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Recent questions tagged #datahandling
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1
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Ignoring missing values from your dataset is an easier and correct approach than updating the dataset with mean / median values
asked
Feb 10, 2020
in
Data Science
by
miceperry
#machine-learning
#datahandling
0
votes
1
answer
Import Data into R: Read CSV, Excel, SPSS, Stata, SAS Files
asked
Nov 13, 2019
in
R Language
by
MBarbieri
#datahandling
#r-programming
#r-question-answer
0
votes
0
answers
data handling
asked
Sep 3, 2019
in
Data Handling
by
Robin
#datahandling
DataHandling-questions-answers
+2
votes
1
answer
Technique used for evaluating findability of topics in a website
asked
Jun 13, 2019
in
User Research Methods
by
parvinder.singh
#user-research
#user-research-methods
#user-methods
#datahandling
+2
votes
1
answer
The systematic process of collecting and analyzing target customer data, the competition, and the target market environment to aid in making messaging, positioning and pricing decisions.
asked
Jun 13, 2019
in
User Research Methods
by
parvinder.singh
#user#research#methods
#datahandling
0
votes
1
answer
If x and y are two tbls, which of the following joins return all rows from x where there are not matching values in y, keeping just columns from x?
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
0
votes
1
answer
If x and y are two tbls, which of the following joins return all rows from x and y irrespective of matching values?
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
0
votes
1
answer
If x and y are two tbls, which of the following joins return all rows from y, and all columns from x and y?
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
0
votes
1
answer
If x and y are two tbls, which of the following joins return all rows from x where there are matching values in y, and all columns from x and y?
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
0
votes
1
answer
If x and y are two tbls, which of the following joins return all rows from x where there are matching values in y, keeping just columns from x?
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
0
votes
1
answer
In the iris dataset, how many flowers of species setosa havePetal.Length/Petal.Width ratio of less than 10
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
0
votes
1
answer
In the mtcars dataset, how many cars provide a mileage of less than 20 mpg?
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
0
votes
1
answer
What is the average mileage of a car in the mtcars dataset-
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
0
votes
1
answer
In the iris dataset, how many flowers havePetal.Length/Petal.Width ratio of less than 10
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
0
votes
1
answer
In the hflights dataset, how many flights were cancelled in the month of January 2011.
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
+1
vote
1
answer
Which of the following functions does not list the total number of observations in a dataset?
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
+1
vote
1
answer
Which of the following functions lists all columns in a dataset with few values from each column?
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
0
votes
1
answer
Which of the following functions can be used to find the number or rows and columns in a dataset?
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
0
votes
1
answer
tbl is an extension of:
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
0
votes
1
answer
The functions write.c() exports data into file
asked
Jun 7, 2019
in
Data Handling using R
by
tempuser
#datahandling
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