Issues with plotting years

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Code was ran in RStudio ( version 0.98.1091, R 3.1.2) on a Mac running 10.10. Not enough reputation to post image so please run the R code if you can.

My issue is with the way my plots are displaying my points as points instead of bars. I have a data frame defined as below.

ebola = c(0,26,1,2,0,2,0,0)
dengue = c(474,1943,2209,963,1498,1720,1360,1364)
rabies = c(1336,1353,1938,3116,908,1264,2499,1130)
year = c("2007","2008","2009","2010","2011","2012","2013","2014")
virus_data_by_year = data.frame(year,ebola,dengue,rabies)
virus_data_by_year

The above functions work fine. My problem comes when I try to plot let's say year vs. ebola with the following function:

with(virus_data_by_year,plot(year,ebola,type="p",xlab="year",ylab="ebola"))

Even though I use the point element in my type argument it shows

bad graph

My issue with the above plot is that it shows my data as horizontal bars instead of as points. When I change the type argument to a line it still displays the same graph instead of having points connected by a line like below.

plot (year,ebola, type = "b")

good graph

I can graph it perfectly fine if I graph the original two vectors so this seem to be a data frame issue. Furthermore it's limited to the year one because if I use the function below it still plots a line graph fine.

with(virus_data_by_year,plot(ebola,dengue,type = "b"))

asked 26 secs ago

Pythonic Mac

1

Issues with plotting years