"""
Import / export a sample via a CSV file
=======================================
"""

# %%
# In this example we are going to import and export a data sample from/to a CSV file.

# %%
import openturns as ot


# %%
# Create a sample from a 2-d Gaussian distribution.
sample = ot.Normal(2).getSample(5)
sample.setDescription(["u1", "u2"])

# %%
# Write a CSV file.
# Warning: the default separator is ';'.
sample.exportToCSVFile("sample.csv", ",")

# %%
# Print the content of the written file.
with open("sample.csv", "r") as f:
    for line in f.readlines():
        print(line, end="")

# %%
# Read the previous CSV file.
sample = ot.Sample.ImportFromCSVFile("sample.csv", ",")
print(sample)

# %%
# ImportFromTextFile can also be used for the same purpose
# although it allows more permissive formats with whitespace separator, comments, etc.
sample = ot.Sample.ImportFromTextFile("sample.csv", ",")
print(sample)