Publications by DR VY
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1 List of Mergers files = paste0("C:/Users/dratnadiwakara2/Documents/OneDrive - Louisiana State University/Raw Data/HMDA/Ultimate Panel Data/",as.character(2000:2016),".fst") panel = lapply(files, read_fst, as.data.table = TRUE,columns=c("respondentid","agencycode","reportername","asofdate","parentname","parentidentifier","reporterhomecity","re...
2721 sym R (105021 sym/61 pcs) 3 img
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Web https://sites.google.com/view/dimuthu-ratnadiwakara/fin-4820 Course Overview This three-credit undergraduate course introduces students to financial applications of R programming. This course demonstrates how to use R for analyzing data and financial modeling. Using practical examples and real world data, students will learn basics of R prog...
4331 sym
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rm(list=ls()) library(stargazer) library(plyr) library(lfe) library(zoo) library(scales) library(rdrobust) library(data.table) library(ggplot2) library(dplyr) library(fst) library(fixest) zdata[,Selling_premium:=zdata$sales_price/zdata$adj_purch_price] zdata[,Renter_fraction:=zdata$renters/zdata$totalpopulation] zdata[,Purchase_price...
217 sym R (37551 sym/30 pcs) 1 img
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slr_tracts <- read.dbf(file = "C:/Users/dratnadiwakara2/Documents/OneDrive - Louisiana State University/Projects/Climate Change Mortgage/slr_tracts_orgslr.dbf",as.is = TRUE) slr_counties <- unique(substr(slr_tracts$FIPS,1,5)) slr_states <- unique(substr(slr_counties,1,2)) files <- NULL files <- c(files,list.files(pattern="*.fst",path = "C:/...
4367 sym R (54705 sym/38 pcs) 5 img
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fundedloans <- read_fst(path = paste0(path,"fundedloans_trad_vs_upstart.fst"),as.data.table = T) 1 APR This section compares the difference between the APR the borrower would have received under the traditional underwriting model to the actual APR. The sample consists of funded loans in the second half of 2019 (CFPB model outputs are only availa...
1432 sym R (16220 sym/19 pcs) 14 img
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loans <- read_fst(paste0(path,"loan_data_fico_prob_Oct272020.fst"),as.data.table = T) loans[,credithistorycat:=ifelse(individual_credit_history_days<120*12,"lt10","gt10")] loans[,year_term:=paste(loanyear,loan_term)] loans[,zip_year:=paste(zip,loanyear)] loans[,ficoby100:=cr_fico/100] setnames(loans, c("annual_income.x","borrower_a...
855 sym R (15188 sym/14 pcs) 2 img
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slr_tracts <- read.dbf(file = "C:/Users/dratnadiwakara2/Documents/OneDrive - Louisiana State University/Projects/Climate Change Mortgage/slr_tracts_orgslr.dbf",as.is = TRUE) slr_counties <- unique(substr(slr_tracts$FIPS,1,5)) slr_states <- unique(substr(slr_counties,1,2)) files <- NULL files <- c(files,list.files(pattern="*.fst",path = "C:/...
4094 sym R (26602 sym/21 pcs) 3 img
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1 What is R? R is a dialect of the S language. S language was developed by John Chambers as an internal statistical environment. Created in 1991 by Ross Ihaka and Robert Gentlemen. Announced to the public in 1993. It is free! Very active and vibrant user community. Facilitates data manupulation, calculation, and graphics. Base system runs most f...
5490 sym R (2268 sym/41 pcs)
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class: center, middle, inverse, title-slide # Lecture 1 ## The Promise of FinTech ### Rajesh Narayanan ### Department of Finance, LSU ### 2021/01/11 (updated: 2021-01-10) --- # Table of contents 1. [Prologue](#prologue) 2. [FinTech](#FinTech) 3. [Course Overview](#Course Overview) 4. [Course Highlights](#Highlights) --- clas...
8230 sym
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rm(list=ls()) library(stargazer) library(plyr) library(lfe) library(zoo) library(scales) library(rdrobust) library(data.table) library(ggplot2) library(dplyr) library(fst) library(fixest) zdata[,Selling_premium:=zdata$sales_price/zdata$adj_purch_price] zdata[,Renter_fraction:=zdata$renters/zdata$totalpopulation] zdata[,Purchase_price...
251 sym R (40053 sym/31 pcs) 2 img