daily2climatol {climatol}R Documentation

Convert daily data files to Climatol input format

Description

This function can be useful to prepare the Climatol input files when the user have their daily data in per station individual files.

Usage

daily2climatol(stfile, stcol=1:6, datcol=1:4, varcli, anyi=NA, anyf=NA,
  mindat=365, sep='', dec='.', na.strings='NA', header=FALSE)

Arguments

stfile

Name of the file with the list of data file names and station coordinates, codes and names.

stcol

Columns in stfile holding data file names, longitudes, latitudes, elevations and station codes and names. (Defaults to 1:6. Use 0 for codes and/or names columns if they are missing, and numeric values will be assigned.)

datcol

Columns in data files (named as in the first column of stfile) holding year, month, day, value.

varcli

Acronym of the name of the studied climatic variable.

anyi

First year to study (defaults to the first year of available data).

anyf

Last year to study (defaults to the last year of available data).

mindat

Minimum required number of data per station. (Defaults to 365 daily data.)

sep

Field separator in all files, whether data or stations. (Defaults to white space.)

dec

Symbol of the decimal point. (Defaults to '.'.)

na.strings

Missing data code in the original daily data. (Defaults to 'NA'.)

header

Logical value indicating whether input files have a header line or not. (Defaults to FALSE, but this parameter does not apply to CSV files, which are expected to have a header.)

Details

Many users have their daily series in separate files (one per station), either in text format (as the files used by RClimDex) or in spread-sheets (from which they can be exported to CSV text files). This function can be used to read these daily data files and write the input files needed by the homogen function of this Climatol package.

When either station codes or names are missing in the stations file, its corresponding column must be set to 0. In this case, codes and/or names will be assigned with numeric values.

Field separator, decimal point and the presence of a header line must be consistent in all files (data files and station list).

Value

This function does not return any value.

See Also

homogen

Examples

wd <- tempdir() #temporal working directory for the examples
wd0 <- setwd(wd)
data(dailies)
write.table(stations,'stations.txt',sep=',',row.names=FALSE,col.names=FALSE)
write.table(WY003,'WY003.txt',sep=',',row.names=FALSE,col.names=FALSE)
write.table(WY018,'WY018.txt',sep=',',row.names=FALSE,col.names=FALSE)
write.table(WY020,'WY020.txt',sep=',',row.names=FALSE,col.names=FALSE)
daily2climatol('stations.txt',c(1,3,2,4,0,0),2:5,'TestVar',sep=',',na.strings='-99.9')
#Return to user's working directory:
setwd(wd0)
#Input and output files can be found in directory:
print(wd)

[Package climatol version 3.1.2 Index]