Adjusted Prediction Model Performance Estimation
Calculating predictive model performance measures adjusted for predictor distributions using density ratio method (Sugiyama et al., (2012, ISBN:9781139035613)). L1 and L2 error for continuous outcome and C-statistics for binomial outcome are computed.

General Utility Functions for the 'Agricultural Production
Systems Simulator'
Contains functions designed to facilitate the loading
and transformation of 'Agricultural Production Systems Simulator'
output files <https://www.apsim.info>. Input meteorological data
(also known as "weather" or "met") files can also be generated
from user supplied data.

data.table (>= 1.9.4), lubridate (>= 1.3.3), stringr (>=
0.6.2), plyr (>= 1.8.1), sirad, methods, utils

data.table (>= 1.9.4), lubridate (>= 1.3.3), stringr (>=
0.6.2), plyr (>= 1.8.1), sirad, methods, utils, RSQLite

Base tools for facilitating the creation geo-processing functions in R.

Base tools for facilitating the creation geo-processing functions
in R.

Helper tools for facilitating basic geo-processing tasks, such as reading/writing
Shapefiles, merging polygons or generating terrain contours.
sp, raster, rgdal, methods, yesno, maptools

sp, raster, rgdal, methods, maptools, withr

Average Positive Predictive Values (AP) for Binary Outcomes and
Censored Event Times
Hengrui Cai <hengruicai@gmail.com>, Yan Yuan <yyuan@ualberta.ca>, Qian
Michelle Zhou <qz70@msstate.edu>, Bingying Li<dorisli1120@gmail.com>
We provide tools to estimate two prediction performance metrics,
the average positive predictive values (AP) as well as the well-known AUC
(the area under the receiver operator characteristic curve) for risk scores
or marker. The outcome of interest is either binary or censored event time.
Note that for censored event time, our functions estimate the AP and the
AUC are time-dependent for pre-specified time interval(s). A function that
compares the APs of two risk scores/markers is also included. Optional
outputs include positive predictive values and true positive fractions at
the specified marker cut-off values, and a plot of the time-dependent AP
versus time (available for event time data).
'APBinary.R' 'APtools.R' 'CompareAP.R' 'sum.I.R' 'APSurv.R'