Recent questions tagged dataframe

+3 votes
1 answer
0 votes
1 answer

Delete row in HBase

Jul 23, 2018 in Database by Data_Nerd
• 2,360 points
203 views
0 votes
1 answer

How to sample random rows in dataframe?

Jul 2, 2018 in Data Analytics by anonymous
50 views
0 votes
1 answer
0 votes
1 answer
0 votes
1 answer

Randomly subset of data with dplyr

Jun 18, 2018 in Data Analytics by darklord
• 6,170 points
43 views
0 votes
1 answer

Drop unused levels from a data frame in R

Jun 14, 2018 in Data Analytics by darklord
• 6,170 points
257 views
0 votes
1 answer

How to extract a dplyr tbl column as a vector?

Jun 6, 2018 in Data Analytics by DataKing99
• 8,130 points
181 views
0 votes
1 answer
0 votes
1 answer
0 votes
1 answer
0 votes
9 answers
0 votes
2 answers
0 votes
1 answer
0 votes
1 answer
0 votes
2 answers

Counting the frequency of unique values - R

May 18, 2018 in Data Analytics by nirvana
• 3,060 points
4,317 views
0 votes
1 answer
0 votes
2 answers
0 votes
1 answer

Reordering levels of a factor variable

May 15, 2018 in Data Analytics by DataKing99
• 8,130 points
28 views
0 votes
1 answer
0 votes
1 answer
0 votes
1 answer

cache tables in apache spark sql

May 4, 2018 in Apache Spark by shams
• 3,580 points
779 views
0 votes
1 answer
0 votes
1 answer
0 votes
1 answer
0 votes
1 answer

Renaming columns of dataframes

May 3, 2018 in Python by kaalabilli
• 1,090 points
27 views
0 votes
1 answer
0 votes
1 answer

When not to use foreachPartition and mapPartition?

Apr 30, 2018 in Apache Spark by shams
• 3,580 points
2,351 views
0 votes
1 answer

data.frame vs matrix

Apr 27, 2018 in Data Analytics by nirvana
• 3,060 points
36 views
0 votes
1 answer
+5 votes
11 answers

Concatenate columns in apache spark dataframe

Apr 26, 2018 in Apache Spark by Shubham
• 13,300 points
31,047 views
0 votes
1 answer
0 votes
1 answer

How to save a DataFrame in R??

Apr 20, 2018 in Data Analytics by DataKing99
• 8,130 points
498 views
0 votes
1 answer

Changing Column position in spark dataframe

Apr 19, 2018 in Apache Spark by kurt_cobain
• 9,260 points
4,617 views
0 votes
1 answer

How to limit output of a dataframe in R?

Apr 18, 2018 in Data Analytics by CodingByHeart77
• 3,690 points
61 views
0 votes
1 answer
+1 vote
1 answer
0 votes
1 answer
0 votes
1 answer

How to create an empty dataframe?

Apr 13, 2018 in Data Analytics by DataKing99
• 8,130 points
83 views
0 votes
2 answers
0 votes
1 answer