大约有 1,500 项符合查询结果（耗时：0.0210秒） [XML]
python pandas remove duplicate columns
...probably with the duplicate column titles.
For a sample table file 'dummy.csv' I made up:
Time H1 N2 Time N2 Time Relative
3 13 13 3 13 0
1 15 15 1 15 14
14 19 19 14 19 14
19 5 5 19 5 1
using read_table gives unique columns and works properly:
In [151]: df2 =...
What does the “expand” option do in grunt-contrib-copy? The examples all use it but the docs say not
...r is not correct. It is at best simplified.
– David Pärsson
Mar 6 '15 at 14:03
3
-1. This is mis...
Alternative to google finance api [closed]
...hoo Finance API posted on
Google Code.
For beginners, you can generate a CSV with a simple API call:
http://finance.yahoo.com/d/quotes.csv?s=AAPL+GOOG+MSFT&f=sb2b3jk
(This will generate and save a CSV for AAPL, GOOG, and MSFT)
Note that you must append the format to the query string (f=..)...
What is the 'cls' variable used for in Python classes?
...ered Jan 6 '11 at 8:21
Juho VepsäläinenJuho Vepsäläinen
23.9k1111 gold badges7272 silver badges9898 bronze badges
...
UnicodeDecodeError: 'utf8' codec can't decode byte 0x9c
...g the engine from C to Python did the trick for me.
Engine is C:
pd.read_csv(gdp_path, sep='\t', engine='c')
'utf-8' codec can't decode byte 0x92 in position 18: invalid start byte
Engine is Python:
pd.read_csv(gdp_path, sep='\t', engine='python')
No errors for me.
...
Generating an Excel file in ASP.NET [closed]
...
CSV
Pros:
Simple
Cons:
It may not work in other locales or in different Excel configurations (i.e. List separator)
Can't apply formatting, formulas, etc
HTML
Pros:
Still pretty Simple
Supports simple format...
UTF-8: General? Bin? Unicode?
...icode_ci follows an old Unicode standard for comparisons. ij=ij, but ae != æ
utf8_unicode_520_ci follows an newer Unicode standard. ae = æ
See collation chart for details on what is equal to what in various utf8 collations.
utf8, as defined by MySQL is limited to the 1- to 3-byte utf8 codes. ...
图表组件 · App Inventor 2 中文网
...签，则使用默认值使用（该位置的轴刻度的 x 值）。
CSV字符串标签
指定要设置到图表 x 轴的标签，如果当前是一个带有 x 轴的图表。
标签被指定为逗号分隔（CSV格式）的值字符串，类似的用法参考标签列表。
启用...
In C#, how can I create a TextReader object from a string (without writing to disk)
I'm using A Fast CSV Reader to parse some pasted text into a webpage. The Fast CSV reader requires a TextReader object, and all I have is a string. What's the best way to convert a string into a TextReader object on the fly?
...
Arrays vs Vectors: Introductory Similarities and Differences [closed]
...swered Feb 26 '13 at 0:28
John KällénJohn Källén
6,6352525 silver badges5050 bronze badges
...