Recent questions tagged dataframe

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Delete row in HBase

Jul 24, 2018 in Database by Data_Nerd
• 2,390 points
1,607 views
0 votes
1 answer

How to sample random rows in dataframe?

Jul 3, 2018 in Data Analytics by anonymous
644 views
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1 answer
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Randomly subset of data with dplyr

Jun 19, 2018 in Data Analytics by Sahiti
• 6,370 points
687 views
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1 answer

Drop unused levels from a data frame in R

Jun 14, 2018 in Data Analytics by Sahiti
• 6,370 points
1,803 views
0 votes
1 answer

How to extract a dplyr tbl column as a vector?

Jun 6, 2018 in Data Analytics by DataKing99
• 8,240 points
6,238 views
0 votes
1 answer
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+4 votes
11 answers
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2 answers
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+1 vote
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+5 votes
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Counting the frequency of unique values - R

May 18, 2018 in Data Analytics by nirvana
• 3,130 points
95,306 views
0 votes
1 answer
+1 vote
2 answers
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Reordering levels of a factor variable

May 15, 2018 in Data Analytics by DataKing99
• 8,240 points
624 views
0 votes
1 answer
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1 answer
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cache tables in apache spark sql

May 4, 2018 in Apache Spark by shams
• 3,670 points
3,068 views
0 votes
1 answer
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1 answer
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Renaming columns of dataframes

May 3, 2018 in Python by kaalabilli
• 1,090 points
388 views
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1 answer
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1 answer

When not to use foreachPartition and mapPartition?

Apr 30, 2018 in Apache Spark by shams
• 3,670 points
6,739 views
0 votes
1 answer

data.frame vs matrix

Apr 27, 2018 in Data Analytics by nirvana
• 3,130 points
816 views
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1 answer
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2 answers
+5 votes
11 answers

Concatenate columns in apache spark dataframe

Apr 26, 2018 in Apache Spark by Shubham
• 13,490 points
71,543 views
0 votes
1 answer
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1 answer

How to save a DataFrame in R??

Apr 20, 2018 in Data Analytics by DataKing99
• 8,240 points
4,879 views
0 votes
1 answer
0 votes
1 answer

Changing Column position in spark dataframe

Apr 19, 2018 in Apache Spark by kurt_cobain
• 9,390 points
13,315 views
0 votes
1 answer

How to limit output of a dataframe in R?

Apr 18, 2018 in Data Analytics by CodingByHeart77
• 3,740 points
2,957 views
0 votes
1 answer
+1 vote
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How to convert dataframe columns from factors to characters?

Apr 13, 2018 in Data Analytics by Sahiti
• 6,370 points
19,271 views
0 votes
1 answer

How to create an empty dataframe?

Apr 13, 2018 in Data Analytics by DataKing99
• 8,240 points
1,202 views