Message Boards Message Boards

0
|
4116 Views
|
2 Replies
|
2 Total Likes
View groups...
Share
Share this post:

[?] Read and map data from a file and create a graph?

huakai zeng
Posted 5 years ago

Hi I am new to Mathematica and i'm trying to read a .txt file that has 3 elements in each line separated by a whitespace. The .txt file can have as many lines as it wants. I am trying to set up a Directed Weighted Graph using the data in the .txt file while reading it

.txt file goes like this enter image description here

E.g. ( I want to construct a directed weighted graph like this while reading the file

enter cograph = Graph[{"Adam" -> "Sally", "Adam" -> "Bob", "Sally" -> "Bob"}, EdgeWeight-> {10, 5, 3}]de here
POSTED BY: huakai zeng
2 Replies
Sort By:
Rohit Namjoshi
Rohit Namjoshi
Posted 5 years ago

Hi Huakai,

data = Import["~/file.txt", "Table"]
edges = Thread[data[[All, 1]] -> data[[All, 2]]]
weights = data[[All, 3]]
g = Graph[edges, EdgeWeight -> weights, VertexLabels -> Automatic]

enter image description here
POSTED BY: Rohit Namjoshi
huakai zeng
huakai zeng
Posted 5 years ago

Thank you sir! This works great!
POSTED BY: huakai zeng
Reply to this discussion
Community posts can be styled and formatted using the Markdown syntax.
Tag limit exceeded
Note: Only the first five people you tag will receive an email notification; the other tagged names will appear as links to their profiles.
Reply Preview
Attachments
Remove
or Discard

Group Abstract Group Abstract