[R] Plotting a graph for every Level of a Factor

[jim holtman]

Is this what you want:

> x  # input data
   Year Species Stock  TACC Catch
1  2001     ORH   OR1  5000  4687
2  2002     ORH   OR1  6000  3215
3  2003     ORH   OR1  7000  6782
4  2004     ORH   OR1  9000 10000
5  2005     ORH   OR1  9000 12000
6  2001     ORH   OR3 20000  7892
7  2002     ORH   OR3 25000 27000
8  2003     ORH   OR3 30000 32000
9  2004     ORH   OR3 30000 29000
10 2005     ORH   OR3 30000 30000
11 2001     ORH   OR5 23000 10982
12 2002     ORH   OR5 23000 24590
13 2003     ORH   OR5 23000 24035
14 2004     ORH   OR5 25000 29008
15 2005     ORH   OR5 20000 21092
> # split for plotting
> x.sp <- split(x, list(x$Species, x$Stock))
> # plot the data
> for (i in x.sp){
+     mp <- barplot(i$TACC, names.arg=i$Year,
+         main=paste(i$Species[1], i$Stock[1]),
+         ylim=c(0,max(i$TACC, i$Catch)))
+     lines(mp, i$Catch, type='b', pch=19)
+ }
>


On Wed, Jan 7, 2009 at 6:10 PM, jimdare <jamesdare26 at gmail.com> wrote:
>
> Hello,
>
> Using the dataset below, is there a way to generate a bar/line plot for the
> TACC/Catch of every lvl of stock?  i.e. OR1,OR3,OR5.  The picture at the
> bottom of this post is an example of the bar/line plot for OR1 which was
> generated when OR1 was the only stock in the table.  This was created, with
> help from Marc Schwartz, using:
>
>> mp <- barplot(fish$TACC, space = 0, names.arg = fish$Year,ylim=c(0,13000))
>> lines(mp, fish$Catch, type = "b", pch = 19)
>
> Is there a way to instruct R to plot this for one particular stock from the
> table below, and, if so, is there a way to automate it so it plots a figure
> for each individual stock.
>
> Data frame (fish)
>
> Year   Species Stock TACC Catch
> 2001       ORH     OR1     5000     4687
> 2002       ORH     OR1     6000     3215
> 2003       ORH     OR1     7000     6782
> 2004       ORH     OR1     9000     10000
> 2005       ORH     OR1     9000     12000
> 2001       ORH     OR3     20000           7892
> 2002       ORH     OR3     25000           27000
> 2003       ORH     OR3     30000           32000
> 2004       ORH     OR3     30000           29000
> 2005       ORH     OR3     30000           30000
> 2001       ORH     OR5     23000           10982
> 2002       ORH     OR5     23000           24590
> 2003       ORH     OR5     23000           24035
> 2004       ORH     OR5     25000           29008
> 2005       ORH     OR5     20000           21092
>
> http://www.nabble.com/file/p21340956/OR1.gif
> --
> View this message in context: http://www.nabble.com/Plotting-a-graph-for-every-Level-of-a-Factor-tp21340956p21340956.html
> Sent from the R help mailing list archive at Nabble.com.
>
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>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?