How to find difference between values in two rows in an R dataframe using dplyr
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Beginner tips on using plyr to calculate year-over-year change across groups
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Aggregate data in R
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How to build a difference distribution table?
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How to ignore NA in ifelse statement
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How do I create group data in a category with more than and less than in R?
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R - How to get row & column subscripts of matched elements from a distance matrix
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How to divide each row of a matrix by elements of a vector in R
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How  to test  whether subgroup mean differs from overall group that includes the subgroup?
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Python: Finding differences between elements of a list
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Numbering rows within groups in a data frame
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Understanding the formula for the Confidence Interval of the difference between two sample proportions
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Setting Contrasts for ANOVA in R
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Confidence interval around difference of regression coefficients
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How can correlate against multiple columns using ddply?
156371
Calculating ratio between "rows" in ArcGIS field calculator
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Get difference between two lists
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In R, how do you differentiate a result is vector or matrix?