se.bar {pda} | R Documentation |
Use se.bar
to see the standard error. Use lsd.bar
inside a
Lattice panel to display an LSD bar. Setting cap="SD"
displays an
SD rather than LSD. Setting crit=1
displays an SE. Asterisk
*
beside bar indicated that harmonic mean of unequal sample sizes
was used in computation.
se.bar(xpos, ypos, bar, mod = "", cap = "SE", adj = 0, width = .01, lty, horiz, ...) lsd.bar(object, ...) ## Default S3 method: lsd.bar(object, response, group, ...) ## S3 method for class 'lm': lsd.bar(object, data, factors, lsm, xpos, ypos, rdf = df.resid(object), level = .05, crit, cap = paste(100*level,"%\nLSD",sep=""), mod, tol, ...) ## S3 method for class 'lme': lsd.bar(object, data, ...) ## S3 method for class 'lmer': lsd.bar(object, data, ...)
xpos |
x position(s) of bar(s). |
ypos |
y position(s) of bar(s). |
bar |
height(s) of bar(s). |
mod |
modifier to bar caption ("*" used in lsd.bar for unequal sample sizes) |
cap |
caption for each bar (default for LSD with level; sets up standard deviation (SD) if set to "SD"; omitted if "") |
adj |
0 = left adjust caption to right of bar,1 = right adjust caption to left of bar. |
width |
relative width of bar ends (can be 0). |
object |
factor to be plotted on the horizontal axis (for
lsd.bar.default ) or fitted model object (for
lsd.bar.lm ). |
lsm |
least squares means object from lsmean |
group |
factor whose levels will be separate traces. |
response |
numeric vector. |
data |
data.frame in which to interpret the variables named
in object (taken from object if omitted). |
factors |
Character string of length 2 with names of object
and trace.factor as found in object and data (default is first 2
factors in object ). |
rdf |
residual degrees of freedom. |
level |
significance level. |
crit |
2-sided tail critical value of t-distribution. |
tol |
tolerance level |
lty |
line types |
horiz |
put bar horizontal if TRUE |
... |
optional specification of other parameters to be passed
to se.bar. Standard error bars (se.bar) or an LSD bar (lsd.bar)
are plotted at position(s) cbind(xpos,ypos) . Lsd.bar uses
the S method, with the lsd.bar.default calling
lsd.bar.lm after setting up the fit, data and factor.
lsd.bar.lm in turn calls se.bar
after determining the barheight using sample sizes, rdf, sd and level.
Confidence intervals or othermultiple bars can be constructed
ci.bar (see ci.plot ). |
a list containg xpos, ypos, bar, mod, cap, adj, width.
data(ToothGrowth) attach(ToothGrowth) lsd.bar(dose, len, supp) detach()