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how do you filter pandas dataframes by multiple columns
...={}
for g in ['male', 'female']:
dic[g]=defaultdict(dict)
for y in [2013, 2014]:
dic[g][y]=df[(df[Gender]==g) & (df[Year]==y)] #store the DataFrames to a dict of dict
EDIT:
A demo for your getDF:
def getDF(dic, gender, year):
return dic[gender][year]
print genDF(dic, 'male', 2014)...
PHP function to make slug (URL string)
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leoap
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answered Jun 2 '10 at 7:57
MaerlynMaerlyn
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How to style the option of an html “select” element?
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edited Sep 30 '19 at 9:58
Jay
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How to add an extra source directory for maven to compile and include in the build jar?
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edited Sep 29 '15 at 18:36
brabenetz
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answered Mar 17 '12 at 19:25
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how do I strip white space when grabbing text with jQuery?
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333
Use the replace function in js:
var emailAdd = $(this).text().replace(/ /g,'');
That will r...
Python: Get the first character of the first string in a list?
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139
You almost had it right. The simplest way is
mylist[0][0] # get the first character from the...
Getting “bytes.Buffer does not implement io.Writer” error message
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3 Answers
3
Active
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What is the difference between named and positional parameters in Dart?
...tion:
getHttpUrl(String server, String path, [int port=80, int numRetries=3]) {
// ...
}
The optional parameters are positional in that you can't omit port if you want to specify numRetries.
getHttpUrl('example.com', '/index.html');
getHttpUrl('example.com', '/index.html', 8080);
getHttpUrl('e...
Android preferences onclick event
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230
Badr,
You need to set android:key for the item, Then in your code you can do...
Assuming you...
Can I set a breakpoint on 'memory access' in GDB?
...ss watchpoint.
So you have to expand them yourself:
gdb$ print $ebx
$13 = 0x135700
gdb$ rwatch *0x135700+0xec1a04f
Hardware read watchpoint 3: *0x135700 + 0xec1a04f
gdb$ c
Hardware read watchpoint 3: *0x135700 + 0xec1a04f
Value = 0xec34daf
0x9527d6e7 in objc_msgSend ()
Edit: Oh, and by the w...