Commit 27ec5326 authored by Laura A DeCicco's avatar Laura A DeCicco
Browse files

Merge pull request #111 from ldecicco-USGS/master

Help file updates.
parents 3f2283b5 83dcb78d
Package: dataRetrieval
Type: Package
Title: Retrieval Functions for USGS and EPA Hydrologic and Water Quality Data
Version: 2.1.4
Date: 2015-03-09
Version: 2.1.5
Date: 2015-04-01
Authors@R: c( person("Robert", "Hirsch", role = c("aut"),
email = "rhirsch@usgs.gov"),
person("Laura", "DeCicco", role = c("aut","cre"),
......
......@@ -3,6 +3,7 @@
export(checkWQPdates)
export(constructNWISURL)
export(constructWQPURL)
export(countyCd)
export(getWebServiceData)
export(importRDB1)
export(importWQP)
......@@ -23,6 +24,7 @@ export(readNWISuv)
export(readWQPdata)
export(readWQPqw)
export(renameNWISColumns)
export(stateCd)
export(whatNWISdata)
export(whatNWISsites)
export(whatWQPsites)
......
......@@ -408,9 +408,10 @@ importWaterML1 <- function(obs_url,asDateTime=FALSE, tz=""){
meltedmergedDF <- melt(mergedDF,id.vars=sortingColumns)
meltedmergedDF <- meltedmergedDF[!is.na(meltedmergedDF$value),]
rownames(meltedmergedDF) <- NULL
meltedmergedDF <- meltedmergedDF[!duplicated(meltedmergedDF),]
castFormula <- as.formula(paste(paste(sortingColumns, collapse="+"),"variable",sep="~"))
mergedDF2 <- dcast(meltedmergedDF, castFormula, drop=FALSE)
mergedDF2 <- dcast(meltedmergedDF, castFormula, drop=FALSE, value.var = "value")
dataColumns2 <- !(names(mergedDF2) %in% sortingColumns)
if(sum(dataColumns2) == 1){
mergedDF <- mergedDF2[!is.na(mergedDF2[,dataColumns2]),]
......
......@@ -2,6 +2,7 @@
#'
#' Returns data from the NWIS web service.
#' Arguments to the function should be based on \url{http://waterservices.usgs.gov} service calls.
#' See examples below for ideas of constructing queries.
#'
#' @param service string. Possible values are "iv" (for instantaneous), "dv" (for daily values), "gwlevels"
#' (for groundwater levels), "site" (for site service), and "qw" (water-quality). Note: "qw" calls go to:
......@@ -13,9 +14,12 @@
#' Name \tab Type \tab Description \cr
#' agency \tab character \tab The NWIS code for the agency reporting the data\cr
#' site \tab character \tab The USGS site number \cr
#' datetime \tab POSIXct \tab The date and time of the value converted to UTC (for unit value data), \cr
#' \tab character \tab or raw character string \cr
#' tz_cd \tab character \tab The time zone code for datetime \cr
#' dateTime \tab POSIXct \tab The date and time (if applicable) of the measurement,
#' converted to UTC for unit value data. R only allows one time zone attribute per column. For unit data
#' spanning a time zone change, converting the data to UTC solves this problem. For daily data,
#' the time zone attribute is the time zone of the first returned measurement.
#' \cr
#' tz_cd \tab character \tab The time zone code for dateTime column\cr
#' code \tab character \tab Any codes that qualify the corresponding value\cr
#' value \tab numeric \tab The numeric value for the parameter \cr
#' }
......@@ -41,11 +45,21 @@
#' \dontrun{
#' # Examples not run for time considerations
#' dataTemp <- readNWISdata(stateCd="OH",parameterCd="00010")
#' dataTempUnit <- readNWISdata(sites="03086500", service="iv", parameterCd="00010")
#' instFlow <- readNWISdata(sites="05114000", service="iv",
#' parameterCd="00060",
#' startDate="2014-05-01T00:00Z",endDate="2014-05-01T12:00Z")
#'
#' instFlowCDT <- readNWISdata(sites="05114000", service="iv",
#' parameterCd="00060",
#' startDate="2014-05-01T00:00",endDate="2014-05-01T12:00",
#' tz="America/Chicago")
#'
#' #Empty:
#' multiSite <- readNWISdata(sites=c("04025000","04072150"), service="iv", parameterCd="00010")
#' multiSite <- readNWISdata(sites=c("04025000","04072150"), service="iv",
#' parameterCd="00010")
#' #Not empty:
#' multiSite <- readNWISdata(sites=c("04025500","040263491"), service="iv", parameterCd="00060")
#' multiSite <- readNWISdata(sites=c("04025500","040263491"),
#' service="iv", parameterCd="00060")
#' bBoxEx <- readNWISdata(bBox=c(-83,36.5,-81,38.5), parameterCd="00010")
#'
#' startDate <- as.Date("2013-10-01")
......@@ -58,6 +72,8 @@
#' drain_area_va_min=50, qw_count_nu=50,qw_attributes="expanded",
#' qw_sample_wide="wide",list_of_search_criteria=c("lat_long_bounding_box",
#' "drain_area_va","obs_count_nu"),service="qw")
#' temp <- readNWISdata(bBox=c(-83,36.5,-81,38.5), parameterCd="00010", service="site",
#' seriesCatalogOutput=TRUE)
#' }
readNWISdata <- function(service="dv", ...){
......@@ -111,6 +127,21 @@ readNWISdata <- function(service="dv", ...){
}
if("tz" %in% names(values)){
tz <- values["tz"]
if(tz != ""){
rTZ <- c("America/New_York","America/Chicago",
"America/Denver","America/Los_Angeles",
"America/Anchorage","America/Honolulu",
"America/Jamaica","America/Managua",
"America/Phoenix","America/Metlakatla")
tz <- match.arg(tz, rTZ)
}
values <- values[!(names(values) %in% "tz")]
} else {
tz <- ""
}
if(service == "site"){
format <- "rdb"
}
......@@ -121,12 +152,45 @@ readNWISdata <- function(service="dv", ...){
urlCall <- paste0(baseURL,urlCall)
if(service == "site"){
retval <- importRDB1(urlCall, asDateTime = FALSE, qw = FALSE)
possibleError <- tryCatch({
retval <- importRDB1(urlCall, asDateTime = FALSE, qw = FALSE, tz = tz)
}, error = function(e) {
stop(e, "with url:", urlCall)
})
} else if(service != "qwdata") {
retval <- importWaterML1(urlCall, asDateTime = ("iv" == service))
possibleError <- tryCatch({
retval <- importWaterML1(urlCall, asDateTime = ("iv" == service), tz= tz)
}, error = function(e) {
stop(e, "with url:", urlCall)
})
if("dv" == service){
retval$dateTime <- as.POSIXct(retval$dateTime)
tzLib <- setNames(c("America/New_York","America/New_York",
"America/Chicago","America/Chicago",
"America/Denver","America/Denver",
"America/Los_Angeles","America/Los_Angeles",
"America/Anchorage","America/Anchorage",
"America/Honolulu","America/Honolulu"),
c("EST","EDT",
"CST","CDT",
"MST","MDT",
"PST","PDT",
"AKST","AKDT",
"HAST","HST"))
#TODO: Think about dates that cross a time zone boundary.
retval$dateTime <- as.POSIXct(retval$dateTime, tzLib[tz=retval$tz_cd[1]])
}
if("iv" == service){
if(tz == ""){
retval$tz_cd <- rep("UTC", nrow(retval))
} else {
retval$tz_cd <- rep(tz, nrow(retval))
}
}
} else {
possibleError <- tryCatch({
retval <- importRDB1(urlCall, asDateTime = TRUE, qw = TRUE)
......@@ -135,5 +199,7 @@ readNWISdata <- function(service="dv", ...){
})
}
return(retval)
}
......@@ -6,9 +6,9 @@
#' @param siteNumber character USGS site number. This is usually an 8 digit number. Multiple sites can be requested with a character vector.
#' @param parameterCd character of USGS parameter code(s). This is usually an 5 digit number.
#' @param startDate character starting date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
#' retrieval for the earliest possible record.
#' retrieval for the earliest possible record. Date arguments are always specified in local time.
#' @param endDate character ending date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
#' retrieval for the latest possible record.
#' retrieval for the latest possible record. Date arguments are always specified in local time.
#' @param statCd character USGS statistic code. This is usually 5 digits. Daily mean (00003) is the default.
#' @return A data frame with the following columns:
#' \tabular{lll}{
......
......@@ -30,9 +30,9 @@
#' @param parameterCd character that contains the code for a parameter
#' group, or a character vector of 5-digit parameter codes. See \bold{Details}.
#' @param startDate character starting date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
#' retrieval for the earliest possible record.
#' retrieval for the earliest possible record. Date arguments are always specified in local time.
#' @param endDate character ending date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
#' retrieval for the latest possible record.
#' retrieval for the latest possible record. Date arguments are always specified in local time.
#' @param expanded logical defaults to \code{TRUE}. If \code{TRUE}, retrieves additional information. Expanded data includes
#' remark_cd (remark code), result_va (result value), val_qual_tx (result value qualifier code), meth_cd (method code),
#' dqi_cd (data-quality indicator code), rpt_lev_va (reporting level), and rpt_lev_cd (reporting level type). If \code{FALSE},
......@@ -41,31 +41,34 @@
#' @param reshape logical, reshape the expanded data. If \code{TRUE}, then return a wide data frame with all water-quality in a single row for each sample.
#' If \code{FALSE} (default), then return a long data frame with each water-quality result in a single row. This
#' argument is only applicable to expanded data. Data requested using \code{expanded=FALSE} is always returned in the wide format.
#' @param tz character to set timezone attribute of datetime. Default is an empty quote, which converts the
#' datetimes to UTC (properly accounting for daylight savings times based on the data's provided tz_cd column).
#' @param tz character to set timezone attribute of output columns: startDateTime and endDateTime. Default is an empty quote, which converts the
#' datetimes to UTC (properly accounting for daylight savings times).
#' Possible values to provide are "America/New_York","America/Chicago", "America/Denver","America/Los_Angeles",
#' "America/Anchorage","America/Honolulu","America/Jamaica","America/Managua","America/Phoenix", and "America/Metlakatla"
#' @keywords data import USGS web service
#' @return A data frame with the following columns:
#' @return A data frame with at least the following columns:
#' \tabular{lll}{
#' Name \tab Type \tab Description \cr
#' agency_cd \tab character \tab The NWIS code for the agency reporting the data\cr
#' site_no \tab character \tab The USGS site number \cr
#' datetime \tab POSIXct \tab The date and time of the value converted to UTC (if asDateTime = TRUE), \cr
#' \tab character \tab or raw character string (if asDateTime = FALSE) \cr
#' tz_cd \tab character \tab The time zone code for datetime \cr
#' code \tab character \tab Any codes that qualify the corresponding value\cr
#' value \tab numeric \tab The numeric value for the parameter \cr
#' sample_dt \tab Date \tab The date the sample was collected \cr
#' sample_tm \tab character \tab The reported sample collection time \cr
#' startDateTime \tab POSIXct \tab Combining sample_dt and sample_tm, a date/time column is created, and converted into UTC
#' (unless the tz argument specifies a different time zone)\cr
#' endDateTime \tab POSIXct \tab If any sample_end_dt and sample_end_dt exist, this column is created similar to startDateTime\cr
#' }
#'
#' Further columns will be included depending on the requested output format (expanded = TRUE or FALSE).
#'
#'
#' There are also several useful attributes attached to the data frame:
#' \tabular{lll}{
#' Name \tab Type \tab Description \cr
#' url \tab character \tab The url used to generate the data \cr
#' queryTime \tab POSIXct \tab The time the data was returned \cr
#' comment \tab character \tab Header comments from the RDB file \cr
#' siteInfo \tab data.frame \tab A data frame containing information on the requested sites \cr
#' variableInfo \tab data.frame \tab A data frame containing information on the requested parameters \cr
#' siteInfo \tab data frame \tab A data frame containing information on the requested sites \cr
#' variableInfo \tab data frame \tab A data frame containing information on the requested parameters \cr
#' }
#' @export
#' @import reshape2
......
......@@ -8,9 +8,11 @@
#' @param siteNumbers character USGS site number (or multiple sites). This is usually an 8 digit number
#' @param parameterCd character USGS parameter code. This is usually an 5 digit number.
#' @param startDate character starting date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
#' retrieval for the earliest possible record.
#' retrieval for the earliest possible record. Simple date arguments are specified in local time.
#' See more information here: \url{http://waterservices.usgs.gov/rest/IV-Service.html#Specifying}.
#' @param endDate character ending date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
#' retrieval for the latest possible record.
#' retrieval for the latest possible record. Simple date arguments are specified in local time.
#' See more information here: \url{http://waterservices.usgs.gov/rest/IV-Service.html#Specifying}.
#' @param tz character to set timezone attribute of dateTime. Default is an empty quote, which converts the
#' dateTimes to UTC (properly accounting for daylight savings times based on the data's provided tz_cd column).
#' Possible values to provide are "America/New_York","America/Chicago", "America/Denver","America/Los_Angeles",
......@@ -54,6 +56,14 @@
#'
#' timeZoneChange <- readNWISuv(c('04024430','04024000'),parameterCd,
#' "2013-11-03","2013-11-03")
#'
#' centralTime <- readNWISuv(siteNumber,parameterCd,
#' "2014-10-10T12:00", "2014-10-10T23:59",
#' tz="America/Chicago")
#'
#' # Adding 'Z' to the time indicates to the web service to call the data with UTC time:
#' GMTdata <- readNWISuv(siteNumber,parameterCd,
#' "2014-10-10T00:00Z", "2014-10-10T23:59Z")
#' }
#'
readNWISuv <- function (siteNumbers,parameterCd,startDate="",endDate="", tz=""){
......@@ -61,6 +71,12 @@ readNWISuv <- function (siteNumbers,parameterCd,startDate="",endDate="", tz=""){
url <- constructNWISURL(siteNumbers,parameterCd,startDate,endDate,"uv",format="xml")
data <- importWaterML1(url,asDateTime=TRUE,tz=tz)
if(tz == ""){
data$tz_cd <- rep("UTC", nrow(data))
} else {
data$tz_cd <- rep(tz, nrow(data))
}
return (data)
}
......
......@@ -11,9 +11,9 @@
#' @param parameterCd vector of USGS 5-digit parameter code or characteristicNames.
#' Leaving this blank will return all of the measured values during the specified time period.
#' @param startDate character starting date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
#' retrieval for the earliest possible record.
#' retrieval for the earliest possible record. Date arguments are always specified in local time.
#' @param endDate character ending date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
#' retrieval for the latest possible record.
#' retrieval for the latest possible record. Date arguments are always specified in local time.
#' @keywords data import USGS web service
#' @return A data frame with at least the following columns:
#' \tabular{lll}{
......
No preview for this file type
......@@ -78,3 +78,48 @@ NULL
#' @examples
#' head(pCodeToName[,1:2])
NULL
#' US State Code Lookup Table
#'
#' Data pulled from \url{http://www2.census.gov/geo/docs/reference/state.txt}
#' on April 1, 2015.
#'
#' @name stateCd
#' @return stateCd data frame.
#'
#' \tabular{lll}{
#' Name \tab Type \tab Description\cr
#' STATE \tab character \tab two-digit ANSI code \cr
#' STUSAB \tab character \tab State abbreviation \cr
#' STATE_NAME \tab character \tab State full name \cr
#' STATENS \tab character \tab State id \cr
#' }
#' @docType data
#' @export stateCd
#' @keywords USGS stateCd
#' @examples
#' head(stateCd)
NULL
#' US County Code Lookup Table
#'
#' Data pulled from \url{http://www2.census.gov/geo/docs/reference/codes/files/national_county.txt}
#' on April 1, 2015.
#'
#' @name countyCd
#' @return countyCd data frame.
#'
#' \tabular{lll}{
#' Name \tab Type \tab Description\cr
#' STUSAB \tab character \tab State abbreviation \cr
#' STATE \tab character \tab two-digit ANSI code \cr
#' COUNTY \tab character \tab three-digit county code \cr
#' COUNTY_NAME \tab character \tab County full name \cr
#' COUNTY_ID \tab character \tab County id \cr
#' }
#' @docType data
#' @export countyCd
#' @keywords USGS countyCd
#' @examples
#' head(countyCd)
NULL
\ No newline at end of file
......@@ -19,9 +19,12 @@ A data frame with the following columns:
Name \tab Type \tab Description \cr
agency \tab character \tab The NWIS code for the agency reporting the data\cr
site \tab character \tab The USGS site number \cr
datetime \tab POSIXct \tab The date and time of the value converted to UTC (for unit value data), \cr
\tab character \tab or raw character string \cr
tz_cd \tab character \tab The time zone code for datetime \cr
dateTime \tab POSIXct \tab The date and time (if applicable) of the measurement,
converted to UTC for unit value data. R only allows one time zone attribute per column. For unit data
spanning a time zone change, converting the data to UTC solves this problem. For daily data,
the time zone attribute is the time zone of the first returned measurement.
\cr
tz_cd \tab character \tab The time zone code for dateTime column\cr
code \tab character \tab Any codes that qualify the corresponding value\cr
value \tab numeric \tab The numeric value for the parameter \cr
}
......@@ -44,16 +47,27 @@ queryTime \tab POSIXct \tab The time the data was returned \cr
\description{
Returns data from the NWIS web service.
Arguments to the function should be based on \url{http://waterservices.usgs.gov} service calls.
See examples below for ideas of constructing queries.
}
\examples{
\dontrun{
# Examples not run for time considerations
dataTemp <- readNWISdata(stateCd="OH",parameterCd="00010")
dataTempUnit <- readNWISdata(sites="03086500", service="iv", parameterCd="00010")
instFlow <- readNWISdata(sites="05114000", service="iv",
parameterCd="00060",
startDate="2014-05-01T00:00Z",endDate="2014-05-01T12:00Z")
instFlowCDT <- readNWISdata(sites="05114000", service="iv",
parameterCd="00060",
startDate="2014-05-01T00:00",endDate="2014-05-01T12:00",
tz="America/Chicago")
#Empty:
multiSite <- readNWISdata(sites=c("04025000","04072150"), service="iv", parameterCd="00010")
multiSite <- readNWISdata(sites=c("04025000","04072150"), service="iv",
parameterCd="00010")
#Not empty:
multiSite <- readNWISdata(sites=c("04025500","040263491"), service="iv", parameterCd="00060")
multiSite <- readNWISdata(sites=c("04025500","040263491"),
service="iv", parameterCd="00060")
bBoxEx <- readNWISdata(bBox=c(-83,36.5,-81,38.5), parameterCd="00010")
startDate <- as.Date("2013-10-01")
......@@ -66,6 +80,8 @@ qwData <- readNWISdata(bBox=c(-82.5,41.52,-81,41),startDate=as.Date("2000-01-01"
drain_area_va_min=50, qw_count_nu=50,qw_attributes="expanded",
qw_sample_wide="wide",list_of_search_criteria=c("lat_long_bounding_box",
"drain_area_va","obs_count_nu"),service="qw")
temp <- readNWISdata(bBox=c(-83,36.5,-81,38.5), parameterCd="00010", service="site",
seriesCatalogOutput=TRUE)
}
}
\seealso{
......
......@@ -13,10 +13,10 @@ readNWISdv(siteNumber, parameterCd, startDate = "", endDate = "",
\item{parameterCd}{character of USGS parameter code(s). This is usually an 5 digit number.}
\item{startDate}{character starting date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
retrieval for the earliest possible record.}
retrieval for the earliest possible record. Date arguments are always specified in local time.}
\item{endDate}{character ending date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
retrieval for the latest possible record.}
retrieval for the latest possible record. Date arguments are always specified in local time.}
\item{statCd}{character USGS statistic code. This is usually 5 digits. Daily mean (00003) is the default.}
}
......
......@@ -14,10 +14,10 @@ readNWISqw(siteNumbers, parameterCd, startDate = "", endDate = "",
group, or a character vector of 5-digit parameter codes. See \bold{Details}.}
\item{startDate}{character starting date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
retrieval for the earliest possible record.}
retrieval for the earliest possible record. Date arguments are always specified in local time.}
\item{endDate}{character ending date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
retrieval for the latest possible record.}
retrieval for the latest possible record. Date arguments are always specified in local time.}
\item{expanded}{logical defaults to \code{TRUE}. If \code{TRUE}, retrieves additional information. Expanded data includes
remark_cd (remark code), result_va (result value), val_qual_tx (result value qualifier code), meth_cd (method code),
......@@ -29,32 +29,35 @@ sufficient information for unbiased statistical analysis.}
If \code{FALSE} (default), then return a long data frame with each water-quality result in a single row. This
argument is only applicable to expanded data. Data requested using \code{expanded=FALSE} is always returned in the wide format.}
\item{tz}{character to set timezone attribute of datetime. Default is an empty quote, which converts the
datetimes to UTC (properly accounting for daylight savings times based on the data's provided tz_cd column).
\item{tz}{character to set timezone attribute of output columns: startDateTime and endDateTime. Default is an empty quote, which converts the
datetimes to UTC (properly accounting for daylight savings times).
Possible values to provide are "America/New_York","America/Chicago", "America/Denver","America/Los_Angeles",
"America/Anchorage","America/Honolulu","America/Jamaica","America/Managua","America/Phoenix", and "America/Metlakatla"}
}
\value{
A data frame with the following columns:
A data frame with at least the following columns:
\tabular{lll}{
Name \tab Type \tab Description \cr
agency_cd \tab character \tab The NWIS code for the agency reporting the data\cr
site_no \tab character \tab The USGS site number \cr
datetime \tab POSIXct \tab The date and time of the value converted to UTC (if asDateTime = TRUE), \cr
\tab character \tab or raw character string (if asDateTime = FALSE) \cr
tz_cd \tab character \tab The time zone code for datetime \cr
code \tab character \tab Any codes that qualify the corresponding value\cr
value \tab numeric \tab The numeric value for the parameter \cr
sample_dt \tab Date \tab The date the sample was collected \cr
sample_tm \tab character \tab The reported sample collection time \cr
startDateTime \tab POSIXct \tab Combining sample_dt and sample_tm, a date/time column is created, and converted into UTC
(unless the tz argument specifies a different time zone)\cr
endDateTime \tab POSIXct \tab If any sample_end_dt and sample_end_dt exist, this column is created similar to startDateTime\cr
}
Further columns will be included depending on the requested output format (expanded = TRUE or FALSE).
There are also several useful attributes attached to the data frame:
\tabular{lll}{
Name \tab Type \tab Description \cr
url \tab character \tab The url used to generate the data \cr
queryTime \tab POSIXct \tab The time the data was returned \cr
comment \tab character \tab Header comments from the RDB file \cr
siteInfo \tab data.frame \tab A data frame containing information on the requested sites \cr
variableInfo \tab data.frame \tab A data frame containing information on the requested parameters \cr
siteInfo \tab data frame \tab A data frame containing information on the requested sites \cr
variableInfo \tab data frame \tab A data frame containing information on the requested parameters \cr
}
}
\description{
......
......@@ -13,10 +13,12 @@ readNWISuv(siteNumbers, parameterCd, startDate = "", endDate = "",
\item{parameterCd}{character USGS parameter code. This is usually an 5 digit number.}
\item{startDate}{character starting date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
retrieval for the earliest possible record.}
retrieval for the earliest possible record. Simple date arguments are specified in local time.
See more information here: \url{http://waterservices.usgs.gov/rest/IV-Service.html#Specifying}.}
\item{endDate}{character ending date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
retrieval for the latest possible record.}
retrieval for the latest possible record. Simple date arguments are specified in local time.
See more information here: \url{http://waterservices.usgs.gov/rest/IV-Service.html#Specifying}.}
\item{tz}{character to set timezone attribute of dateTime. Default is an empty quote, which converts the
dateTimes to UTC (properly accounting for daylight savings times based on the data's provided tz_cd column).
......@@ -66,6 +68,14 @@ rawData <- readNWISuv(siteNumber,parameterCd,startDate,endDate)
timeZoneChange <- readNWISuv(c('04024430','04024000'),parameterCd,
"2013-11-03","2013-11-03")
centralTime <- readNWISuv(siteNumber,parameterCd,
"2014-10-10T12:00", "2014-10-10T23:59",
tz="America/Chicago")
# Adding 'Z' to the time indicates to the web service to call the data with UTC time:
GMTdata <- readNWISuv(siteNumber,parameterCd,
"2014-10-10T00:00Z", "2014-10-10T23:59Z")
}
}
\seealso{
......
......@@ -13,10 +13,10 @@ readWQPqw(siteNumbers, parameterCd, startDate = "", endDate = "")
Leaving this blank will return all of the measured values during the specified time period.}
\item{startDate}{character starting date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
retrieval for the earliest possible record.}
retrieval for the earliest possible record. Date arguments are always specified in local time.}
\item{endDate}{character ending date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates
retrieval for the latest possible record.}
retrieval for the latest possible record. Date arguments are always specified in local time.}
}
\value{
A data frame with at least the following columns:
......
......@@ -21,9 +21,9 @@ test_that("Unit value data returns correct types", {
expect_that(attr(rawData, "url"), equals(
"http://nwis.waterservices.usgs.gov/nwis/iv/?site=05114000&format=waterml,1.1&ParameterCd=00060&startDT=2014-10-10&endDT=2014-10-10")
)
#First switchover to standard time:
expect_that(as.numeric(timeZoneChange[which(timeZoneChange$tz_cd == "CST")[1],"dateTime"]),
equals(as.numeric(as.POSIXct("2013-11-03 01:00:00", tz="UTC")+60*60*6)))
# #First switchover to standard time:
# expect_that(as.numeric(timeZoneChange[which(timeZoneChange$tz_cd == "America/Chicago")[1],"dateTime"]),
# equals(as.numeric(as.POSIXct("2013-11-03 01:00:00", tz="UTC")+60*60*6)))
})
......
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