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Converting strings to floats in a DataFrame

...newer version of pandas (0.17 and up), you can use to_numeric function. It allows you to convert the whole dataframe or just individual columns. It also gives you an ability to select how to treat stuff that can't be converted to numeric values: import pandas as pd s = pd.Series(['1.0', '2', -3]) p...
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How to convert JSON string to array

...d keys). That's what the documentation says and that's what my PHP 5.2 installation returns. Are you using a function other than the official, built-in json_decode()? What does var_dump(json_decode($str, true)); return? – RickN Sep 22 '11 at 15:34 ...
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What's the best way to unit test protected & private methods in Ruby?

...e: Never mind the send! thing, it was revoked long ago, send/__send__ can call methods of all visibility - redmine.ruby-lang.org/repositories/revision/1?rev=13824 – dolzenko May 18 '10 at 5:41 ...
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How to initialize a vector in C++ [duplicate]

...p;arr[0]+N; } And then you can do this without having to repeat the size all over: int vv[] = { 12,43 }; std::vector<int> v(begin(vv), end(vv)); share | improve this answer | ...
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Could not load file or assembly 'Newtonsoft.Json' or one of its dependencies. Manifest definition do

... To solve this, I ensured all my projects used the same version by running the following command and checking the results: update-package Newtonsoft.Json -reinstall And, lastly I removed the following from my web.config: <dependentAssembly&gt...
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XMLHttpRequest Origin null is not allowed Access-Control-Allow-Origin for file:/// to file:/// (Serv

I'm trying to create a website that can be downloaded and run locally by launching its index file. 9 Answers ...
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Oracle query to fetch column names

...tion_schema.COLUMNS is USER_TAB_COLS for tables owned by the current user, ALL_TAB_COLS or DBA_TAB_COLS for tables owned by all users. Tablespace is not equivalent to a schema, neither do you have to provide the tablespace name. Providing the schema/username would be of use if you want to query AL...
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Why would a JavaScript variable start with a dollar sign? [duplicate]

...wish the jquery documentation used this notation as well... It is indeed really helpful. – pedromanoel Jan 28 '14 at 11:05 10 ...
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How to abandon a hg merge?

... Ah that is a good detail to know... actually I'm going to delete my comment claiming leaving off -r . is the same – Thymine Mar 1 '16 at 15:56 ...
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How does one generate a random number in Apple's Swift language?

... introduces new easy-to-use random functions for many data types. You can call the random() method on numeric types. let randomInt = Int.random(in: 0..<6) let randomDouble = Double.random(in: 2.71828...3.14159) let randomBool = Bool.random() ...