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Created

Example of alternative to grouped bar chart of http://blogs.the451group.com/information_management/2013/10/01/nosql-linkedin-skills-index-september-2013/ per request by @dseverski

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nosql-451.R
R
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library(ggplot)
 
nosql.df <- read.csv("nosql.csv", header=TRUE)
nosql.df$Database <- factor(nosql.df$Database,
levels=c("MongoDB","Cassandra","Redis","HBase","CouchDB",
"Neo4j","Riak","MarkLogic","Couchbase","DynamoDB"))
 
gg <- ggplot(data=nosql.df, aes(x=Quarter, y=Index))
gg <- gg + geom_point(aes(color=Quarter), size=3)
gg <- gg + facet_grid(Database~.)
gg <- gg + coord_flip()
gg <- gg + theme_bw()
gg <- gg + labs(x="", title="NoSQL LinkedIn Skills Index\nSeptember 2013")
gg <- gg + theme(legend.position = "none")
gg <- gg + theme(strip.text.x = element_blank())
gg
nosql.csv
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Database,Quarter,Index
MongoDB,2012-09,19895
MongoDB,2012-12,27968
MongoDB,2013-03,37604
MongoDB,2013-06,48020
MongoDB,2013-09,60000
Cassandra,2012-09,6614
Cassandra,2012-12,8437
Cassandra,2013-03,11562
Cassandra,2013-06,14427
Cassandra,2013-09,17552
Redis,2012-09,6354
Redis,2012-12,8697
Redis,2013-03,11302
Redis,2013-06,14166
Redis,2013-09,16770
HBase,2012-09,4010
HBase,2012-12,5312
HBase,2013-03,6614
HBase,2013-06,8177
HBase,2013-09,9479
CouchDB,2012-09,3489
CouchDB,2012-12,4010
CouchDB,2013-03,4531
CouchDB,2013-06,5312
CouchDB,2013-09,5833
Neo4j,2012-09,885
Neo4j,2012-12,1406
Neo4j,2013-03,1666
Neo4j,2013-06,2187
Neo4j,2013-09,2708
Riak,2012-09,885
Riak,2012-12,1145
Riak,2013-03,1145
Riak,2013-06,1406
Riak,2013-09,1666
MarkLogic,2012-09,885
MarkLogic,2012-12,1406
MarkLogic,2013-03,1406
MarkLogic,2013-06,1406
MarkLogic,2013-09,1406
Couchbase,2012-09,364
Couchbase,2012-12,624
Couchbase,2013-03,885
Couchbase,2013-06,1145
Couchbase,2013-09,1666
DynamoDB,2012-09,104
DynamoDB,2012-12,364
DynamoDB,2013-03,364
DynamoDB,2013-06,364
DynamoDB,2013-09,885

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