T.D.Rudolph wrote:
I conducted a frequency averaging procedure which left me with the data frame
below (Bin is an artifact of a cut() procedure and can be either
as.character or as.factor):
Bin Freq
1 (-180,-160] 7.904032
2 (-160,-140] 5.547901
3 (-140,-120] 4.522542
4 (-120,-100] 4.784184
5 (-100,-80] 4.490083
6 (-80,-60] 4.754268
7 (-60,-40] 5.597407
8 (-40,-20] 5.964031
9 (-20,0] 7.266519
10 (0,20] 6.947202
11 (20,40] 6.168730
12 (40,60] 4.918232
13 (60,80] 4.638589
14 (80,100] 4.288087
15 (100,120] 4.091052
16 (120,140] 4.451199
17 (140,160] 5.869740
18 (160,180] 7.796204
I am able to present the data as a histogram using barplot(), but on the
x-axis I would like to see the values that separate (i.e. that are located
between) my various bins (i.e. seq(-180,180,20)). Thus 0 would appear
directly under the centre line that separates (-20,0] and (0,20], etc.
barplot(angledist$Freq, xlab="Turning Angle", ylab="Average frequency (%)",
ylim=c(0,10))
?names.arg, ?xlim don't seem to do it but I could be wrong....
Tyler
Two comments:
1. In fact you probably want a histpgram on your un-cut()-ted data and
specify breaks. A barplot seems to be misleading for originally
continuous data.
2. You can suppress x-axis labels by specifying the argument xaxt="n"
and add your own x-axis later on by a call to axis() which allows to
specify the tick mark positions.
Uwe Ligges
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