从CSV文件中提取列以在NetworkX中用作节点列表 [英] Extract column from CSV file to use as nodelist in NetworkX
问题描述
我有一个包含2列的CSV文件:用户和位置。我想创建两个列表:一个只有用户,另一个只有位置,因此我可以使用networkx中的draw_network_nodes(nodelist = ...)函数将用户和位置分别绘制为具有不同形状和颜色的节点(所有用户将是蓝色的框,所有的位置将是红色的圆圈)。
另外,我的CSV文件中有一个标题,所以我不希望标题名称成为任一列表的一部分。
import csv
def reader(文件名):
for(lineno,line)in enumerate(open(filename)):
if lineno> 0:#skip header
yield line
filename =locations.csv
(users,locations)= zip(*(row for csv.reader(reader(文件名))))
printusers =,users
printlocations =,locations
给出:
locations =('seattle','los angeles','new york','伦敦')
users =('john','alan','trish','jack')
来自:
用户,位置
john,西雅图
alan,los angeles
trish,new york
jack,伦敦
I have a CSV file with 2 columns: user and locations. I want to create two lists: one with only users and the other with only locations so that I can use the draw_network_nodes(nodelist=...) function in networkx to draw users and locations separately as nodes with different shapes and colors (all users will be blue boxes and all locations will be red circles).
Also, there is a header in my CSV file, so I do not want the header names to be part of either lists.
Building on top of Hai Vu's answer:
import csv
def reader(filename):
for (lineno, line) in enumerate(open(filename)):
if lineno > 0: # skip header
yield line
filename = "locations.csv"
(users, locations) = zip(*( row for row in csv.reader(reader(filename))))
print "users =", users
print "locations =", locations
Gives:
locations = ('seattle', 'los angeles', 'new york', 'london')
users = ('john', 'alan', 'trish', 'jack')
From:
user,location
john,seattle
alan,los angeles
trish,new york
jack,london
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