大约有 3,516 项符合查询结果（耗时：0.0134秒） [XML]
Suppress Scientific Notation in Numpy When Creating Array From Nested List
...hon Force-suppress all exponential notation when printing numpy ndarrays, wrangle text justification, rounding and print options:
What follows is an explanation for what is going on, scroll to bottom for code demos.
Passing parameter suppress=True to function set_printoptions works only for number...
Python matplotlib multiple bars
...nts).
import numpy as np
import matplotlib.pyplot as plt
N = 3
ind = np.arange(N) # the x locations for the groups
width = 0.27 # the width of the bars
fig = plt.figure()
ax = fig.add_subplot(111)
yvals = [4, 9, 2]
rects1 = ax.bar(ind, yvals, width, color='r')
zvals = [1,2,3]
rects2 = ax....
Generate random numbers following a normal distribution in C/C++
...d standard deviation of a normal variable. An obvious drawback is that the range is limited to ±6 – unlike a true normal distribution.
The Box-Muller transform. This is listed above, and is relatively simple to implement. If you need very precise samples, however, be aware that the Box-Muller tra...
How can I get the diff between all the commits that occurred between two dates with Git?
...hen all of the last month's changes will appear in a @{1 hour ago}..@{now} range. If you are able to run the log command on the 'central' repostory that people push to, then it may do what you want.
share
|
...
AWS Error Message: A conflicting conditional operation is currently in progress against this resourc
...Error: 'ascii' codec can't decode byte 0xe2 in position 17: ordinal not in range(128). The solution was to remove the --region flag.
– MagentoAaron
Apr 10 '19 at 14:17
...
TypeError: sequence item 0: expected string, int found
...'ascii' codec can't encode character u'\xeb' in position 4: ordinal not in range(128)
The following line, however, will not throw an error:
print unicode(u'Libi\xeb') # prints Libië
So, replace:
values = ','.join([str(i) for i in value_list])
by
values = ','.join([unicode(i) for i in value...
decimal vs double! - Which one should I use and when? [duplicate]
...uld I use a decimal
type?
decimal for when you work with values in the range of 10^(+/-28) and where you have expectations about the behaviour based on base 10 representations - basically money.
double for when you need relative accuracy (i.e. losing precision in the trailing digits on large va...
Double vs. BigDecimal?
...l is part of the Java language and is useful for a variety of applications ranging from the financial to the scientific (that's where sort of am).
There's nothing wrong with using doubles for certain calculations. Suppose, however, you wanted to calculate Math.Pi * Math.Pi / 6, that is, the value o...
How do you get the index of the current iteration of a foreach loop?
...swers by David B and bcahill make clear. An index is an enumeration over a range, and there's no reason one cannot enumerate two things in parallel ... that's exactly what the indexing form of Enumerable.Select does.
– Jim Balter
Oct 26 '13 at 0:57
...
How to remove an element from a list by index
...ree ways in terms of efficiency:
Assume the following is predefined:
a = range(10)
index = 3
The del object[index] method:
By far the most efficient method. It works will all objects that define a __del__ method.
The disassembly is as follows:
Code:
def del_method():
global a
global ...