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Getting all combinations which sum up to 100 using R

I need to get all combinations for which the sum equal 100 using 8 variables that could take any value from 0 to 100 by ... 0 0 0 0 0 0 0 100 See Question&Answers more detail:os...

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

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jvm - programmatically setting max java heap size

Is there a way to set the max java heap size programmatically instead of as a vm argument? Something like: System ... heap variable>", "1000m"); See Question&Answers more detail:os...

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

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python - Matplotlib just giving error messages

I am trying to use Matplotlib. I have used it here at work before and it ran just fine. I am using the ... ' object has no attribute 'show' See Question&Answers more detail:os...

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

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rust - Do I have to implement a trait twice when implementing it for both reference and non-reference types?

I want to implement a trait for both a for reference and non-reference type. Do I have to implement the functions twice, ... .hi(); &bar.hi(); } See Question&Answers more detail:os...

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

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javascript - how to schedule ajax calls every N seconds?

If I want a whole page to reload every N seconds, I would put something like this in the HTML: meta http ... updated more often than others. TIA See Question&Answers more detail:os...

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

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html - jQuery Mobile Reusing a Header and Navigation

I'm new to jQuery Mobile and have having issues understanding reusing a header and general navigation. So I' ... would be appreciated. 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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xcodebuild - xcframework does not contain internal frameworks

I am trying to create an .xcframework file for a few third party libraries I'm using. Following the ... the way xcodebuild works anytime. See Question&Answers more detail:os...

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

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generics - Specify `Fn` trait bound on struct definition without fixing one of the `Fn` parameters

I have a struct that contains a function object: struct Foo<F> { func: F, } I want to add an Fn ... impl blocks, the compiler has difficulties. See Question&Answers more detail:os...

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c++ - Why infinite recursion leads to seg fault

Why infinite recursion leads to seg fault ? Why stack overflow leads to seg fault. I am looking for detailed explanation. ... main() { f(); } See Question&Answers more detail:os...

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Git ignores deleted file on merge

I have two repositories. From time to time, I want to merge the content of other into main. However the merge ... other. What am I doing wrong? See Question&Answers more detail:os...

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

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javascript - innerWidth and outerWidth oddness on desktop

Open the console in chrome (whilst on SO) and copy in innerWidth + "|"+outerWidth + "|" + screen.width ... explain any of the above observation. See Question&Answers more detail:os...

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python - nltk words corpus does not contain "okay"?

The NLTK word corpus does not have the phrase "okay", "ok", "Okay"? > from nltk.corpus import words > words. ... ()) > 236736 Any ideas why? See Question&Answers more detail:os...

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

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javascript - Why does JSON.stringify not serialize non-enumerable properties?

I'm serializing objects to JSON strings with JavaScript, I noticed only enumerable object properties get ... -enumerable properties myself? See Question&Answers more detail:os...

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javascript - Convert array of objects to array of arrays

var json = [{one: "text1", two: "text2", three: 3, four: 4}, {one: "text3", two: "text4", three: 5, ... it easily? If not a for loop might do. See Question&Answers more detail:os...

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vb.net - no value given for one or more required parameters

What's wrong in here, I always get some nasty errors even if the same code that I used earlier works. But ... Sub what might be wrong here? See Question&Answers more detail:os...

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java - Make splash screen with progress bar like Eclipse

My main class loads configuration from a file then shows a frame. I want to make a splash screen with a progress bar ... // show frame 2 } } } See Question&Answers more detail:os...

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ruby - How do I avoid trailing empty items being removed when splitting strings?

I am doing: "b::::c:::".split(':') Result: ["b", "", "", "", "c", "", ""] # expect ["b" ... is the problem here? how can i get what i expected. See Question&Answers more detail:os...

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

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Javascript native sort method code

Any idea how I can view the implementation of native javascript methods specifically the sort method. The reason ... from browser to browser? See Question&Answers more detail:os...

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

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c++ - What am I allowed to do with a static, constexpr, in-class initialized data member?

This is probably a bit of an unusual question, in that it asks for a fuller explanation of a short answer ... you can in-class initialize it? See Question&Answers more detail:os...

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

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spring - antMatchers that matches any beginning of path

I've got REST service that will be used for authentication. The authentication endpoint will look like /api/v.1/ ... how I can solve this? See Question&Answers more detail:os...

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c# - How to use default serialization in a custom System.Text.Json JsonConverter?

I am writing a custom System.Text.Json.JsonConverter to upgrade an old data model to a new version. I ... CanWrite property. Demo fiddle here. See Question&Answers more detail:os...

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

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Get sender email from gmail-api

I am using the gmail-api and having trouble getting the email of the sender. I am talking about the "full" ... sender? Thank you 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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css - Can flex items wrap in a container with dynamic height?

I have a flex-box problem. Can anyone point me in the right direction? It might even be that flex-box cannot solve ... <span class="capitalize">Tallahassee</span><span> (131)</s...

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

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fortran - Providing an argument that has not the TARGET attribute to a procedure with a dummy argument that has the TARGET attribute

In Fortran language, providing an argument that has not the TARGET attribute to a procedure with a dummy ... tab end subroutine end program See Question&Answers more detail:os...

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

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c++ - Alpha rendering difference between OpenGL and WebGL

I'm rendering the same scene using the same exact C++ code, once to native OpenGL on windows and once ... can possibly cause this to happen? See Question&Answers more detail:os...

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Add Number of days column to Date Column in same dataframe for Spark Scala App

I have a dataframe df of columns ("id", "current_date", "days") and I am trying to add the the "days" to " ... 1.6.0 scala version: 2.10.6 See Question&Answers more detail:os...

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javascript - removeEventListener is not working

I don't know what I am doing wrong but here is an example of what I am doing and it doesn't seem to ... doesn't remove the 'mousemove' listener See Question&Answers more detail:os...

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

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regex - Regular Expression - How to find a match within a match?

I've been trying to do the following using VBs Regular Expression object but could not find an easy way to do ... ? Thank you! Thanks, Allen See Question&Answers more detail:os...

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

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