CODEWITHSUNDEEP
pythonsplit
yfro
yfro

Reputation: 47

How to combine split() with float()

My Script is reading data from another file. I require the data as float, not as string and I am searching for an elegant/pythonic way to combine float() with the last line instead of iterating over the entire list to change the data or changing it when I need it:

    data = []
    with open(os.path.join(path, file), "r") as f:            
        searchlines = f.readlines()
        for i, line in enumerate(searchlines):


            data.append(line.replace('[', ' ').replace(']', ' ').split())

So far this will save the data from the file in a list in a list as string.

How to combine the last line with float()?

Here is an example of the data before reading it:

    [[ 563.15   1673.97 3078.41]
     [ 563.15   1066.4  26617.7]
     [ 563.212  778.931 59356.1]

Upvotes: 0

Views: 979

Answers (2)

Rakesh
Rakesh

Reputation: 82765

Use map

Ex:

data.append(map(float, line.strip('[]').split()))

If python3

data.append(list(map(float, line.strip('[]').split())))

Upvotes: 3

David L
David L

Reputation: 441

Do you have numpy installed?

Because in that case you can do:

import numpy as np

with open(os.path.join(path, file), "r") as f:            
    data = np.array([line.strip('[]').split() for line in f],dtype=float)

it gives you a matrix in float format. Of course, this assumes that each line has the same number of values in it

Upvotes: 0

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