EnvStats (version 2.4.0)

Ozone.NE.df: Ozone Concentrations in the Northeast U.S.

Description

Ozone concentrations in 41 U.S. cities based on daily maxima collected between June and August 1974.

Usage

Ozone.NE.df

Format

A data frame with 41 observations on the following 5 variables.

Median

median of daily maxima ozone concentration (ppb).

Quartile

Upper quartile (i.e., 75th percentile) of daily maxima ozone concentration (ppb).

City

a factor indicating the city

Longitude

negative longitude of the city

Latitude

latitude of the city

Examples

# NOT RUN {
  summary(Ozone.NE.df)
  #     Median          Quartile               City      Longitude     
  # Min.   : 34.00   Min.   : 48.00   Asbury Park: 1   Min.   :-74.71  
  # 1st Qu.: 58.00   1st Qu.: 79.75   Babylon    : 1   1st Qu.:-73.74  
  # Median : 65.00   Median : 90.00   Bayonne    : 1   Median :-73.17  
  # Mean   : 68.15   Mean   : 95.10   Boston     : 1   Mean   :-72.94  
  # 3rd Qu.: 80.00   3rd Qu.:112.25   Bridgeport : 1   3rd Qu.:-72.08  
  # Max.   :100.00   Max.   :145.00   Cambridge  : 1   Max.   :-71.05  
  #                  NA's   :  1.00   (Other)    :35                   
  #    Latitude    
  # Min.   :40.22  
  # 1st Qu.:40.97  
  # Median :41.56  
  # Mean   :41.60  
  # 3rd Qu.:42.25  
  # Max.   :43.32 
# }

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