how-to-create-dataframes-in-julialang.md

How to create dataframes in JuliaLang?

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Dataframes in JuliaLang can be created using the DataFrame type from the DataFrames package.

using DataFrames

# Create a dataframe with 3 columns
df = DataFrame(A = [1,2,3], B = [4,5,6], C = [7,8,9])

# Print the dataframe
println(df)

Output example

3×3 DataFrame
│ Row │ A     │ B     │ C     │
│     │ Int64 │ Int64 │ Int64 │
├─────┼───────┼───────┼───────┤
│ 1   │ 1     │ 4     │ 7     │
│ 2   │ 2     │ 5     │ 8     │
│ 3   │ 3     │ 6     │ 9     │

Code explanation

1. using DataFrames: This imports the DataFrames package which contains the DataFrame type.

2. df = DataFrame(A = [1,2,3], B = [4,5,6], C = [7,8,9]): This creates a DataFrame object with 3 columns, A, B and C, and 3 rows of data.

3. println(df): This prints the DataFrame object to the console.

Helpful links

• DataFrames.jl Documentation

onelinerhub: How to create dataframes in JuliaLang?