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How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting

... """ plt.plot(x, y, 'ro',label="Original Data") """ brutal force to avoid errors """ x = np.array(x, dtype=float) #transform your data in a numpy array of floats y = np.array(y, dtype=float) #so the curve_fit can work """ create a function to fit with your data. a, b, c and d are the coeffici...
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Objective-C declared @property attributes (nonatomic, copy, strong, weak)

... In addition to the comment of @JohnBushnell there are many other errors and inaccuracies in this answer. It has also not aged well, so is somwhat historical. Go look elsewhere if you seek an answer to this question. – CRD Mar 1 '18 at 5:22 ...
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Window vs Page vs UserControl for WPF navigation?

... catch (Exception ex) { MessageBox.Show(ex.Message, "Error"); } } That's one way of doing it We can also use a Tab Control instead of Fram and Add pages to it using a Dictionary while adding new page check if the control already exists then only navigate otherwise...
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How to send a custom http status message in node / express?

...'User already exists.'); Handle at Client side Angular:- $http()..... .error(function(data, status) { console.error('Repos error', status, data);//"Repos error" 500 "User already exists." }); jQuery:- $.ajax({ type: "post", url: url, success: function (data, text) { }, e...
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try {} without catch {} possible in JavaScript?

I have a number of functions which either return something or throw an error. In a main function, I call each of these, and would like to return the value returned by each function, or go on to the second function if the first functions throws an error. ...
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mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to

...m trying to select data from a MySQL table, but I get one of the following error messages: 31 Answers ...
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Use ASP.NET MVC validation with jquery ajax?

...ata.ModelState; if (!modelState.IsValid) { var errorModel = from x in modelState.Keys where modelState[x].Errors.Count > 0 select new { key = x, ...
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Error handling in getJSON calls

How can you handle errors in a getJSON call? Im trying to reference a cross-domain script service using jsonp, how do you register an error method? ...
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How to do error logging in CodeIgniter (PHP)

I want error logging in PHP CodeIgniter. How do I enable error logging? 5 Answers 5 ...
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What are the best practices for JavaScript error handling?

I'm looking to start making my JavaScript a bit more error proof, and I'm finding plenty of documentation on using try , catch , finally , and throw , but I'm not finding a ton of advice from experts on when and where to throw errors. ...