AlenkaF commented on code in PR #37656:
URL: https://github.com/apache/arrow/pull/37656#discussion_r1323120355
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python/pyarrow/array.pxi:
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@@ -2363,6 +2363,78 @@ cdef class MapArray(ListArray):
Returns
-------
map_array : MapArray
+
+ Examples
+ --------
+ First, let's understand the structure of our dataset when viewed in a
rectangular data model.
+ The total of 5 respondents answered the question "How much did you
like the movie x?".
+ The value -1 in the integer array means that the value is missing. The
boolean array
+ represents the null bitmask corresponding to the missing values in the
integer array.
+
+ >>> movies_rectangular = np.ma.masked_array([
+ ... [10, -1, -1],
+ ... [8, 4, 5],
+ ... [-1, 10, 3],
+ ... [-1, -1, -1],
+ ... [-1, -1, -1]
+ ... ],
+ ... [
+ ... [False, True, True],
+ ... [False, False, False],
+ ... [True, False, False],
+ ... [True, True, True],
+ ... [True, True, True],
+ ... ])
+
+ To represent the same data with the MapArray and from_arrays, the data
is
+ formed like this:
+
+ >>> offsets = [
+ >>> 0, # -- row 1 start
+ >>> 1, # -- row 2 start
+ >>> 4, # -- row 3 start
+ >>> 6, # -- row 4 start
+ >>> 6, # -- row 5 start
+ >>> 6, # -- row 5 end
+ >>> ]
Review Comment:
Probably `>>>` will also have to be replaced here with `...` as above.
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