On 09/03/2012 11:18 PM, Eric Langley wrote:
<chomp>
I note:
Is it possible to have the output as an integer where 99 is the highest score?
It certainly is. The mean ranks are:
Item2 Item3 Item4 Totals
1.571429 1.642857 2.857143 3.928571
To make the highest score 99 (meaning the score for the highest ranked
item) and the lowest score -99 as on your examples:
# first convert high ranks to high numeric scores
revmeanranks<-4-meanranks
revmeanranks
Item1 Item2 Item3 Item4
2.428571 2.357143 1.142857 0.071429
# scale the score to the desired range
library(plotrix)
rescale(revmeanranks,c(-99,99))
Item1 Item2 Item3 Item4
99.000000 93.000046 -9.000015 -99.000000
# then just round or truncate your values to get integers
<chomp>
I note:
The look I am aiming to achieve (as shown here:
http://community.abeo.us/sample-graphs/ ) is a relative position
within the middle zero based horizontal axis. The mean is not
required. Since all bars are 14 units long the upper and lower values
note where the end of each bar should align, either to the right for
Highest or to the left for Lowest. The third graph shows both.
~eric
I think you may be doing something here that you don't intend. The point
of plots like this is to transform numeric values into lengths or areas.
If you don't maintain the same metric throughout the plot, the
relationship between the two is lost. If you were using vertical lines
to indicate the transformed mean ranks of the items, they could be
placed at the appropriate positions. As you use different edges of the
bars to place them, let's see, your bars are about 90 units wide so
there would be about a 180 unit offset between positive and negative
transformed mean ranks. Are you sure that you want to do this?
Jim
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
