Discover
Questions library
Collections library
Find online teacher
login
Discover
questions library
Find online teacher
login
Popular searches:
if-else
class-diagram
flowchart
Polymorphism
Home
Questions
Questions
Study lists
hamza shaheen Questions
5601 Questions
Write a R program to count the number of NA values in a data frame column
R programming
2022-05-18
Answers
30
Question
40
Followers
30
0
1
184
Write a R program to create a data frame using two given vectors and display the duplicated elements and unique rows of the said data frame
R programming
2022-05-18
Answers
30
Question
40
Followers
30
0
1
190
Write a R program to compare two data frames to find the row(s) in first data frame that are not present in second data frame
R programming
2022-05-18
Answers
30
Question
40
Followers
30
0
1
180
From the following tables, write a SQL query to find those players who scored number of goals in every match
Sql programming
2022-05-18
Answers
30
Question
40
Followers
30
0
1
197
From the following tables, write a SQL query to find the highest audience match
Sql programming
2022-05-18
Answers
30
Question
40
Followers
30
0
1
164
From the following tables, write a SQL query to find the player who scored the last goal for Portugal against Hungary. Return player name. soccer_country
Sql programming
2022-05-18
Answers
30
Question
40
Followers
30
0
1
186
From the following table, write a SQL query to find the second-highest stoppage time, which had been added, in the second half of play
Sql programming
2022-05-18
Answers
30
Question
40
Followers
30
0
1
158
Write a R program to create a data frame from four given vectors
R programming
2022-05-18
Answers
30
Question
40
Followers
30
0
1
199
Write a R program to get the structure of a given data frame
R programming
2022-05-18
Answers
30
Question
40
Followers
30
0
1
220
Write a R program to get the statistical summary and nature of the data of a given data frame
R programming
2022-05-18
Answers
30
Question
40
Followers
30
0
1
159
Write a R program to extract specific column from a data frame using column name
R programming
2022-05-18
Answers
30
Question
40
Followers
30
0
1
186
Write a R program to extract first two rows from a given data frame
R programming
2022-05-18
Answers
30
Question
40
Followers
30
0
1
178
Write a R program to extract 3rd and 5th rows with 1st and 3rd columns from a given data frame
R programming
2022-05-18
Answers
30
Question
40
Followers
30
0
1
224
Total:
5601
Previous
212
213
214
215
216
Next
Go
