na

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Concatenating strings / rows using dplyr, group_by with mutate() or summarize() & str_c() or paste() & collapse, but maintain NA & all strings
user_36077120
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4
4
486
collapse dplyr na concatenation r
Concatenating strings / rows using dplyr, group_by & collapse or summarize, but maintain NA values
user_36077120
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3
1
299
collapse dplyr na concatenation r
Create all possible combinations of non-NA values for each group ID
user_159198830
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2
3
90
data.table na aggregate r
Calculate R and Rsquare with missing values in R
user_150301950
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1
1
46
missing-data na r
Get index and value of non-NA list element
user_103197070
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3
4
433
na subset r list
Selecting values from specific columns and skipping NA values in R
user_138847540
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4
3
131
na col r
What is an R function for filling NA with specific string values?
user_164901260
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1
3
63
na if-statement r
Completing the NAs of a Tibble in R
user_150722520
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1
4
53
na dataframe r
Changing NA only in subset in column of data frame based on conditions
user_166572800
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1
2
122
na subset grouping dataframe r
Removing cells from rows with NA
user_107540500
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1
4
86
na dataframe r
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