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Previous functions of the day

density {stats}

Kernel Density Estimation
Package: 
stats
Version: 
R 3.0.2

The (S3) generic function density computes kernel density
estimates. Its default method does so with the given kernel and
bandwidth for univariate observations.

file.path {base}

Construct Path to File
Package: 
base
Version: 
R 3.0.2

Construct the path to a file from components in a platform-independent
way.

which {base}

Which indices are TRUE?
Package: 
base
Version: 
R 3.0.2

Give the TRUE indices of a logical object, allowing for array
indices.

file.path {base}

Construct Path to File
Package: 
base
Version: 
R 3.0.2

Construct the path to a file from components in a platform-independent
way.

paretotol.int {tolerance}

Pareto (or Power Distribution) Tolerance Intervals
Package: 
tolerance
Version: 
0.5.3
Version: 
0.5.3
Package: 
tolerance

Provides 1-sided or 2-sided tolerance intervals for data distributed according to either a Pareto distribution or
a power distribution (i.e., the inverse Pareto distribution).

getSymbols {quantmod}

Load and Manage Data from Multiple Sources
Package: 
quantmod
Version: 
0.4-0
Version: 
0.4-0
Package: 
quantmod

Functions to load and manage Symbols in
specified environment. Used by specifyModel
to retrieve symbols specified in first step of modelling
procedure. Not a true S3 method, but methods for different
data sources follow an S3-like naming convention. Additional
methods can be added by simply adhering to the convention.

Current src methods available are: yahoo, google,
MySQL, FRED, csv, RData, and oanda.

Data is loaded silently without user
assignment by default.

ksvm {kernlab}

Support Vector Machines
Package: 
kernlab
Version: 
0.9-19
Version: 
0.9-19
Package: 
kernlab

Support Vector Machines are an excellent tool for classification,
novelty detection, and regression. ksvm supports the
well known C-svc, nu-svc, (classification) one-class-svc (novelty)
eps-svr, nu-svr (regression) formulations along with
native multi-class classification formulations and
the bound-constraint SVM formulations.
ksvm also supports class-probabilities output and
confidence intervals for regression.

lubridate {lubridate}

Dates and times made easy with lubridate
Package: 
lubridate
Version: 
1.3.3
Version: 
1.3.3
Package: 
lubridate

Lubridate provides tools that make it easier to parse and
manipulate dates. These tools are grouped below by common
purpose. More information about each function can be
found in its help documentation.

Tweedie {tweedie}

Tweedie Distributions
Package: 
tweedie
Version: 
2.1.7
Version: 
2.1.7
Package: 
tweedie

Density, distribution function, quantile function and random
generation for the Tweedie family of distributions

periodReturn {quantmod}

Calculate Periodic Returns
Package: 
quantmod
Version: 
0.4-0
Version: 
0.4-0
Package: 
quantmod

Given a set of prices, return
periodic returns.