read_rdd {eplusr}

Read an EnergyPlus Report Data Dictionary File

Description

read_rdd() takes a file path of EnergyPlus Report Data Dictionary (RDD) file, parses it and returns a RddFile object. read_mdd() takes a file path of EnergyPlus Meter Data Dictionary (MDD) file, parses it and returns a MddFile object.

Usage

read_rdd(path)

read_mdd(path)

Arguments

path

For read_rdd(), a file path of EnergyPlus EnergyPlus Report Data Dictionary file with an extension .rdd. For read_mdd(), a file path of EnergyPlus EnergyPlus Meter Data Dictionary file with an extension .mdd

Details

Basically, a RddFile and MddFile object is a data.table with 5 columns and 3 additional attributes:

5 Columns:

*index: Integer. Index of each variable.

• reported_time_step: Character. Reported time step for the variables. Possible value: Zone and HVAC.

• report_type: Character. Report types. Possible value: Average, Sum and Meter. Note that Meter is only for MDD file. All variables will have report_type being Meter.

• variable: Character. Report variable names.

• units: Character. Units of reported values. NA if report values do not have units.

3 Attributes:

• eplus_version: A numeric_version object. The version of EnergyPlus used during the simulation.

• eplus_build: A single string. The build tag of EnergyPlus used during the simulation.

• datetime: A DateTime (POSIXct). The time when the simulation started.

Value

For read_rdd(), an RddFile object. For read_mdd(), a MddFile object.

Author(s)

Hongyuan Jia

Examples

## Not run: 
# run simulation and get the err file
idf_name <- "1ZoneUncontrolled.idf"
epw_name <-  "USA_CA_San.Francisco.Intl.AP.724940_TMY3.epw"
idf_path <- path_eplus_example("8.8", idf_name)
epw_path <- path_eplus_weather("8.8", epw_name)
job <- eplus_job(idf_path, epw_path)
job$run(dir = tempdir())

# read the err file
read_rdd(job$locate_output(".rdd"))
read_mdd(job$locate_output(".mdd"))

## End(Not run)