From the wine data frame, select the columns country and price . Complete the code to return the output library(dplyr) write code here %>% write code here ( write code here ) Expected Output # A tibble: 9 x 2 country price 1 argentina 19.0 2 portugal 19.0 3 germany 17.0 4 germany 5 italy NA 18.0 6 italy 7 italy 19.4 13.6 8 france 40.0 9 argentina 14.9

From the wine data frame, select the columns country and price . Complete the code to return the output library(dplyr) write code here %>% write code here ( write code here ) Expected Output # A tibble: 9 x 2 country price 1 argentina 19.0 2 portugal 19.0 3 germany 17.0 4 germany 5 italy NA 18.0 6 italy 7 italy 19.4 13.6 8 france 40.0 9 argentina 14.9

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Create lookup functions to complete the summary section. In cell I6, create a formula using the VLOOKUP function to display the number of hours worked in the selected week. Look up the week number in cell I5 in the range A17:G20, and return the value in the 2nd column. Use absolute references for cell I5 and the range A17:G20.
Suppose you have monthly data for ten years stored in the column ‘timeframe’. They are stored as characters in R. You want to change them to R dates called ‘Period’. Assuming the data structure is easily identified as a month/date, how should you do this?
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Use Python Code Your task is : Number of reported COVID-19 deaths by country. (Use pandas to read the csv table. Example : df = pd.read_csv('Covid19Deaths.csv') then do the code using the dataframe) COVID-19 Deaths table (csv): Province/State Country/Region Lat Long ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## 2/1/2020 2/2/2020 2/3/2020 2/4/2020 2/5/2020 2/6/2020 2/7/2020 2/8/2020 2/9/2020 ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## 3/1/2020 3/2/2020 3/3/2020 3/4/2020 3/5/2020 3/6/2020 3/7/2020 3/8/2020 3/9/2020 ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## 4/1/2020 4/2/2020 4/3/2020 4/4/2020 4/5/2020 4/6/2020 4/7/2020 Afghanistan 33 65 0 0 0 0 0 0 0 0…
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SQL Use the IN operator to list the item ID and description of each item in category FSH or BRD.