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Convert the values in a column into row names in an existing data frame
...out exporting the data frame and then reimporting it with a row.names = call?
5 Answers
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How to convert list to string [duplicate]
...--------- TypeError Traceback (most recent call last) <ipython-input-16-f3b8e6cb2622> in <module>() ----> 1 print ''.join(map(str,L)) TypeError: 'str' object is not callable
– wgzhao
Jan 6 '13 at 11:44
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Run jar file in command prompt [duplicate]
... More times when you usea a '.jar', not work correctly and you need call with a interal sentence. Thanks :)
– user3402040
Jun 1 '17 at 8:16
1
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How to remove a key from HashMap while iterating over it? [duplicate]
I am having HashMap called testMap which contains String, String .
3 Answers
3
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Replacing Spaces with Underscores
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Call http://php.net/str_replace: $input = str_replace(' ', '_', $input);
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Check whether a value is a number in JavaScript or jQuery [duplicate]
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there is a function called isNaN it return true if it's (Not-a-number) , so u can check for a number this way
if(!isNaN(miscCharge))
{
//do some thing if it's a number
}else{
//do some thing if it's NOT a number
}
hope it works
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Delete terminal history in Linux [closed]
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If you use bash, then the terminal history is saved in a file called .bash_history. Delete it, and history will be gone.
However, for MySQL the better approach is not to enter the password in the command line. If you just specify the -p option, without a value, then you will be prompte...
Log.INFO vs. Log.DEBUG [closed]
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• Debug: fine-grained statements concerning program state, typically
used for debugging;
• Info: informational statements concerning program state,
representing program events or behavior tracking;
• Warn: statements that describe potentially harmful events or stat...
Iterating over a numpy array
...onverting to an array and looping. If you know you have an array, you can call the .coords attribute of the flat iterator.
a = X.flat
%timeit list([(a.coords, x) for x in a.flat])
1 loop, best of 3: 305 ms per loop
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Javascript. Assign array values to multiple variables? [duplicate]
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This is a new feature of JavaScript 1.7 called Destructuring assignment:
Destructuring assignment makes it possible to extract data from arrays or objects using a syntax that mirrors the construction of array and object literals.
The object and array liter...