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1. R Basic commands 4: Merge datasets R Basic commands 4: Merge datasets

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   ################# MERGE DATASETS

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   #Standard

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   merge(x, y, by = intersect(names(x), names(y)),

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         by.x = by, by.y = by, all = FALSE, all.x = all, all.y = all,

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         sort = TRUE, suffixes = c(".x",".y"),

2. R Basic commands 3: Manipulate datasets R Basic commands 3: Manipulate datasets

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   ############# MANIPULATE DATASETS

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   #Filter (easier using %>%)

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   NEW_DATASET <- OLD_DATASET %>%

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   	filter(VARIABLE == CONDITION)

3. R basic commands 1: Manage datasets R basic commands 1: Manage datasets

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   ###### MANAGE DATASETS

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   #Import files

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   filename <- read.csv('location/of/the/file.csv')

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4. R Basic commands 2: Describe datasets R Basic commands 2: Describe datasets

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   ############### DESCRIBE DATASETS

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   ## Min, max, etc, on different variables

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   summary(dataset)

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5. AccessibleNYC AccessibleNYC Public

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