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New posts in data-manipulation

find last row where at least one column is not NA

r dataframe dplyr data.table data-manipulation

Remove duplicate elements in a row from a data frame in R

r dataframe duplicates data-manipulation

Convert wide format data to long format using SQL

sql postgresql data-manipulation

R - Add row index to a data frame but handle ties with minimum rank

r data-manipulation

Get the number of days since last event

r dplyr tidyr data-manipulation

How to split a 'CHR' column in R?

r dataframe split data-manipulation

How to get value of last non-NA column [duplicate]

r data-manipulation dplyr

Select 20 first rows per each entry

r data-manipulation

Solving Logic Puzzles Using R

r list sorting data-manipulation

Recoding all variables based on conditions

r dplyr data-manipulation data-cleaning

R: reading in a .csv turns all "" (blank spaces) to NA

r dataframe data-manipulation read.csv

Including columns using MAP and dictionary in a dataframe

python-3.x dictionary dataframe data-manipulation

Removing rows in dataset goes wrong

r row data-manipulation

Counting Frequencies of Sequences

r data-manipulation

Conditionally Concatenating Strings in R

r data-manipulation

awk command: if line doesn't starts with a character remove new line on before line

string unix awk data-manipulation

Making Combinations of Items

r random integer data-manipulation

Removing Fuzzy Duplicates in R

sql r duplicates data-manipulation fuzzy-logic

How to create a percentage column based on the values present in every third row?

r data-manipulation data-wrangling

How to create a column/index based on either of two conditions being met (to enable clustering of matched pairs within same dataframe)?

r indexing data-manipulation
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