Colleagues
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System info:
Version 1.3.0 (2001-06-22) on NT
ESS v. 5.1.18 using emacs ver. 20.4
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I have generated an object (class = by) with NA values and want to plot
the output as a bargraph:
x2 <- by(scl.nos, species, sum)
These data are summed counts of fish by species
x2
INDICES: AGI
[1] 0.729927
------------------------------------------------------------
INDICES: BAR
[1] NA
------------------------------------------------------------
INDICES: BYS
[1] 85.71429
------------------------------------------------------------
INDICES: CHA
[1] 2.919708
------------------------------------------------------------
INDICES: CIN
[1] 36.31983
------------------------------------------------------------
INDICES: CSU
[1] 2381.685
------------------------------------------------------------
INDICES: CYP
[1] 1.260504
------------------------------------------------------------
INDICES: ETB
[1] 11.62791
------------------------------------------------------------
INDICES: FRO
[1] 0.7142857
------------------------------------------------------------
INDICES: GSH
[1] NA
------------------------------------------------------------
INDICES: HAK
[1] 2.976854
------------------------------------------------------------
INDICES: HJO
[1] 85.78232
------------------------------------------------------------
INDICES: HOK
[1] 16.59766
------------------------------------------------------------
INDICES: IDI
[1] 4.379562
------------------------------------------------------------
INDICES: JMM
[1] 3.928571
------------------------------------------------------------
INDICES: LAN
[1] NA
------------------------------------------------------------
INDICES: LPA
[1] 0.729927
------------------------------------------------------------
INDICES: MAL
[1] 0.729927
------------------------------------------------------------
INDICES: MMU
[1] NA
------------------------------------------------------------
INDICES: NOS
[1] NA
------------------------------------------------------------
INDICES: ORH
[1] 2.980198
------------------------------------------------------------
INDICES: RBM
[1] 17.08163
------------------------------------------------------------
INDICES: RBT
[1] 17.14286
------------------------------------------------------------
INDICES: RBY
[1] 0.7142857
------------------------------------------------------------
INDICES: RCO
[1] NA
------------------------------------------------------------
INDICES: RHY
[1] 12.85714
------------------------------------------------------------
INDICES: RIB
[1] 0.729927
------------------------------------------------------------
INDICES: SAW
[1] 0.729927
------------------------------------------------------------
INDICES: SCH
[1] 0.3571429
------------------------------------------------------------
INDICES: SDO
[1] 399.7593
------------------------------------------------------------
INDICES: SSI
[1] 0.3571429
------------------------------------------------------------
INDICES: SWA
[1] 0.7142857
------------------------------------------------------------
INDICES: TUB
[1] 12.49747
When I try to plot them I get an error due to the NA values, I think:
barplot(x2,
+ xlab='fish length (SL or TL) cm',
+ ylab='individuals per nm towed', col='black')
Error in plot.window(xlim, ylim, log, asp, ...) :
need finite ylim values
Plot.table gives me the same error and I tried na.rm=TRUE to no effect.
Is this simple to solve? I guess I need to replace the NAs with zeros in
one of the by attributes?
Help will be appreciated.
Thanks
Sam
Sam McClatchie, Research scientist (fisheries acoustics))))))))))
NIWA (National Institute of Water & Atmospheric Research Ltd)
PO Box 14 901, Kilbirnie, Wellington, New Zealand
s.mcclatchie at niwa.cri.nz
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