We have a dataframe that we cleaned the data and handle all missing data in that dataframe. The last operation we executed in the dataframe was the application of the dropna function. What do we have to do next?
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- If you had the option of having a million-element list, which implementation of the size and isEmpty functions would you use? (Consider the issue with the University of Michigan's alumni database.) If you had the option of making a million little lists, how would you choose? Think about the challenge of tracking dependents for a million income tax filings.)please help me..i did not find the suitable answer for it..but please dont copy it from internet..as it will not satisfied the number 3 activity. i tried to do the delete function so many time but it kept give me error.Thank you in advance.ANSWER THIS QUESTION Why should the **head in insert_atFront function has two asterisk (*)? Why should the searchNode return a pointer?
- The following code doesn't correctly return the index values of the minimum contiguous subsequence. Please modify it so that it does, with comments if possible. def minSumRec(a, left, right): if left == right: return [a[left], left, right] center = int((left + right) / 2) min_left_sum = minSumRec(a, left, center) min_right_sum = minSumRec(a, center + 1, right) min_left_border_sum, left_border_sum = 1e9, 0 for i in range(center, left - 1, -1): left_border_sum += a[i] if left_border_sum < min_left_border_sum: min_left_border_sum = left_border_sum min_right_border_sum, right_border_sum = 1e9, 0 for i in range(center + 1, right + 1): right_border_sum += a[i] if right_border_sum < min_right_border_sum: min_right_border_sum = right_border_sum min_border_sum = min_right_border_sum + min_left_border_sum minSum = min(min_left_sum[0], min_right_sum[0], min_border_sum) if minSum == min_left_sum: return min_left_sum if minSum == min_right_sum: return min_right_sum return…I need to know how to loop through a SQL query using PDO in PHP while only returning results under a specific condition. Below is an example of a code of my problem which checks to see if the generated number already exists in the database and only then commits the task. (The generated number in the example below already exists in the database but it is not returning anything.) <?php $mark = 100; $random = $mark.rand(100000, 999999); $result = $pdo->query('SELECT user_ID FROM user'); $row = $result->fetchAll(PDO::FETCH_ASSOC); foreach($row as $rows) { if($rows == 100000324) { echo $rows["user_ID"] . '<br>'; } } ?>How do I read in a specific row in a CSV file in Python without using pandas, list, or enumerate functions? For example, how do I ask to read row 10 in the file, and then ask for row 50, row 20 or row X?
- Which of the following statements about hash pointers in Blockchain is CORRECT? A. A hash pointer is only used to retrieve the information. B. A hash pointer is only used to verify that the information in the previous block hasn't been changed. C. In the blockchain, the head of the list is a regular hash‐pointer that points to the first data block created in the network. D. In the blockchain, if an attacker tampers a block without modifying other blocks, then we cannot detect the change.dataframe = pd.read_csv('https://raw.githubusercontent.com/Explore-AI/Public-Data/master/Data/regression_sprint/titanic_train_raw.csv') df = pd.read_csv('https://raw.githubusercontent.com/Explore-AI/Public-Data/master/Data/regression_sprint/titanic_test_raw.csv') Write a function that takes in as input a dataframe and a column name, and returns the mean for numerical columns and the mode for non-numerical columns. Function Specifications: The function should take two inputs: (df, column_name), where df is a pandas DataFrame, column_name is a str. If the column_name does not exist in df, raise a ValueError. Should return as output the mean if the specified column is numerical and return a list of the mode(s) otherwise. The mean should be rounded to 2 decimal places. If there is more than one mode for a given non-numerical column, the fuction should return a list of all modes. def calc_mean_mode(df, column_name): # your code here return calc_mean_mode(df,'Age') Expected Outputs:…Suppose df is a Pandas DataFrame that contains several columns, including a single column containing lengths, as measured in kilometres. This column has a label containing the string 'km', which uniquely identifies it. Write a function km_to_miles, which accepts such a DataFrame df, and adds a new column on the right-hand side which contains the same length data converted into miles. The label for this new column should be the same as the label of the original length data, but with the string 'km' replaced with 'miles'. For the purposes of this question, assume a kilometre is equivalent to 0.621371 miles. (on python)
- Hello, I am having an error and cannot figure out how to solve this question. Could someone please assist? Please be advised, I am using PostgreSQL as that is what was used in class. Thus, I must use PLPGSQL Code CREATE OR REPLACE FUNCTION Moreno_03_bankTriggerFunction()RETURNS TRIGGERLANGUAGE PLPGSQLAS$$CREATE TRIGGER Wise_12_bankTriggerAFTER DELETE ON accountFOR EACH ROW EXECUTE PROCEDURE Moreno_15_bankTriggerFunction();Could someone please help me complete the #TODO part? Please only help with implementing four (peek, reverse_top_two, remove_all, remove_all_but_one) functions in Part 1.HOW CAN I ADD THE FIRST NAME. LAST NAME AND EMAIL ADDRESS TO THE SEARCH LIST? OR CAN YOU USE SWITCH STATEMENT ? THE PROBLEM HERE IS THAT I WANT TO INCLUDE THE FIRST NAME LAST NAMR OR EMAIL ADDRESS TO SEARCH THE PERSON I WANT TO SEARCH void search_person(){ long int phone_1920213; printf("\n\nEnter Phone number of the person you want to search : "); scanf("%ld",&phone_1920213); FILE *fp; fp = fopen("phonebook_1920213", "rb"); if (fp == NULL) { printf("No results! The number you have searched is not of on the list. Plase try again !\n"); //print to continue using the program //press any key to continue printf("\nKINDLY PRESS ANY KEY TO CONTINUE USING THE PROGRAM!\n"); return; } else { int flag = 0; phonebook_1920213 p; while (fread(&p, sizeof(p), 1, fp) == 1) { if(p.contactnum_1920213 == phone_1920213) { printf("FIRST NAME\t\t\t\t SURNAME\t\t…