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New posts in 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

R tidyr gather() two sets of columns based on lookup

r tidyr data-manipulation

Fill in missing values in a data.table using the growth rate by category

r data.table interpolation data-manipulation

Data management: flatten data with R

r dplyr tidyr data-manipulation

Multiplying and Adding Values across Rows

r data-manipulation

R Count unique values without specific symbol

r dataframe datetime count data-manipulation

reindex and padding R dataframe

r dataframe data-manipulation

How can I add array1 (2D) to array2 (3D)?

r arrays data-manipulation

R: Double Pivots Using DPLYR?

r data-manipulation

"Marking" Duplicates in R

r duplicates data-manipulation

How can one sort data in r based on a condition being met and time ordering?

r sorting data-manipulation

React manipulating NumberFormat format to work conditional

javascript reactjs number-formatting data-manipulation

R: Errors in Matrix Multiplication (non-conformable arguments)

r function matrix data-manipulation matrix-multiplication

Get edge list that includes alter's alters

r dplyr igraph data-manipulation edge-list

Fill new column based on conditions defined in a string

python pandas dataframe numpy data-manipulation

Trim a full string, not characters - Redshift

sql amazon-redshift trim data-manipulation

R: creating new variables in terms of other variables (error: NAs introduced by coercion )

r dataframe data-manipulation na paste

Extract values from data frame using data frame of indexes - R

r data-manipulation
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