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How to convert index of a pandas dataframe into a column?
...ke:
>>> df
val
tick tag obs
2016-02-26 C 2 0.0139
2016-02-27 A 2 0.5577
2016-02-28 C 6 0.0303
and you want to convert the 1st (tick) and 3rd (obs) levels in the index into columns, you would do:
>>> df.reset_index(level=['tick...
How to open in default browser in C#
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edited Jan 14 '15 at 14:21
jheriko
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answered Jan...
What is the difference between shallow copy, deepcopy and normal assignment operation?
... the
original.
Here's a little demonstration:
import copy
a = [1, 2, 3]
b = [4, 5, 6]
c = [a, b]
Using normal assignment operatings to copy:
d = c
print id(c) == id(d) # True - d is the same object as c
print id(c[0]) == id(d[0]) # True - d[0] is the same object as c[0]
Us...
Installing Ruby Gem in Windows
... |
edited Feb 8 '17 at 12:07
reducing activity
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...
Change text color based on brightness of the covered background area?
...lor
Here's the W3C algorithm (with JSFiddle demo too):
const rgb = [255, 0, 0];
// Randomly change to showcase updates
setInterval(setContrast, 1000);
function setContrast() {
// Randomly update colours
rgb[0] = Math.round(Math.random() * 255);
rgb[1] = Math.round(Math.random(...
What is the difference between atan and atan2 in C++?
What is the difference between atan and atan2 in C++?
11 Answers
11
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Python: Check if one dictionary is a subset of another larger dictionary
...
112
Convert to item pairs and check for containment.
all(item in superset.items() for item in subse...
Center a map in d3 given a geoJSON object
... = d3.geo.centroid(json)
var scale = 150;
var offset = [width/2, height/2];
var projection = d3.geo.mercator().scale(scale).center(center)
.translate(offset);
// create the path
var path = d3.geo.path().projection(projection);
// using the path determ...
Transposing a NumPy array
...
248
It's working exactly as it's supposed to. The transpose of a 1D array is still a 1D array! (I...
Upgrading PHP in XAMPP for Windows?
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128
Take a backup of your htdocs and data folder (subfolder of MySQL folder), reinstall upgraded ve...