r-faq

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Calculate the mean by group
user_15178600
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91
8
194766
r-faq dataframe r
How to unload a package without restarting R
user_6366560
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638
12
488693
r-faq r package
Why can't I get a p-value smaller than 2.2e-16?
user_2511910
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40
6
32552
bonferroni r-faq precision r
Index values from a matrix using row, col indices
user_3270260
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27
4
22813
r-faq r indexing matrix
ggplot's qplot does not execute on sourcing
user_5874080
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67
1
22139
ggplot2 r-faq r
What does "S3 methods" mean in R?
jiggysoo_6420130
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137
6
51037
r-s4 r-s3 r-faq r oop
Vectorized IF statement in R?
user_252820
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48
6
75033
vectorization r-faq if-statement r
Access variable value where the name of variable is stored in a string
user_2918770
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69
4
67347
r-faq r variables
Plotting two variables as lines using ggplot2 on the same graph
user_1032250
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351
5
585366
time-series ggplot2 r-faq graph r
How to find common elements from multiple vectors?
user_4456650
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198
3
247300
r-faq vector r
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