data-manipulation

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reshape R data frame long to wide
user_105094180
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103
reshape data-manipulation dataframe r
How to split a 'CHR' column in R?
user_158043590
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4
108
data-manipulation dataframe r split
Sorting a complex records in MySQL table
user_144242980
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2
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70
dml data-manipulation mysql sql
Combine long-format data frames with different length and convert to wide format
user_79892040
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2
2
121
panel-data data-cleaning time-series data-manipulation r
Replace values with a sample not equal to 0
user_172721300
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2
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130
data-manipulation dataframe r random replace
Group by ID and Outcome and take the earliest earliest Dates of specific outcomes and assign numbers (i.e outcome1, outcome2)
user_174915470
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3
1
70
data-manipulation r group-by
Create count table under specific condition
user_79892040
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2
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190
two-way-binding crosstab data-manipulation data-structures r
How can I use value_counts() only for certain values?
user_174813180
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4
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199
pandas data-manipulation python
Extracting tensor data with index in pytorch
user_98904730
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2
2
325
tensor pytorch data-manipulation
Replicate rows of data frame with inverse of previous row
user_128556730
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1
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34
dplyr tidyverse data-manipulation r
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