r-faq

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Grouping functions (tapply, by, aggregate) and the *apply family
user_2315880
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1130
10
429746
tapply sapply lapply r-faq r
Subset / filter rows in a data frame based on a condition in a column
user_2774340
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85
3
308447
subset r-faq dataframe r
Formatting Decimal places in R
user_1703520
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339
15
774594
r-faq r rounding formatting
How to convert a factor to integer\numeric without loss of information?
user_4098280
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683
11
1095070
r-faq r casting
Combine two data frames by rows (rbind) when they have different sets of columns
user_1554060
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303
14
428961
r-faq dataframe r
How to subtract years?
user_3995730
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60
8
60467
date-arithmetic r-faq r date
How to split a data frame?
user_3859090
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82
8
264420
r-faq dataframe r split
Order discrete x scale by frequency/value
user_3739080
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150
7
269402
ggplot2 r-faq r
Understanding the order() function
user_2791530
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94
7
159015
r-faq r sorting
Controlling number of decimal digits in print output in R
user_1923770
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139
4
286781
output-formatting digits r-faq precision r
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