r - How can I access the data in a Cassandra Table using RCassandra -

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i need data in column of table cassandra database. using rcassandra this. after getting data need text mining on it. please suggest me how connect cassandra, , data r script using rcassandra

my rscript :

library(rcassandra) connect.handle <- rc.connect(host="127.0.0.1", port=9160) rc.cluster.name(connect.handle) rc.use(connect.handle, 'mykeyspace')  sourcetable <- rc.read.table(connect.handle, "sourcetable") print(ncol(sourcetable)) print(nrow(sourcetable)) print(sourcetable)

this print output as:

> print(ncol(sourcetable)) [1] 1 > print(nrow(sourcetable)) [1] 18 > print(sourcetable)  144 bbc news 158 ibn live 123  reuters 131 ibn live

but cassandra table contains 4 columns, here showing 1 column. need each column values separated. how individual column values(eg.each feedurl) changes should make in r script?

my cassandra table, named sourcetable

i have used cassandra , r correct cran jar files, rcassandra easier. rcassandra direct interface cassandra without use of java. connect cassandra use rc.connect return connection handle this.

rc.connect(host = <xxx>, port = <xxx>) rc.login(conn, username = "bar", password = "foo")

you can use rc.get command retrieve data or rc.readtable command read table data.

but, first should read this


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