# Julia code goes here
Option 1: Using dropmissing()
The dropmissing() function in Julia is used to remove missing values from a given array or DataFrame. It returns a new array or DataFrame with the missing values removed.
Here is an example of how to use dropmissing() to remove missing values from an array:
data = [1, 2, missing, 4, missing, 6]
clean_data = dropmissing(data)
println(clean_data)
The output of this code will be:
[1, 2, 4, 6]
Option 1 is useful when you want to completely remove missing values from your data.
Option 2: Using skipmissing()
The skipmissing() function in Julia is used to skip missing values in a given array or DataFrame. It returns an iterator that skips missing values.
Here is an example of how to use skipmissing() to skip missing values in an array:
data = [1, 2, missing, 4, missing, 6]
clean_data = collect(skipmissing(data))
println(clean_data)
The output of this code will be:
[1, 2, 4, 6]
Option 2 is useful when you want to iterate over the data and skip missing values without removing them.
Option 3: Using dropmissing!() or skipmissing!()
The dropmissing!() and skipmissing!() functions in Julia are similar to dropmissing() and skipmissing(), but they modify the original array or DataFrame in place instead of returning a new one.
Here is an example of how to use dropmissing!() to remove missing values from an array:
data = [1, 2, missing, 4, missing, 6]
dropmissing!(data)
println(data)
The output of this code will be:
[1, 2, 4, 6]
Option 3 is useful when you want to modify the original data and save memory by not creating a new array or DataFrame.
Among the three options, the best one depends on your specific use case. If you want to keep the original data intact and create a new array or DataFrame without missing values, option 1 (dropmissing()) is the most suitable. If you want to iterate over the data and skip missing values without modifying the original data, option 2 (skipmissing()) is the way to go. If you want to modify the original data in place and save memory, option 3 (dropmissing!() or skipmissing!()) is the best choice.
