# plot zoo objects with ggplot2;

# reference: http://stackoverflow.com/questions/3321489/r-ggplot-plotting-irregular-time-series/3321532#3321532

qplot.zoo <- function(x) {

if(all(class(x) != “zoo”)) stop(“x must be a zoo object”)

x.df <- data.frame(Date=index(x), Value=as.numeric(coredata(x)))

ggplot(x.df, aes(x=Date, y=Value)) + geom_line()+xlab(“Date”)+ylab(colnames(x))

}

# No two y-axis plotting with ggplot2

Hadley Wickham dose not like double y-axis plotting,

Source: http://tolstoy.newcastle.edu.au/R/e4/help/08/07/15603.html

# PyMacLab

PyMaclab (Python Macroeconomics Laboratory) is a Python package aimed to solve DSGE models in a convenient framework. It is now under development and maintained by Eric Scheffel.

**PyMaclab:**

*http://www.pymaclab.com*

https://github.com/escheffel/pymaclab

# Some Time Series Packages in R

zoo, xts: easy to manipulate time series data;

quantmod: fetch macro data from FRED;

# Chris Sims on Robins-Ritov’s Problem (via StackExchange)

# Manuals for all Rogue Wave Software Products

http://www.roguewave.com/portals/0/products/

List of manuals for all Rogue Wave Software products

# IMSL® Fortran Numerical Stat Library

“The IMSL STAT LIBRARY is a collection of FORTRAN subroutines and functions useful in research and statistical analysis. Each routine is designed and documented to be used in research activities as well as by technical specialists..”