Extractors

Frame

struct Frame {
    int buffer_size, header_count; 
    int curr_row, row_count, row_limit; 
    char *filename, *file_buffer, *delimiter; 
    bool status;
    mat_t *matrix;    
    array_t *headers; 
    hash_table_t *frame;
};

typedef struct Frame frame_t; 

create_frame

Parameter Name	Type	Description
filepath	char*	path to csv file
buffer_size	int	max buffer size for each file line
row_limit	int	Amount of rows to load
delimiter	char*	Delimiter to separate

frame_t *create_frame(char *filepath, int buffer_size, int row_limit, char *delimiter);

dataframe

Parameter Name	Type	Description
filepath	char*	path to csv file
buffer_size	int	max buffer size for each file line
row_limit	int	Amount of rows to load
delimiter	char*	Delimiter to separate

frame_t *dataframe(char *filepath, int buffer_size, int row_limit, char *delimiter);  

init_row_value

Parameter Name	Type	Description
index	int	row index
value	char*	row value

row_value_t *init_row_value(int index, char *value); 

frame_to_matrix

Parameter Name	Type	Description
frame	frame_t	Instance of data frame
cols	array_t	Array with column values stored

mat_t *frame_to_matrix(frame_t *frame, array_t *cols); 

extract_headers

Parameter Name	Type	Description
frame	frame_t	Instance of data frame

void extract_headers(frame_t *frame);

init_rows

Parameter Name	Type	Description
frame	frame_t	Instance of data frame

void init_rows(frame_t *frame); 

print_cols

Parameter Name	Type	Description
frame	frame_t	Instance of data frame

void print_cols(frame_t *frame); 

print_rows

Parameter Name	Type	Description
frame	frame_t	Instance of data frame

void print_rows(frame_t *frame);

select_cols

Parameter Name	Type	Description
frame	frame_t	Instance of data frame
headers	void**	Headers to select from frame

void select_cols(frame_t *frame, void** headers); 

drop_cols

Parameter Name	Type	Description
frame	frame_t	Instance of data frame
cols	array_t	Columns to drop from frame

void drop_cols(frame_t *frame, array_t *cols); 

get_row_key

Parameter Name	Type	Description
frame	frame_t	Instance of data frame
key	char*	Row key to search for

char **get_row_key(frame_t *frame, char *key); 

add_frame_cols

Parameter Name	Type	Description
frame	frame_t	Instance of data frame
col1	char*	Column on dataframe
col2	char*	Column on dataframe
result_col	char*	Name of result column key

void add_frame_cols(frame_t *frame, char *col1, char *col2, char *result_col); 

subtract_frame_cols

Parameter Name	Type	Description
frame	frame_t	Instance of data frame
col1	char*	Column on dataframe
col2	char*	Column on dataframe
result_col	char*	Name of result column key

void subtract_frame_cols(frame_t *frame, char *col1, char *col2, char *result_col);