Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Create a search function that has several input cells where the following information is entered: “Length”, “Diameter”, “Height”, “Whole_weight”, “Shucked_weight”, “Viscera_weight”, “Shell_weight” and “Rings. The function should have as an output the abalone’s row number in the Personal Data worksheet/tab. For example, in my own Personal Data, the output cell will return “2”, if I enter the following information in the input cells
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- Prepare the string data type columns as follows. a. Use web search and find the countries that belong to OECD and BRICS groups. Then, using the map() function, create a new column that indicates which of the two groups a country belongs. b. In the Continent column change the values of South America and North America into “America”. c. With a for loop generate relative frequency of all the string data type columns and examine whether there are infrequent values in each of the string variables that can be combined. d. Generate and save full-rank dummy variables for the string variablesarrow_forwardWhat's wrong with this cell?arrow_forwardPlease help me write the following function (see the photos for context of the problem): follow_trail(filename, treasure_map, start_row, start_col): Takes as inputs a string corresponding to a filename, a list of lists corresponding to a treasure map, and two non-negative integers representing a row and column index. Follows the trail in the given treasure map, starting at the given row and column index. Following the trail means to look at each character of the trail and perform the appropriate operation for that character: '>', '<', 'v', ' ∧': Continues following the trail by moving to the character to the right, left, below or above the current trail character, respectively. '.': Creates a new map file, with 'new_' prepended to the current map filename, and stores the same treasure map but with an X at the current position. Then, returns a tuple of three elements: the first being -1, and the latter two being the current row and column index. '*': Returns a tuple of three…arrow_forward
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