Recent questions tagged HOW

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how to start a for loop in R programming

I'm new to programming and I wrote a code that finds spam words for the first email but I would like to write a ... [[ 1 ]]$header[ "Subject"]) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to open chrome in incognito mode from Python

This works, in powershell: Start-Process chrome.exe -ArgumentList @( '-incognito', 'www.foo.com' ) How can this be achieved from Python? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to download a filefield file in django view

I have filefield in my django model: file=models.FileField(verbose_name=u'附件',upload_to='attachment/%Y/%m/%d', ... the view? Thanks in advance! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to get the event that switch tab menu on iphone

I'm trying to figure out how to catch the event that controls the switch tabs on the UITabBarController. How could I accomplish this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to download and display an image from an URL in R?

My goal is to download an image from an URL and then display it in R. I got an URL and figured out ... must be matrix-like Any suggestions? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to get all objects of a given type in javascript

I want to retrieve all objects (not DOM elements) of a given type created with the "new" keyword. Is it ... reference to all the foo objects ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to direct output into a txt file in python in windows

import itertools variations = itertools.product('abc', repeat=3) for variations in variations: variation_string = "" ... (on windows platform)? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to bulk insert in sqlite in android

I am using SQLiteOpenHelper for data insertion. I need to insert 2500 id and 2500 names, So it takes too much time. ... (i).getCityname()); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to display progressbar during downloading video file from the server in to the iphone?

I have implemented video play functionality in iphone.In which i am downloading video file from the server and ... query. Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to trigger an action in parent JPanel when a component in a child JPanel is updated (Java Swing)

I am trying to build an MVC application in Java Swing. I have a JPanel that contains four JComboBoxes and this JPanel is ... 's model?"); } } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to find out list of all changed files in git for full jenkins build and not for a particular commit?

How to find all changed files since last commited build in GIT ? I want to build not only the changed files at head ... at X SHA-1 id ? Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how do you connect to a remote server with ssh in R

Is it possible to connect to remote ssh server with username and password and read a file? I've done some ... . I'd appreciate any insight. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how do I modify the system path variable in python script?

I'm trying to run a python script from cron, but its not running properly so I'm assuming its the ... the variable within a python script? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to embed html files in php code?

I have many html files and now i want to call each of the files one by one using some php code. but ... Any suggestions will be appreciated... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to compare two string dates in javascript?

I have two string dates in the format of m/d/yyyy. For example, 11/1/2012 , 1/2/2013 . I am ... do I write a JavaScript function for this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how do i decode/encode the url parameters for the new google maps?

Im trying to figure out how to extract the lat/long of the start/end in a google maps directions link that ... their XY prefixes. ideas? thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to effectively run two inequality filters on queries in app engine

I'm aware that app engine has the restriction of "Inequality Filters Are Allowed On One Property Only" as ... some example code to demonstrate? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how calculate java array memory usage

If I have: int c[] = new int[10]; and int a[][] = new int[2][3]; and in generally ... memory usage considering also the references variables? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to to terminate process using python's multiprocessing

I have some code that needs to run against several other systems that may hang or have problems not under my control. ... += 1 time.sleep(1) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to use sendinput function C++

I have no idea about what parameters are inputted even though I saw the sendinput function from msdn. UINT ... that may be frequently used? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to set java library path for processing

I'm using PDE to run a Processing sketch, and I get the following error: Verify that the java.library.path ... me how to solve this problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to find seconds since 1970 in java

iam working with a real time project where i got a requirement to find seconds since 1970 january 1.I have used ... this is very useful to me. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to get hash code of a string in c++

Following java code returns hash code of a string. String uri = "Some URI" public int hashCode() { return uri ... an easy way to translate this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to maintain session in cURL in php?

how can we maintain session in cURL? i'am having a code the sends login details of a site and logs in ... ($socket); curl_close($socket); ?> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to access global/outer scope variable from R apply function?

I can't seem to make apply function access/modify a variable that is declared outside... what gives? x = data.frame(age=c ... =110 i=0 y=0, z=0 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to read huge csv file into R by row condition?

I have a huge csv file about 15 million row, with size around 3G. I would like to read this file into R ... R solution can solve my problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to get color at the spot(or pixel) of a image on touch event in android

I want to get the color of the spot or pixel where I will touch a image in Android. I searched a lot on ... got nothing. Please anyone help me. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how do i add a system call / utility in xv6

Can any one tell me/ point me any references to how to add a system call / utility in XV6 exhaustive ... start with any help greatly appreciated See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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