All Questions

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Are there any R functions similar to Excel's PROCV?

In my case I have two data.frames: > head(Trecho) Xt Yt Zt 1 -75.56468 1.642710 0 2 -74.56469 1.639634 0 3 -73.56469 1.636557 0 4 -72.56470 1.633480 0 5 -71.56470 1.630403 0 6 -70.56471 1.627326 0 > head(TrechoS...
asked on 18.05.2017 / 14:46
3
answers

How to embed a library inside the other?

I've created a library for developing games in C ++. Except that my library needs another one to make the images display on the screen, the SDL2. So every time someone wants to use my library, the person would have to link to mine and SDL2. Ex:...
asked on 29.12.2017 / 17:40
1
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How to connect a bit to a number?

There are situations where we use numbers to load flags , meaning each bit, or set of bits, means something. Or we need to manipulate some data according to their bits, maybe it has to do with colors or something that bits individually end up h...
asked on 05.01.2017 / 11:54
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Daily notifications at a specific time set by the user

I've created a method to send a notification to the user with the name sendNotification() using NotificationCompat.Builder and NotificationManager . I need this notification to be launched every day at 07:30 AM , and th...
asked on 10.03.2017 / 18:16
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Machine Learning Chart

I'm having a problem generating a graph using Python - Machine Learning - Naive Bayes model - I would plot an F1 for the different values of K, below we have the classifier that gives me the following outputs:    Mean Accuracy: 0.896551724138...
asked on 01.09.2017 / 02:26
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How to make the arrow turn several times until it stops by itself after clicking the button?

In the question " How do I rotate an arrow within a circle using Java2D? , I was able to learn how to do the arrow rotates within the circle. But I need to make the arrow spin like a casino roulette, until I stop by myself. I thought about us...
asked on 11.10.2017 / 03:28
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How to define the order in which the components will receive focus through the TAB?

To organize the focus order of the components up to version 1.4 of java, we used the setNextFocusableComponent() ". However, it was discontinued as of the cited version. I would like to know how I can do this in the latest versions so...
asked on 11.09.2017 / 14:00
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How to instruct the browser to keep my Javascript and CSS cached through web.config

I analyzed my new site in Google PageSpeed Insights , I made some corrections, and now I need to cache some files (CSS and JS) in the browser. I searched for some articles / questions in Stack Overflow but could not figure out how to cache s...
asked on 05.07.2017 / 15:41
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abntex2 compile error

I'm running abntex2 to compose a final grade paper. I follow the canonical template distributed by abntex2 here with some modifications to the production of my work. The main modification is the separation of the template into several sm...
asked on 19.12.2013 / 20:53
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What are web workers and how to use them

Through searches I understand that Web Workers allow the concurrency of processes in JavaScript. It would be like firing a thread JavaScript that updates the View . Can you consider the adaptation of the MVC pattern to JavaScript? I woul...
asked on 14.01.2015 / 20:36