1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
## Test setup
if(FALSE) {
library("RUnit")
library("gdata")
}
test.write.fwf <- function()
{
## 'x' must be a data.frame or matrix
checkException(write.fwf(1:10))
checkException(write.fwf(list(1:10)))
## Only single value is allowed in 'na'
checkException(write.fwf(data.frame(1:10, letters[1:10]), na=c("", " ")))
## Example dataset
num <- round(c(733070.345678, 1214213.78765456, 553823.798765678,
1085022.8876545678, 571063.88765456, 606718.3876545678,
1053686.6, 971024.187656, 631193.398765456, 879431.1),
digits=3)
testData <- data.frame(num1=c(1:10, NA),
num2=c(NA, seq(from=1, to=5.5, by=0.5)),
num3=c(NA, num),
int1=c(as.integer(1:4), NA, as.integer(4:9)),
fac1=factor(c(NA, letters[1:9], "hjh")),
fac2=factor(c(letters[6:15], NA)),
cha1=c(letters[17:26], NA),
cha2=c(NA, "longer", letters[25:17]),
stringsAsFactors=FALSE)
levels(testData$fac1) <- c(levels(testData$fac1), "unusedLevel")
testData$Date <- as.Date("1900-1-1")
testData$Date[2] <- NA
testData$POSIXt <- as.POSIXct(strptime("1900-1-1 01:01:01",
format="%Y-%m-%d %H:%M:%S"))
testData$POSIXt[5] <- NA
## Output
## is tested with regular tests
## formatInfo
## Default output
formatInfoT <- data.frame(colname=c("num1", "num2"),
nlevels=c(0, 0),
position=c(1, 4),
width=c(2, 3),
digits=c(0, 1),
exp=c(0, 0),
stringsAsFactors=FALSE)
testData1 <- testData[, c("num1", "num2")]
testData1M <- as.matrix(testData1)
formatInfo <- write.fwf(testData1, formatInfo=TRUE)
checkEquals(formatInfo, formatInfoT)
formatInfoM <- write.fwf(testData1M, formatInfo=TRUE)
checkEquals(formatInfoM, formatInfoT)
## Scientific notation
dd <- options("digits"); options(digits = 7)
testData2 <- data.frame(a=123, b=pi, c=1e8, d=1e222)
formatInfo <- write.fwf(x=testData2, formatInfo=TRUE)
checkEquals(formatInfo$width, c(3, 8, 5, 6))
checkEquals(formatInfo$digits, c(0, 6, 0, 0))
checkEquals(formatInfo$exp, c(0, 0, 2, 3))
options(dd) ## reset old options
## 'na' can either decrease or increase the width
## --> values of int1 have width 1 and using na="" should not increase
## the width
formatInfo <- write.fwf(testData[, "int1", drop=FALSE], formatInfo=TRUE,
na="")
checkEquals(formatInfo$width, 1)
## --> values of int1 have width 1 and using na="1234" should increase
## the width to 4
formatInfo <- write.fwf(testData[, "int1", drop=FALSE], formatInfo=TRUE,
na="1234")
checkEquals(formatInfo$width, 4)
## rowCol
formatInfoTR <- data.frame(colname=c("row", "num1", "num2"),
nlevels=c(11, 0, 0),
position=c(1, 4, 7),
width=c(2, 2, 3),
digits=c(0, 0, 1),
exp=c(0, 0, 0),
stringsAsFactors=FALSE)
testData3 <- testData[, c("num1", "num2")]
testData3M <- as.matrix(testData3)
formatInfoR <- write.fwf(testData3, formatInfo=TRUE, rownames=TRUE,
rowCol="row")
checkEquals(formatInfoR, formatInfoTR)
formatInfoR <- write.fwf(testData3M, formatInfo=TRUE, rownames=TRUE,
rowCol="row")
checkEquals(formatInfoR, formatInfoTR)
## QuoteInfo alone does not have any effect
formatInfoI <- write.fwf(testData3, formatInfo=TRUE, quoteInfo=TRUE)
checkEquals(formatInfoI, formatInfoT)
formatInfoI <- write.fwf(testData3M, formatInfo=TRUE, quoteInfo=TRUE)
checkEquals(formatInfoI, formatInfoT)
## Quote
formatInfoTQ <- formatInfoT
formatInfoTQ$position <- c(1, 6)
formatInfoTQ$width <- c(4, 5)
formatInfoQ <- write.fwf(testData3, formatInfo=TRUE, quote=TRUE)
checkEquals(formatInfoQ, formatInfoTQ)
formatInfoQ <- write.fwf(testData3M, formatInfo=TRUE, quote=TRUE)
checkEquals(formatInfoQ, formatInfoTQ)
## Quote without quoteInfo
formatInfoTQI <- formatInfoT
formatInfoTQI$position <- c(2, 6)
formatInfoQI <- write.fwf(testData3, formatInfo=TRUE, quote=TRUE,
quoteInfo=FALSE)
checkEquals(formatInfoQI, formatInfoTQI)
formatInfoQI <- write.fwf(testData3M, formatInfo=TRUE, quote=TRUE,
quoteInfo=FALSE)
checkEquals(formatInfoQI, formatInfoTQI)
## Width
## --> default width for num1 is 2
testData4 <- testData[, "num1", drop=FALSE]
testData4M <- as.matrix(testData[, "num1", drop=FALSE])
formatInfo <- write.fwf(testData4, width=10, formatInfo=TRUE)
checkEquals(formatInfo$width, 10)
formatInfo <- write.fwf(testData4M, width=10, formatInfo=TRUE)
checkEquals(formatInfo$width, 10)
## Too small value in width (this also tests recycling)
## --> proper width for num1 is 2, while for num2 it is 3
checkException(write.fwf(testData[, c("num1", "num2")], width=2))
checkException(write.fwf(testData[, c("num1", "num2")], width=c(2, 1)))
## Done
cat("\nDONE.\n\n")
}
|
