R: Engineering Economics Analysis for Engineering Projects Cost Analysis

# Engineering Economics Analysis for Engineering Projects Cost Analysis

## Documentation for package ‘EngrEcon’ version 1.0.0

- DESCRIPTION file
- Package README

## Help Pages

annual_to_future | Calculate future value from a uniform annual payment 'annual_to_future' Compute future values from uniform annual payments using uniform series compound amount factor (uscaf)
annual_to_present | Calculate present value from a uniform annual payment 'annual_to_present' Compute present value from uniform annual payments using uniform series present worth factor (uswf)
cashflow | Calculate present value and annual value from a given future payments of cash flows 'cashflow' Compute a given cash flow data's present value and annual value. The first column is the cash flow year;the rest is the cash flow money. The number of rows is the lifespan
effective_i | Calculate effective annual interest rate for a known nominal rate and compounding period per year 'effective_i' Compute future value nominal rate and compounding period per year, and frequency.
future_to_annual | Compute annual payment value from future value 'future_to_annual' calculate annual value from future value using the accumulated amount after years using sinking fund factor (sff)
future_to_present | Compute present values from future payments (or cash flow) 'future_to_present' calculate present value from future value using present worth factor (pwf)
gradient_to_annual | Calculate annual value from uniform gradient payment 'gradient_to_annual' Compute annual value from uniform gradient payments using uniform gra present worth factor (ugaw)
gradient_to_future | Calculate future value from uniform gradient payment 'gradient_to_future' Compute future value from uniform gradient payments using uniform gradient present worth factor (ugfw)
gradient_to_present | Calculate present value from uniform gradient payment 'gradient_to_present' Compute present value from uniform gradient payments using uniform gradient present worth factor (ugpw)
interest_during_construction | Compute interest during construction 'interest_during_construction' calculate interest during construction using a monthly discount factor
om_distribute | Calculate the present value of periodic operations and maintenance costs 'om_distribute' Distribute periodic present value operations and maintenance costs over a project life span, discount over project, and compute present value
present_to_annual | Compute annual payment from present value 'present_to_annual' Compute uniform series annual payments from present value using capital recovery factor (crf)
present_to_future | Compute future values from present value