Dear R-user,
I'm trying to compare two sets of results and wanted to find out which
element in the two data frame/matrix are different.
I wrote the following function and it works ok, and gives me a long list of
"good" as outcomes.
CHECK<-
function (x = "file1", y = "file2")
{
for (i in 1:nrow(x)) {
for (j in 1:ncol(x)) {
if (x[i, j] == y[i, j]) {
print("good")
}
else {
print("check")
}
}
}
}
However, as the two datasets I was comparing are large (400*100 roughly),
so I would like to create a matrix to identify which ones are not same in
the two dataframes.
So I added 'CHECK_XY' in my code but when I run it, I got 'Error in
CHECK_XY[i, j] = c("good") : subscript out of bounds'.
Could anyone help please??
CHECK_1<-
function (x = "file1", y = "file2")
{
NROW <- nrow(x)
NCOL <- ncol(x)
CHECK_XY <- as.matrix(NA, NROW, NCOL)
for (i in 1:nrow(x)) {
for (j in 1:ncol(x)) {
if (x[i, j] == y[i, j]) {
CHECK_XY[i, j] = c("good")
}
else {
CHECK_XY[i, j] = c("check")
}
}
}
print(CHECK_XY)
}
Thanks!
HJ
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