query: Is it possible to use spread on multiple columns in tidyr similar to dcast?
positive_passages.docid: 152949
positive_passages.text: Reshape multiple value columns to wide format
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negative_passages.text: percentage count by group using dplyr
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negative_passages.text: What's a good way to use R to make a scatterplot that separates the data by treatment?
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negative_passages.text: Split itemize into multiple columns
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negative_passages.text: R use ddply or aggregate
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negative_passages.text: Mathematica 10 Dataset doesn't format more than 4 columns?
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negative_passages.text: do.call(rbind, list) for uneven number of column
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negative_passages.text: Collapse / concatenate / aggregate a column to a single comma separated string within each group
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negative_passages.text: How to resample in R without repeating permutations?