[Solved] how to encode only categorical data in a dataframe

[ad_1] # Using standard scikit-learn label encoder. from sklearn.preprocessing import LabelEncoder le = LabelEncoder() # Encode all string columns. Assuming all categoricals are of type str. for c in df.select_dtypes([‘object’]): print “Encoding column ” + c df[c] = le.fit_transform(df[c]) 3 [ad_2] solved how to encode only categorical data in a dataframe

[Solved] Java: two threads executing until the boolean flag is false: the second thread’s first run stops the first thread

[ad_1] this just isn’t how you’re supposed to work with threads. You have 2 major problems here: java memory model. Imagine that one thread writes to some variable, and a fraction of a second later, another thread reads it. If that would be guaranteed to work the way you want it to, that means that … Read more

[Solved] What is more Efficient? Implementation in overloaded function or by checking object type in Base class function

[ad_1] For many reasons – code maintainability, extensibility, concision, reliability, minimising the amount of code that needs to be recompiled/redistributed to pick up changes in some library code it uses – you should almost always use virtual functions rather that writing your own switching mechanisms. If you need to ask about it on stackoverflow, I’d … Read more

[Solved] I have a number and I need to format it to billion or million

[ad_1] The toFixed() method converts a number into a string, keeping a specified number of decimals. Here is the JsFiddle link https://jsfiddle.net/zco2d5x1/ function fnum(x) { if (x < 1000000000) { alert((x / 1000000).toFixed(2) + “M”); } else if (x < 1000000000000) { alert((x / 1000000000).toFixed(2) + “B”); } else alert(“More”); } fnum(136866516683); 0 [ad_2] solved … Read more

[Solved] To write a query SPARQL in Java code using strstarts filter

[ad_1] I have resolved my problem using this code: public QueryExecution query(){ String stringa = “http://dbpedia.org/resource/Fred_Guy”; ParameterizedSparqlString qs = new ParameterizedSparqlString( “” + “prefix dbpediaont: <http://dbpedia.org/ontology/>\n” + “prefix dbpedia: <http://dbpedia.org/resource/>\n” + “prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n” + “\n” + “select ?resource where {\n” + “?mat rdf:type ?resource\n” + “filter strstarts(str(?resource), dbpediaont:)\n” + “}” ); Resource risorsa = … Read more

[Solved] I need help getting the grand total of a simple php cart using sessions [closed]

[ad_1] Just replace this chunk of code, with my code below….should work… <?php //Print all the items in the shopping cart $totalAll = 0; foreach ($_SESSION[‘SHOPPING_CART’] as $itemNumber => $item) { $totalAll = $totalAll + ($item[‘qty’]*$item[‘price’]); ?> <tr id=”item<?php echo $itemNumber; ?>”> <td height=”41″><a href=”https://stackoverflow.com/questions/17129590/?remove=<?php echo $itemNumber; ?>”>Remove Item</a></td> <td><?php echo $item[‘name’]; ?></td> <td>£<?php echo … Read more

[Solved] repository element

[ad_1] I believe what you are trying to do is deploy the webapp to application server. And to do this you are using the mvn … deploy command. The problem is mvn deploy is meant for deploying the output of your project (artifact) to maven repository. For example to share your classes with other co-workers. … Read more

[Solved] C# How to get the start date of the current 12 month cycle given a start date and an end date for a period [closed]

[ad_1] You can get the date and month values for start date and the year value for end date and use it to set current start date: DateTime startDate = (Convert.ToDateTime(“02/02/2016”)); var dy = startDate.Day; var mn = startDate.Month; DateTime endDate = (Convert.ToDateTime(“18/04/2018”)); var yy = endDate.Year; var currentStartDate = new DateTime(yy, mn, dy); 3 … Read more