smooth_hist: Histogram smoothing for whitestripe
In neuroconductor-devel-releases/WhiteStripe: White Matter Normalization for Magnetic Resonance Images using WhiteStripe
Description
Usage
Arguments
Value
See Also
Examples
Description
Uses a generalized additive model (GAM) to smooth a
histogram for whitestripe
Usage
1
2
smooth_hist(x, y, deg = 4, k = floor(min(250, length(x)/2)),
method = "REML", ...)
Arguments
x
values of midpoints from hist
y
values of counts from hist
deg
degree of polynomials used
k
Number of knots
method
Method for smoothing for GAM
...
Arguments passed to gam
Value
List of objects: x and y coordinates of histogram, coefficients from GAM,
fitted values from GAM, the GAM model, the knots fitted, and degrees of polynomials
See Also
gam
Examples
1
2
3
4
5
6
7
8
9
data(t2.voi.hist)
y = t2.voi.hist$counts
x = t2.voi.hist$mids
x = x[!is.na(y)];
y = y[!is.na(y)]
# 30 used for speed of example
s.hist = smooth_hist(x, y, k=30)
plot(t2.voi.hist, border="red")
lines(s.hist)
neuroconductor-devel-releases/WhiteStripe documentation built on May 6, 2020, 3:21 p.m.
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Description Usage Arguments Value See Also Examples
Description
Uses a generalized additive model (GAM) to smooth a histogram for whitestripe
Usage
1 2 | smooth_hist(x, y, deg = 4, k = floor(min(250, length(x)/2)),
method = "REML", ...)
|
Arguments
x |
values of midpoints from |
y |
values of counts from |
deg |
degree of polynomials used |
k |
Number of knots |
method |
Method for smoothing for GAM |
... |
Arguments passed to |
Value
List of objects: x and y coordinates of histogram, coefficients from GAM, fitted values from GAM, the GAM model, the knots fitted, and degrees of polynomials
See Also
gam
Examples
1 2 3 4 5 6 7 8 9 | data(t2.voi.hist)
y = t2.voi.hist$counts
x = t2.voi.hist$mids
x = x[!is.na(y)];
y = y[!is.na(y)]
# 30 used for speed of example
s.hist = smooth_hist(x, y, k=30)
plot(t2.voi.hist, border="red")
lines(s.hist)
|
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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