a WPF application where at some point I'm trying to add new row to my database through procedure like below ... ) ); -- End of file. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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how to create a list of elements from an XML file in python

my XML <root> - <Book category="Children"> <title>Harry Potter</title> <author>J.K</author> <year> ... elemnt of the list BookInfo thanks See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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excel - Send only those emails that have attachments by way of a VBA code

I've just started working on macros and have made a pretty decent progress so far. However, I'm stuck in a ... send End With Next X End Sub See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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jquery - Automatically adding links to files in a folder in JavaScript

If it's possible, can some one please help me with this. I made YouTube for example. As you see in this PLNKR LINK ... </div> How can I do that? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Angular 2 onclick add new item in array

I need to create new list item(value from api)on button press but don't know how to do it. Any help please? here is ... (res => res.json()); } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - Process unstructured and multiple line CSV in hadoop

I would like to process data in Hadoop Mapreduce, I am having data below format with unstructured, multiple line and un ... in advance!!!!!!! See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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mysql - Display database structure from Delphi (rad studio)

Here is my procedure. When I execute it nothing happens; why is this? FData.FDQuery1.SQL.Clear; FData.FDQuery1.SQL ... Fields[0].ToString); end; See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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