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authorRaymond Hettinger <rhettinger@users.noreply.github.com>2021-05-25 06:04:04 (GMT)
committerGitHub <noreply@github.com>2021-05-25 06:04:04 (GMT)
commit2f2e703244beb4078edebc3b029d13af183d1f95 (patch)
tree3ee029ef273264ff61eb0cfcada44cffcf6c3622 /Doc
parent59acfd4a09df1c141dac7845eed008af8970fce7 (diff)
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bpo-44151: Various grammar, word order, and markup fixes (GH-26344)
Diffstat (limited to 'Doc')
-rw-r--r--Doc/library/statistics.rst20
1 files changed, 10 insertions, 10 deletions
diff --git a/Doc/library/statistics.rst b/Doc/library/statistics.rst
index aad505c..bb03a2c 100644
--- a/Doc/library/statistics.rst
+++ b/Doc/library/statistics.rst
@@ -643,7 +643,7 @@ However, for reading convenience, most of the examples show sorted sequences.
.. versionadded:: 3.10
-.. function:: linear_regression(independent_variable, dependent_variable)
+.. function:: linear_regression(x, y, /)
Return the slope and intercept of `simple linear regression
<https://en.wikipedia.org/wiki/Simple_linear_regression>`_
@@ -651,30 +651,30 @@ However, for reading convenience, most of the examples show sorted sequences.
regression describes the relationship between an independent variable *x* and
a dependent variable *y* in terms of this linear function:
- *y = intercept + slope \* x + noise*
+ *y = slope \* x + intercept + noise*
where ``slope`` and ``intercept`` are the regression parameters that are
- estimated, and noise represents the
+ estimated, and ``noise`` represents the
variability of the data that was not explained by the linear regression
(it is equal to the difference between predicted and actual values
- of dependent variable).
+ of the dependent variable).
Both inputs must be of the same length (no less than two), and
- the independent variable *x* needs not to be constant;
- otherwise :exc:`StatisticsError` is raised.
+ the independent variable *x* cannot be constant;
+ otherwise a :exc:`StatisticsError` is raised.
For example, we can use the `release dates of the Monty
- Python films <https://en.wikipedia.org/wiki/Monty_Python#Films>`_, and used
- it to predict the cumulative number of Monty Python films
+ Python films <https://en.wikipedia.org/wiki/Monty_Python#Films>`_
+ to predict the cumulative number of Monty Python films
that would have been produced by 2019
- assuming that they kept the pace.
+ assuming that they had kept the pace.
.. doctest::
>>> year = [1971, 1975, 1979, 1982, 1983]
>>> films_total = [1, 2, 3, 4, 5]
>>> slope, intercept = linear_regression(year, films_total)
- >>> round(intercept + slope * 2019)
+ >>> round(slope * 2019 + intercept)
16
.. versionadded:: 3.10