R arulessequence - Preparing data for cspade mining
I am trying to mine sequences in R via the arulessequence implementation of cspade.
My data frame looks like this:
items sequenceId eventId size
A 1 1 1
B 2 1 1
C 2 2 1
A 3 1 1
This data frame was created from an existing data set via the following code (removing unnecessary columns and creating the sequences):
data %>%
select(seqId, sequence, items) %>%
group_by(seqId) %>%
mutate(basketSize = 1, sequence = rank(sequence)) %>%
ungroup() %>%
mutate(seqId = ordered(seqId), sequence = ordered(sequence)) %>%
write.table("data.txt", sep=" ", row.names = FALSE, col.names = FALSE, quote = FALSE)
data <- read_baskets("data.txt", info = c("sequenceID", "eventID", "size"))
as(data, "data.frame") #shows the data frame above!
So far so good!
However when I try:
s1 <- cspade(data, parameter = list(support = 0.4), control = list(verbose = TRUE))
I get the following error:
Error in makebin(data, file) : 'eid' invalid (strict order)
I have read elsewhere that this is because cspade needs the event and sequence id to be ordered. But how do I specify this? Clearly ordering the factors before exporting them to ".txt" does not work.
Edit:
Some further details
Just to explain the code to create the data input for cspade a bit more. Originally the sequence-variable had some missing steps (e.g. 1,3,4 for some sequences) because I had filtered some events. Therefore I ran a rank-function on it to reindex the events per sequence. The size-column is totally unecessary (it is constant) but was included in the sample code in the documentation for arulessequence, which is why I included it too.
r sequence arules market-basket-analysis
asked Nov 15 '18 at 17:39
ZeiramZeiram
104
add a comment |
I am trying to mine sequences in R via the arulessequence implementation of cspade.
My data frame looks like this:
items sequenceId eventId size
A 1 1 1
B 2 1 1
C 2 2 1
A 3 1 1
This data frame was created from an existing data set via the following code (removing unnecessary columns and creating the sequences):
data %>%
select(seqId, sequence, items) %>%
group_by(seqId) %>%
mutate(basketSize = 1, sequence = rank(sequence)) %>%
ungroup() %>%
mutate(seqId = ordered(seqId), sequence = ordered(sequence)) %>%
write.table("data.txt", sep=" ", row.names = FALSE, col.names = FALSE, quote = FALSE)
data <- read_baskets("data.txt", info = c("sequenceID", "eventID", "size"))
as(data, "data.frame") #shows the data frame above!
So far so good!
However when I try:
s1 <- cspade(data, parameter = list(support = 0.4), control = list(verbose = TRUE))
I get the following error:
Error in makebin(data, file) : 'eid' invalid (strict order)
I have read elsewhere that this is because cspade needs the event and sequence id to be ordered. But how do I specify this? Clearly ordering the factors before exporting them to ".txt" does not work.
Edit:
Some further details
Just to explain the code to create the data input for cspade a bit more. Originally the sequence-variable had some missing steps (e.g. 1,3,4 for some sequences) because I had filtered some events. Therefore I ran a rank-function on it to reindex the events per sequence. The size-column is totally unecessary (it is constant) but was included in the sample code in the documentation for arulessequence, which is why I included it too.
r sequence arules market-basket-analysis
asked Nov 15 '18 at 17:39
ZeiramZeiram
104
add a comment |
I am trying to mine sequences in R via the arulessequence implementation of cspade.
My data frame looks like this:
items sequenceId eventId size
A 1 1 1
B 2 1 1
C 2 2 1
A 3 1 1
This data frame was created from an existing data set via the following code (removing unnecessary columns and creating the sequences):
data %>%
select(seqId, sequence, items) %>%
group_by(seqId) %>%
mutate(basketSize = 1, sequence = rank(sequence)) %>%
ungroup() %>%
mutate(seqId = ordered(seqId), sequence = ordered(sequence)) %>%
write.table("data.txt", sep=" ", row.names = FALSE, col.names = FALSE, quote = FALSE)
data <- read_baskets("data.txt", info = c("sequenceID", "eventID", "size"))
as(data, "data.frame") #shows the data frame above!
So far so good!
However when I try:
s1 <- cspade(data, parameter = list(support = 0.4), control = list(verbose = TRUE))
I get the following error:
Error in makebin(data, file) : 'eid' invalid (strict order)
I have read elsewhere that this is because cspade needs the event and sequence id to be ordered. But how do I specify this? Clearly ordering the factors before exporting them to ".txt" does not work.
Edit:
Some further details
Just to explain the code to create the data input for cspade a bit more. Originally the sequence-variable had some missing steps (e.g. 1,3,4 for some sequences) because I had filtered some events. Therefore I ran a rank-function on it to reindex the events per sequence. The size-column is totally unecessary (it is constant) but was included in the sample code in the documentation for arulessequence, which is why I included it too.
r sequence arules market-basket-analysis
asked Nov 15 '18 at 17:39
ZeiramZeiram
104
I am trying to mine sequences in R via the arulessequence implementation of cspade.
My data frame looks like this:
items sequenceId eventId size
A 1 1 1
B 2 1 1
C 2 2 1
A 3 1 1
This data frame was created from an existing data set via the following code (removing unnecessary columns and creating the sequences):
data %>%
select(seqId, sequence, items) %>%
group_by(seqId) %>%
mutate(basketSize = 1, sequence = rank(sequence)) %>%
ungroup() %>%
mutate(seqId = ordered(seqId), sequence = ordered(sequence)) %>%
write.table("data.txt", sep=" ", row.names = FALSE, col.names = FALSE, quote = FALSE)
data <- read_baskets("data.txt", info = c("sequenceID", "eventID", "size"))
as(data, "data.frame") #shows the data frame above!
So far so good!
However when I try:
s1 <- cspade(data, parameter = list(support = 0.4), control = list(verbose = TRUE))
I get the following error:
Error in makebin(data, file) : 'eid' invalid (strict order)
I have read elsewhere that this is because cspade needs the event and sequence id to be ordered. But how do I specify this? Clearly ordering the factors before exporting them to ".txt" does not work.
Edit:
Some further details
Just to explain the code to create the data input for cspade a bit more. Originally the sequence-variable had some missing steps (e.g. 1,3,4 for some sequences) because I had filtered some events. Therefore I ran a rank-function on it to reindex the events per sequence. The size-column is totally unecessary (it is constant) but was included in the sample code in the documentation for arulessequence, which is why I included it too.
r sequence arules market-basket-analysis
r sequence arules market-basket-analysis
asked Nov 15 '18 at 17:39
ZeiramZeiram
104
asked Nov 15 '18 at 17:39
ZeiramZeiram
104
asked Nov 15 '18 at 17:39
ZeiramZeiram
104
asked Nov 15 '18 at 17:39
ZeiramZeiram
104
asked Nov 15 '18 at 17:39
ZeiramZeiram
104
104
add a comment |
add a comment |
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