Nothing
library(gdata)
if ( ! 'XLSX' %in% xlsFormats() )
{
try( installXLSXsupport() )
}
# iris.xls is included in the gregmisc package for use as an example
xlsfile <- file.path(path.package('gdata'),'xls','iris.xls')
iris.1 <- read.xls(xlsfile) # defaults to csv format
iris.1
iris.2 <- read.xls(xlsfile,method="csv") # specify csv format
iris.2
iris.3 <- read.xls(xlsfile,method="tab") # specify tab format
iris.3
stopifnot(all.equal(iris.1, iris.2))
stopifnot(all.equal(iris.1, iris.3))
exampleFile <- file.path(path.package('gdata'),'xls',
'ExampleExcelFile.xls')
exampleFileX <- file.path(path.package('gdata'),'xls',
'ExampleExcelFile.xlsx')
# see the number and names of sheets:
sheetCount(exampleFile)
if(! 'XLSX' %in% xlsFormats() )
{
cat("************************************************************\n")
cat("** DIFF IN THIS SECTION IS EXPECTED BECAUSE PERL PACKAGES **\n")
cat("** FOR SUPPORTING XLSX ARE NOT INSTALLED **\n")
cat("************************************************************\n")
} else {
sheetCount(exampleFileX)
}
sheetNames(exampleFile)
if(! 'XLSX' %in% xlsFormats() )
{
cat("************************************************************\n")
cat("** DIFF IN THIS SECTION IS EXPECTED BECAUSE PERL PACKAGES **\n")
cat("** FOR SUPPORTING XLSX ARE NOT INSTALLED **\n")
cat("************************************************************\n")
} else {
sheetNames(exampleFileX)
}
example.1 <- read.xls(exampleFile, sheet=1) # default is first worksheet
example.1
example.2 <- read.xls(exampleFile, sheet=2) # second worksheet by number
example.2
example.3 <- read.xls(exampleFile, sheet=3, header=FALSE) # third worksheet by number
example.3
example.4 <- read.xls(exampleFile, sheet=4, header=FALSE) # fourth worksheet by number
example.4
if(! 'XLSX' %in% xlsFormats() )
{
cat("************************************************************\n")
cat("** DIFF IN THIS SECTION IS EXPECTED BECAUSE PERL PACKAGES **\n")
cat("** FOR SUPPORTING XLSX ARE NOT INSTALLED **\n")
cat("************************************************************\n")
} else {
example.x.1 <- read.xls(exampleFileX, sheet=1) # default is first worksheet
print(example.x.1)
example.x.2 <- read.xls(exampleFileX, sheet=2) # second worksheet by number
print(example.x.2)
example.x.3 <- read.xls(exampleFileX, sheet=3, header=FALSE) # third worksheet by number
print(example.x.3)
example.x.4 <- read.xls(exampleFileX, sheet=4, header=FALSE) # fourth worksheet by number
print(example.x.4)
data <- read.xls(exampleFileX, sheet="Sheet Second") # and by name
print(data)
# load the third worksheet, skipping the first two non-data lines...
data <- read.xls(exampleFileX, sheet="Sheet with initial text", skip=2)
print(data)
}
## Check handling of skip.blank.lines=FALSE
example.skip <- read.xls(exampleFile, sheet=2, blank.lines.skip=FALSE)
example.skip
if(! 'XLSX' %in% xlsFormats() )
{
cat("************************************************************\n")
cat("** DIFF IN THIS SECTION IS EXPECTED BECAUSE PERL PACKAGES **\n")
cat("** FOR SUPPORTING XLSX ARE NOT INSTALLED **\n")
cat("************************************************************\n")
} else {
example.x.skip <- read.xls(exampleFileX, sheet=2, blank.lines.skip=FALSE)
example.x.skip
}
## Check handing of fileEncoding for latin-1 characters
latin1File <- file.path(path.package('gdata'),'xls', 'latin-1.xls' )
latin1FileX <- file.path(path.package('gdata'),'xls', 'latin-1.xlsx')
if(.Platform$OS.type=="unix")
{
example.latin1 <- read.xls(latin1File,
fileEncoding='latin1',
encoding='latin1',
stringsAsFactors=FALSE)
} else {
example.latin1 <- read.xls(latin1File,
#fileEncoding='latin1',
encoding='latin1',
stringsAsFactors=FALSE)
}
if(! 'XLSX' %in% xlsFormats() )
{
cat("************************************************************\n")
cat("** DIFF IN THIS SECTION IS EXPECTED BECAUSE PERL PACKAGES **\n")
cat("** FOR SUPPORTING XLSX ARE NOT INSTALLED **\n")
cat("************************************************************\n")
} else {
if(.Platform$OS.type=="unix")
{
example.latin1.x <- read.xls(latin1FileX,
fileEncoding='latin1',
encoding='latin1',
stringsAsFactors=FALSE)
} else {
example.latin1.x <- read.xls(latin1FileX,
#fileEncoding='latin1',
encoding='latin1',
stringsAsFactors=FALSE)
}
}
## Check handling of very wide file
wideFile <- file.path(path.package('gdata'),'xls', 'wide.xls' )
wideFileX <- file.path(path.package('gdata'),'xls', 'wide.xlsx')
example.wide <- read.xls(wideFile)
stopifnot(dim(example.wide)==c(0,256))
if( !'XLSX' %in% xlsFormats() )
{
cat("************************************************************\n")
cat("** DIFF IN THIS SECTION IS EXPECTED BECAUSE PERL PACKAGES **\n")
cat("** FOR SUPPORTING XLSX ARE NOT INSTALLED **\n")
cat("************************************************************\n")
} else {
example.wide.x <- read.xls(wideFileX)
stopifnot(dim(example.wide.x)==c(0,16384))
}
## Check handling of files with dates calulcated relative to
## 1900-01-01 and 1904-01-01
file.1900 <- file.path(path.package('gdata'),'xls', 'ExampleExcelFile_1900.xls' )
file.1904 <- file.path(path.package('gdata'),'xls', 'ExampleExcelFile_1904.xls' )
fileX.1900 <- file.path(path.package('gdata'),'xls', 'ExampleExcelFile_1900.xlsx')
fileX.1904 <- file.path(path.package('gdata'),'xls', 'ExampleExcelFile_1904.xlsx')
example.1900 <- read.xls(file.1900, sheet=3, header=FALSE)
example.1900
example.1904 <- read.xls(file.1904, sheet=3, header=FALSE)
example.1904
exampleX.1900 <- read.xls(file.1900, sheet=3, header=FALSE)
exampleX.1900
exampleX.1904 <- read.xls(file.1904, sheet=3, header=FALSE)
exampleX.1904
# all colmns should be identical
stopifnot( na.omit(example.1900 == exampleX.1900) )
stopifnot( na.omit(example.1904 == exampleX.1904) )
# column 8 will differ by 1462 due to different date baselines (1900 vs 1904)
stopifnot( na.omit(example.1900 [,-8] == example.1904 [,-8]) )
stopifnot( na.omit(exampleX.1900[,-8] == exampleX.1904[,-8]) )
stopifnot( na.omit(example.1900 [,8] - example.1904 [,8]) == 1462 )
stopifnot( na.omit(exampleX.1900[,8] - exampleX.1904[,8]) == 1462 )
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