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What's the meaning of interface{}?
...akes a copy of b rather than point at b for the same reason that var c uint64 = b makes a copy: if b later changes, s and c are supposed to have the original value, not the new one.
Values stored in interfaces might be arbitrarily large, but only one word is dedicated to holding the value in the i...
How to delete SQLite database from Android programmatically
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OK, I'm here. root@generic_x86:/data/data/com.dslomer64.servyhelperton/databases #. Other than removing, copying, and other things, isn't there a dir or list files or what the heck is in this directory/folder command?
– DSlomer64
Sep 12 '1...
In C++, is it still bad practice to return a vector from a function?
... Mgetz
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answered Jun 28 '10 at 17:55
Peter AlexanderPeter Alexander
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How to add a new row to an empty numpy array
... proper dimensionality.
>>> arr
array([], shape=(0, 3), dtype=int64)
Then be sure to append along axis 0:
arr = np.append(arr, np.array([[1,2,3]]), axis=0)
arr = np.append(arr, np.array([[4,5,6]]), axis=0)
But, @jonrsharpe is right. In fact, if you're going to be appending in a loop,...
Mongoimport of json file
...,
exec:"/share/home/01482/XXXXX/appker/ranger/NPB3.3.1/NPB3.3-MPI/bin/ft.D.64",
numNodes:"4",
sha1:"5a79879235aa31b6a46e73b43879428e2a175db5",
execEpoch:1336766742,
execModify:{"$date" : 1343779200000},
startTime:{"$date" : 1343779200000},
numCores:"64",
sizeT:{bss:"1881400168",text:"239574",data:"2...
How do I check which version of NumPy I'm using?
...David CDavid C
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What is “loose coupling?” Please provide examples
... answered Oct 22 '08 at 18:35
64BitBob64BitBob
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...
How do I make JavaScript beep?
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Solution
You can now use base64 files to produce sounds when imported as data URI. The solution is almost the same as the previous ones, except you do not need to import an external audio file.
function beep() {
var snd = new Audio("data:audio/wav;b...
Read a zipped file as a pandas DataFrame
...In [12]: crime2013
Out[12]:
<class 'pandas.core.frame.DataFrame'>
Int64Index: 24567 entries, 0 to 24566
Data columns (total 15 columns):
CCN 24567 non-null values
REPORTDATETIME 24567 non-null values
SHIFT 24567 non-null va...
Creating an empty Pandas DataFrame, then filling it?
...C': 'xyz'}, ignore_index=True)
df.dtypes
A object # yuck!
B float64
C object
dtype: object
Dealing with object columns is never a good thing, because pandas cannot vectorize operations on those columns. You will need to do this to fix it:
df.infer_objects().dtypes
A int64
B fl...