R version 3.4.0 (2017-04-21) -- "You Stupid Darkness" Copyright (C) 2017 The R Foundation for Statistical Computing Platform: x86_64-pc-linux-gnu (64-bit) R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under certain conditions. Type 'license()' or 'licence()' for distribution details. R is a collaborative project with many contributors. Type 'contributors()' for more information and 'citation()' on how to cite R or R packages in publications. Type 'demo()' for some demos, 'help()' for on-line help, or 'help.start()' for an HTML browser interface to help. Type 'q()' to quit R. > x <- c(Price,76500,99500,112000,117000,118500,119000,121375,129900,135000,135000,139900,142000,145700,149900,161000,166500,167500,169900,170000,170000,175000,179900,181500,198700,199000,199500,199900,199900,199900,199900,199990,200000,204000,215000,218000,218000,219900,219900,225000,232900,234500,239500,239900,246900,247500,248900,249000,249500,249900,250000,254500,259000,264000,265000,269700,275000,279000,279900,284500,285000,289000,298000,298500,299500,299900,310000,315000,319900,335000,348000,349900,354900,390000,399500,399900,449000,449900,460000,500000,635000,674000) Error: object 'Price' not found Execution halted