大约有 30,000 项符合查询结果(耗时:0.0348秒) [XML]

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Evaluate expression given as a string

I'<em>mem> curious to know if R can use its eval() function to perfor<em>mem> calculations provided by e.g. a string. 7 Answers ...
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<em>Mem>ongoDB/<em>Mem>ongoose querying at a specific date?

... That should work if the dates you saved in the DB are without ti<em>mem>e (just year, <em>mem>onth, day). Chances are that the dates you saved were new Date(), which includes the ti<em>mem>e co<em>mem>ponents. To query those ti<em>mem>es you need to create a date range that includes all <em>mem>o<em>mem>ents in a day. db.posts.find( /...
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Why should a Java class i<em>mem>ple<em>mem>ent co<em>mem>parable?

Why is Java Co<em>mem>parable used? Why would so<em>mem>eone i<em>mem>ple<em>mem>ent Co<em>mem>parable in a class? What is a real life exa<em>mem>ple where you need to i<em>mem>ple<em>mem>ent co<em>mem>parable? ...
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Epoch vs Iteration when training neural networks

What is the difference between epoch and iteration when training a <em>mem>ulti-layer perceptron? 13 Answers ...
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Which CheckedListBox event triggers after a ite<em>mem> is checked?

I have a CheckedListBox where I want an event after an ite<em>mem> is checked so that I can use CheckedIte<em>mem>s with the new state. ...
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C# <em>mem>e<em>mem>ber variable initialization; best practice?

Is it better to initialize class <em>mem>e<em>mem>ber variables on declaration 7 Answers 7 ...
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source of historical stock data [closed]

I'<em>mem> trying to <em>mem>ake a stock <em>mem>arket si<em>mem>ulator (perhaps eventually growing into a predicting AI), but I'<em>mem> having trouble finding data to use. I'<em>mem> looking for a (hopefully free) source of historical stock <em>mem>arket data. ...
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Precise Financial Calculation in JavaScript. What Are the Gotchas?

In the interest of creating cross-platfor<em>mem> code, I'd like to develop a si<em>mem>ple financial application in JavaScript. The calculations required involve co<em>mem>pound interest and relatively long deci<em>mem>al nu<em>mem>bers. I'd like to know what <em>mem>istakes to avoid when using JavaScript to do this type of <em>mem>ath—if it is...
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Using GCC to produce readable asse<em>mem>bly?

I was wondering how to use GCC on <em>mem>y C source file to du<em>mem>p a <em>mem>ne<em>mem>onic version of the <em>mem>achine code so I could see what <em>mem>y code was being co<em>mem>piled into. You can do this with Java but I haven't been able to find a way with GCC. ...
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How to calculate cu<em>mem>ulative nor<em>mem>al distribution?

I a<em>mem> looking for a function in Nu<em>mem>py or Scipy (or any rigorous Python library) that will give <em>mem>e the cu<em>mem>ulative nor<em>mem>al distribution function in Python. ...