Write float arrays to a text file
You are encouraged to solve this task according to the task description, using any language you may know.
Write two equal-sized numerical arrays `x' and `y' to a two-column text file named `filename'.
The first column of the file contains values from an `x'-array with a given `xprecision', the second -- values from `y'-array with `yprecision'.
For example, considering:
x = {1, 2, 3, 1e11};
y = {1, 1.4142135623730951, 1.7320508075688772, 316227.76601683791}; /* sqrt(x) */
xprecision = 3;
yprecision = 5;
The file is:
1 1 2 1.4142 3 1.7321 1e+011 3.1623e+005
This task is intended as a subtask for Measure relative performance of sorting algorithms implementations.
Python
Interpreter: Python 2.6
import itertools
def writedat(filename, x, y, xprecision=3, yprecision=5):
with open(filename,'w') as f:
for a, b in itertools.izip(x, y):
f.write("%.*g\t%.*g\n" % (xprecision, a, yprecision, b))