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New posts in data-manipulation

Appending a row of sums for each level of a factor

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How to convert an array [] to a series of { key: value } paired objects?

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Retrieve all rows for specific text after grouping by application and user id

r dplyr data-manipulation

Between group difference in mean values for all numeric variables

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Is there a way to selectively apply this stringr function?

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Create column based on matched characters from another column and set all remaining unmatched characters to specified value

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jQuery jqGrid Show message when an edit row is complete

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pandas dataframe generate rows

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Merge two CSV and collate data

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How to change column values in dataframe in pandas?

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Protecting assembly from hacker

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Creating longitudinal datasets with reshape

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R: Sum variables based on some condition

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Group and count JSON using jq [duplicate]

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R: Is there a "Un-Character" Command in R?

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remove rows with >50% missing across certain columns in R

r data-manipulation

filter igraph object by vertex attribute value

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Select rows with at least one (any) negative value

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Append first row by group to original data

r append data-manipulation
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