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Download list of observation from CETESB QUALAR

Source: R/cetesb_retrieve_param.R
cetesb_retrieve_param.Rd

This function downloads the parameters in a vector. These parameters can be both pollutants or meteorological observations for one air quality station (AQS). It will pad out the date with missing data with NA. This function requires to have an account in CETESB QUALAR.

Usage

cetesb_retrieve_param(
  username,
  password,
  parameters,
  aqs_code,
  start_date,
  end_date,
  verbose = TRUE,
  to_csv = FALSE,
  csv_path = ""
)

Arguments

username

User name of CETESB QUALAR

password

User name's password of CETESB QUALAR

parameters

a character vector with the parameters abbreviations to download

aqs_code

Code of AQS

start_date

Date to start downloading in dd/mm/yyyy

end_date

Date to end downloading in dd/mm/yyyy

verbose

Print query summary

to_csv

Creates a csv file. FALSE by default

csv_path

Path to save the csv file

Value

data.frame with parameters described in params vector

Examples

if (FALSE) {
# Download ozone, nitrogen dioxide, and wind speed
# from Pinheiros AQS, from January first to 7th of 2020

my_user_name <- "John Doe"
my_pass_word <- "drowssap"
pin_code <- 99 # Check with cetesb_aqs
start_date <- "01/01/2020"
end_date <- "07/01/2020"
params <- c("o3","NOX", "VV")

pin_param <- cetesb_retrieve_param(my_user_name, my_pass_word,
                                   params, pin_code,
                                   start_date, end_date)
}