etl 0.1.0

A general-purpose extract-transform-load (ETL) tool
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[[source_files]]
name = "transform_test1.csv"
delimiter = ","
fields = [ { source_name = "a", field_type = "Text", add_to_frame = false },
           { source_name = "b", field_type = "Text", add_to_frame = false } ]

[[source_files]]
name = "transform_test2.csv"
delimiter = "\t"
fields = [ { source_name = "c", field_type = "Signed" },
           { source_name = "d", field_type = "Signed" },
           { source_name = "e", field_type = "Text" },
           { source_name = "f", field_type = "Float", add_to_frame = false } ]

[[transforms]]
method = { action = "Concatenate",  separator = "!!" }
source_fields = [ "a", "b" ]
target_name = "cat_ab"

[[transforms]]
source_fields = [ "e" ]
target_name = "map_e"

[transforms.method]
action = "Map"
default_value = "-1"
map = { "M" = "0", "F" = "1" }

[[transforms]]
source_fields = [ "map_e" ]
target_name = "map_convert_e"
method = { action = "Convert", target_type = "Signed" }

[[transforms]]
source_fields = [ "f" ]
target_name = "scaled_f_default"
method = { action = "Scale"}

[[transforms]]
source_fields = [ "f" ]
target_name = "scaled_f_custom"
method = { action = "Scale", min_value = -1.0, max_value = 1.0 }

[[transforms]]
source_fields = [ "f" ]
target_name = "norm_f_uncorr"
method = { action = "Normalize" }

[[transforms]]
source_fields = [ "f" ]
target_name = "norm_f_sample"
method = { action = "Normalize", sample_stdev_correction = 1.0 }

[[transforms]]
source_fields = [ "e" ]
target_name = "vec_onehot_e"
method = { action = "VectorizeOneHot" }

[[transforms]]
source_fields = [ "e" ]
target_name = "vec_onehot_e_n11"
method = { action = "VectorizeOneHot", binary_scaling = "NegOneOne" }

[[transforms]]
source_fields = [ "e" ]
target_name = "vec_hash_e"
method = { action = "VectorizeHash", hash_size = 4 }