大约有 4,000 项符合查询结果（耗时：0.0287秒） [XML]
Compress files while reading data from STDIN
...ad data as input and redirect the compressed to output file i.e.
cat test.csv | gzip > test.csv.gz
cat test.csv will send the data as stdout and using pipe-sign gzip will read that data as stdin. Make sure to redirect the gzip output to some file as compressed data will not be written to the t...
How to find where a method is defined at runtime?
...#crime>
If you're on Ruby 1.9+, you can use source_location
require 'csv'
p CSV.new('string').method(:flock)
# => #<Method: CSV#flock>
CSV.new('string').method(:flock).source_location
# => ["/path/to/ruby/1.9.2-p290/lib/ruby/1.9.1/forwardable.rb", 180]
Note that this won't work...
Principal component analysis in Python
..............................
if __name__ == "__main__":
import sys
csv = "iris4.csv" # wikipedia Iris_flower_data_set
# 5.1,3.5,1.4,0.2 # ,Iris-setosa ...
N = 1000
K = 20
fraction = .90
seed = 1
exec "\n".join( sys.argv[1:] ) # N= ...
np.random.seed(seed)
...
Warning message: In `…` : invalid factor level, NA generated
...
If you are reading directly from CSV file then do like this.
myDataFrame <- read.csv("path/to/file.csv", header = TRUE, stringsAsFactors = FALSE)
share
|
...
How can I get stock quotes using Google Finance API?
... very simple and useful.
For instance:
http://finance.yahoo.com/d/quotes.csv?s=GOOG+AAPL&f=snl1
Full details here:
http://www.gummy-stuff.org/Yahoo-data.htm
share
|
improve this answer
...
那些曾被追捧的90后创业男神女神，还好吗？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...据微博统计在2日时间里38万次转发，31万次被赞，7.9万条评论，在质量越来越低下，创意越来越匮乏的内容市场中，其作者陈安妮及其团队的确让我们刮目相看。
虽然这次的成功传播给安妮的团队带来实际收益并不高，6000万阅...
Split a string by a delimiter in python
...
You may be interested in the csv module, which is designed for comma-separated files but can be easily modified to use a custom delimiter.
import csv
csv.register_dialect( "myDialect", delimiter = "__", <other-options> )
lines = [ "MATCHES__STRING...
Why does csvwriter.writerow() put a comma after each character?
...the /names at the end and opens the page and prints the string to test1.csv :
3 Answers
...
Git 工具 - 子模块(submodule)：一个仓库包含另一个仓库 - 开源 & Github -...
...地配置文件，而 git submodule update 则从该项目中抓取所有数据并检出父项目中列出的合适的提交。
$ git submodule init
Submodule 'DbConnector' (https://github.com/chaconinc/DbConnector) registered for path 'DbConnector'
$ git submodule update
Cloning into 'D...
How can I split a comma delimited string into an array in PHP?
...
If that string comes from a csv file, I would use fgetcsv() (or str_getcsv() if you have PHP V5.3). That will allow you to parse quoted values correctly. If it is not a csv, explode() should be the best choice.
...