Construction from a named tuple documentation #1580
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bkamins
reviewed
Nov 1, 2018
| @@ -124,37 +124,63 @@ It is also possible to fill a `DataFrame` row by row. Let us construct an empty | |||
| julia> df = DataFrame(A = Int[], B = String[]) | |||
| 0×2 DataFrame | |||
| ``` | |||
| Additionally, a `DataFrame` object can be constructed from an array of named tuples, where each tuple of the array corresponds to a row of the new data frame. The order and types of the elements in each of the named tuples specify the order of the columns and their types: | |||
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I guess it should be
vector of named tuples, where each named tuple in the vector"
(not native speaker though).
bkamins
reviewed
Jul 24, 2019
| @@ -124,37 +124,63 @@ It is also possible to fill a `DataFrame` row by row. Let us construct an empty | |||
| julia> df = DataFrame(A = Int[], B = String[]) | |||
| 0×2 DataFrame | |||
| ``` | |||
| Additionally, a `DataFrame` object can be constructed from an array of named tuples, where each tuple of the array corresponds to a row of the new data frame. The order and types of the elements in each of the named tuples specify the order of the columns and their types: | |||
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Suggested change
| Additionally, a `DataFrame` object can be constructed from an array of named tuples, where each tuple of the array corresponds to a row of the new data frame. The order and types of the elements in each of the named tuples specify the order of the columns and their types: | |
| Additionally, a `DataFrame` object can be constructed from any object that supports Tables.jl interface, for example a vector of `NamedTuple`s: |
bkamins
reviewed
Jul 24, 2019
| julia> r2 = (A = 2, B = "N") | ||
| (A = 2, B = "N") | ||
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| julia> df = DataFrame([r1, r2]) |
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Suggested change
| julia> df = DataFrame([r1, r2]) | |
| julia> df = DataFrame([(A = 1, B = "M"), | |
| (A = 2, B = "N")]) |
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I think we do not need to show creation of r1 and r2 explicitly. Can you also please remove the respective lines above?
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@ajozefiak I have left some comments. I think this PR is good to merge when they are incorporated. Thank you! |
Merged
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I have opened #2077 instead of this PR. |
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Addition of an example to the documentation of constructing a data frame from an array of named tuples. As suggested in #1573