It looks like read.table is reading the first line as a data value,
which is the default for read.table. Try using read.table with the
argument header=TRUE. Also, consider using a box and whiskers plot for
these data (?boxplot, ?lattice::bwplot).
-Matt
On Mon, 2010-07-05 at 12:08 -0400, Ian Bentley wrote:
> Hello!
>
> I need to make a plot with whispers that does the following.
>
> Reads in 50 files, each file containing 200 data points. A file looks like
> this:
> base100.log
> Send Receive
> 10.5 100.3
> 15.0 102.4
> ...
>
> There are 100 lines, each with two data points. I need to read in the 50
> files, and plot three lines
>
> The first line is the mean of the send column with whiskers indicating
> standard deviation (Each file represents one data point)
>
> The second line is the mean of the receive column, as above.
>
> the final plot is the mean of the two summed, with whiskers as above.
>
> There will be 50 data points on the final graph, one for each file.
>
> I've done this sort of a thing before, but I really can't figure out how to
> handle the different Columns.
>
> If I use read.table:
>
> x1 <- read.table("updateToSink1010.log")
>
> then x1 becomes a matrix, with two columns and 101 rows. -- including Send,
> Receive.
>
> Anyways, I'd appreciate a push in some direction - hopefully the right one
> :).
>
--
Matthew S. Shotwell
Graduate Student
Division of Biostatistics and Epidemiology
Medical University of South Carolina
http://biostatmatt.com
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