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Replace values in list using Python [duplicate]
...lace if you want, but it doesn't actually save time:
items = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
for index, item in enumerate(items):
if not (item % 2):
items[index] = None
Here are (Python 3.6.3) timings demonstrating the non-timesave:
In [1]: %%timeit
...: items = [0, 1, 2, 3, 4,...
Matplotlib scatter plot with different text at each data point
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489
I'm not aware of any plotting method which takes arrays or lists but you could use annotate() ...
How to get the nth element of a python list or a default if not available
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edited Jun 20 '18 at 19:48
John Kugelman
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Combine two data frames by rows (rbind) when they have different sets of columns
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234
rbind.fill from the package plyr might be what you are looking for.
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How to get the position of a character in Python?
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L S
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answered Feb 19 '10 at 6:35
Eli BenderskyEli Bendersky
218k...
configure: error: C compiler cannot create executables
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You have an old set of developer tools. gcc is reporting its version as 4.0.1. This may be left over from migrating from an older version of the OS. If you've installed Xcode 4.3.x, you need to launch it, go into its preferences, select the Downloads tab, and click "Install" next to the Command L...
海量数据相似度计算之simhash短文本查找 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...前的量级和未来的增长，2天大概在2000w — 5000w 中间。
4、短文本和长文本都要去重，经过测试长文本使用simhash效果很好，短文本使用simhash 准备度不高。
目前我们估算一下存储空间的大小，就以JAVA 来说，存储一个simhash 需...
count the frequency that a value occurs in a dataframe column
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446
Use groupby and count:
In [37]:
df = pd.DataFrame({'a':list('abssbab')})
df.groupby('a').coun...
Get Substring between two characters using javascript
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453
You can try this
var mySubString = str.substring(
str.lastIndexOf(":") + 1,
str.last...