Overview
PINstimation provides utilities for the estimation of probability of informed trading models: original PIN (PIN) in Easley and O’Hara (1992) and Easley et al. (1996); multilayer PIN (MPIN) in Ersan (2016); Adjusted PIN (AdjPIN) in Duarte and Young (2009); and volume- synchronized PIN (VPIN) in Easley et al. (2011, 2012). Various computation methods suggested in the literature are included. Data simulation tools and trade classification algorithms are among the supplementary utilities. The package enables fast and precise solutions for the sophisticated, error-prone and time-consuming estimation procedure of the probability of informed trading measures, and it is compact in the sense detailed estimation results can be achieved by solely the use of raw trade level data.
New Features in Version 0.1.3 (forthcoming…)
We have updated the
initials_adjpin()
function, which generates initial parameter sets for the adjusted PIN model, to align with the algorithm outlined in Ersan and Ghachem (2024).The function
adjpin()
now includes the time spent on generating initial parameter sets in the total time displayed in the output.The function
ivpin()
is forthcoming…
New Features in Version 0.1.2
- We introduced the function
classify_trades()
that enables users to classify high-frequency (HF) trades individually, without aggregating them, and the functionaggregate_trades()
, which enables users to aggregate high-frequency (HF) trades at different frequencies.
Installation
The easiest way to get PINstimation is the following:
install.packages("PINstimation")
To get a bugfix or to use a feature from the development version, you can install the development version of PINstimation from GitHub.
# install.packages("devtools")
# library(devtools)
devtools::install_github("monty-se/PINstimation")
Loading the package
Get Started!
For a smooth introduction to the main functionalities of the package, as well as useful tips how to get started with PINstimation, please refer to the section Get Started.A detailed description of the package functions is available in online documentation
Note to frequent users
If you are a frequent user of PINstimation, you might want to avoid repetitively loading the package PINstimation whenever you open a new R session. You can do that by adding PINstimation to .R profile
either manually, or using the function load_pinstimation_for_good()
.
To automatically load PINstimation, run load_pinstimation_for_good()
, and the following code will be added to your .R profile.
if (interactive()) suppressMessages(require(PINstimation))
After restart of the R session, PINstimation will be loaded automatically, whenever a new R session is started. To remove the automatic loading of PINstimation, just open the .R profile for editing usethis::edit_r_profile()
, find the code above, and delete it.
Resources
For a smooth introduction to, and useful tips on the main functionalities of the package, please refer to:
- The sections Get Started, and Online documentation on the package site.
- The package documentation in PDF format is available for download here.
- An overview of the scientific research underlying the package is available here.
Contributions
The package makes a series of original contributions to the literature:
An efficient, user-friendly, and comprehensive implementation of the standard models of probability of informed trading.
A first implementation of the estimation of the multilayer probability of informed trading (MPIN) as developed by Ersan (2016).
A comprehensive treatment of the estimation of the adjusted probability of informed trading as introduced by Duarte and Young (2009). This includes the implementation of the factorization of the AdjPIN likelihood function, various algorithms to generate initial parameter sets, and MLE method.
The introduction of the expectation-conditional maximization (ECM) algorithm as an alternative method to estimate the models of probability of informed trading. The contribution is both theoretical and computational. The theoretical contribution is included in the paper by Ghachem and Ersan (2022b). The implementation of the ECM algorithm allows the estimation of PIN, MPIN, as well as the adjusted PIN model.
Implementation of three layer-detection algorithms, namely of preexistent algorithm of Ersan (2016), as well as two newly developed algorithms, described in Ersan and Ghachem (2022a), and Ghachem and Ersan (2022b), respectively.
A first implementation of the estimation of the volume-synchronized probability of informed trading (VPIN) as introduced by Easley et al (2011, 2012).
One do-it-all function for trade classification in buyer-initiated or seller-initiated trades that implements the standard algorithms in the field, namely
Tick
,Quote
,LR
, andEMO
.
Alternative packages
To our knowledge, there are two preexisting R packages for the estimation of the probability of informed trading: pinbasic, and InfoTrad.
Getting help
If you encounter a clear bug, please file an issue with a minimal reproducible example on GitHub.