HKdata

Daily air pollution levels and
 hospital admissions due to respiratory and 
cardiovascular causes,
between 1 January 1994 and 31 December 1997,
Hong Kong.

datasets

Extending the functionalities of the 'VGAM' package with
additional functions and datasets. At present, 'VGAMextra'
comprises new family functions (ffs) to estimate several time
series models by maximum likelihood using Fisher scoring,
unlike popular packages in CRAN relying on optim(), including
ARMA-GARCH-like models, the Order-(p, d, q) ARIMAX model (non-
seasonal), the Order-(p) VAR model, error correction models
for cointegrated time series, and ARMA-structures with Student-t
errors. For independent data, new ffs to estimate the inverse-
Weibull, the inverse-gamma, the generalized beta of the second
kind and the general multivariate normal distributions are
available. In addition, 'VGAMextra' incorporates new VGLM-links
for the mean-function, and the quantile-function (as an alternative
to ordinary quantile modelling) of several 1-parameter distributions,
that are compatible with the class of VGLM/VGAM family functions.
Currently, only fixed-effects models are implemented. All functions
are subject to change; see the NEWS for further details on the
latest changes.

Victor Miranda

VGAMextra

Additions and Extensions of the 'VGAM' Package

Thomas Yee

HKdata function

This is a subset of the data
analyzed in Xia and Tong (2006) which 
stores the following time series:<dl>
 <dt>no</dt>
<dd>Time vector, 
</dd> <dt>cardio, resp</dt>
<dd>Integer.
 Daily hospital admissions due to respiratory and 
cardiovascular causes, 1 January 1994 and 31 December 1997.</dd> <dt>no2, so2, rsp, o3</dt>
<dd>Numeric.
 Daily mean average of \(\textrm{NO}_{2}\), 
 \(\textrm{SO}_{2}\), respirable
 suspended particles (rsp; that is
 \(\textrm{PM}_{10}\)), and
 \(\textrm{O}_{3}\), in parts per billion (ppb).</dd> <dt>temp, hum</dt>
<dd>Numeric.
 Daily mean average of temperature (Celsius deg.) and humidity (%)</dd> <dt>mon, tue, wed, thur, fri, sat</dt>
<dd>Factors with two levels. Weekdays/weekends indicator variables. 
</dd> 
 
</dl>

Format

Air pollution and hospital admissions due to respiratory and 
cardiovascular causes, Hong Kong. — HKdata

This is a subset of the data
analyzed in Xia and Tong (2006) which 
stores the following time series:<dl>
 <dt>no</dt>
<dd>Time vector, 
</dd>

 <dt>cardio, resp</dt>
<dd>Integer.
 Daily hospital admissions due to respiratory and 
cardiovascular causes, 1 January 1994 and 31 December 1997.</dd>

 <dt>no2, so2, rsp, o3</dt>
<dd>Numeric.
 Daily mean average of \(\textrm{NO}_{2}\), 
 \(\textrm{SO}_{2}\), respirable
 suspended particles (rsp; that is
 \(\textrm{PM}_{10}\)), and
 \(\textrm{O}_{3}\), in parts per billion (ppb).</dd>

 <dt>temp, hum</dt>
<dd>Numeric.
 Daily mean average of temperature (Celsius deg.) and humidity (%)</dd>

 <dt>mon, tue, wed, thur, fri, sat</dt>
<dd>Factors with two levels. Weekdays/weekends indicator variables. 
</dd>

 
 
</dl>

HKdata: Air pollution and hospital admissions due to respiratory and cardiovascular causes, Hong Kong.

Description

Usage

Arguments

Format

References

Examples