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New posts in data-manipulation

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

create new order for existing column values without reordering rows in dataframe - R

r data-manipulation recode rle

Use dplyr to compute "streaks" in column of data

r dataframe dplyr data-manipulation

Separate numbers and text in Excel

excel excel-formula data-manipulation

Replace values into previous row with a condition

r substring str-replace data-manipulation

generate choice switching matrix by group for many groups

r dplyr data-manipulation

(Pandas) drop duplicated groups created by GroupBy

python pandas pandas-groupby data-manipulation

R: Equivalent of "Fixed Width Delimitation"?

r dataframe pivot-table data-manipulation

Filter nan values out of rows in pandas

python pandas dataframe data-manipulation

spatial data / compute metrics on neighbors in R

r 2d data.table spatial data-manipulation

Mutating values for only a subset of the data under a condition, while keeping all data rows

r data-manipulation

Get the rolling sum of values of id from two different column?

python pandas dataframe pandas-groupby data-manipulation
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