extract_hazus_functions: Extract HAZUS damage functions for specified function type

In hazus: Damage functions from FEMA's HAZUS software for use in modeling financial losses from natural disasters

Description

Extract HAZUS damage functions for specified function type

Usage

  extract_hazus_functions(func_type = "depth",
    long_format = TRUE)

Arguments

func_type	Flood damage or depreciation function type. Choose one of depth (depth-damage functions), velocity (velocity-depth-damage functions), ag (damage functions for agriculture, based on duration of flooding), bridge (damage function for bridges based on the severity of the flood) or deprec (depreciation with age).
long_format	Logical flag to indicate whether raw data is desired or in a format suited for plotting using ggplot2. Damage function data from HAZUS are typically in the wide format.

Value

data frame, the number of rows and columns depend on the first argument of the function.

Author(s)

Gopi Goteti

Examples

# depth-damage functions
fl_dept <- extract_hazus_functions()
# depth-damage functions, raw data only
fl_dept <- extract_hazus_functions(long_format = FALSE)
# velocity-depth-damage functions
fl_velo <- extract_hazus_functions(func_type = "velocity")
# agriculture damage functions
fl_agri <- extract_hazus_functions(func_type = "ag")
# bridge damage functions
fl_bridge <- extract_hazus_functions(func_type = "bridge")
# depreciation functions
fl_depr <- extract_hazus_functions(func_type = "deprec")
# columns names of all flood damage functions
lapply(ls(pattern = "fl_"), FUN = function(x) colnames(get(x)))
# flood occupancy types and description
data(haz_fl_occ)
head(haz_fl_occ)

Example output

[[1]]
[1] "Crop"           "FunctionSource" "JulianDay"      "loss_type"     
[5] "damage"        

[[2]]
[1] "BridgeDmgFnId" "Occupancy"     "Source"        "Description"  
[5] "ret_period"    "damage"       

[[3]]
[1] "Age"       "Occupancy" "deprec"   

[[4]]
 [1] "Occupancy"    "DmgFnId"      "Source"       "Description"  "ft04m"       
 [6] "ft03m"        "ft02m"        "ft01m"        "ft00"         "ft01"        
[11] "ft02"         "ft03"         "ft04"         "ft05"         "ft06"        
[16] "ft07"         "ft08"         "ft09"         "ft10"         "ft11"        
[21] "ft12"         "ft13"         "ft14"         "ft15"         "ft16"        
[26] "ft17"         "ft18"         "ft19"         "ft20"         "ft21"        
[31] "ft22"         "ft23"         "ft24"         "Comment"      "ft00_5"      
[36] "ft01_5"       "ft02_5"       "ft03_5"       "ft04_5"       "ft05_5"      
[41] "ft06_5"       "ft07_5"       "ft08_5"       "ft09_5"       "ft10_5"      
[46] "ft11_5"       "ft12_5"       "ft13_5"       "Source_Table" "Occupy_Class"
[51] "Cover_Class" 

[[5]]
[1] "struc_type" "num_story"  "vel"        "dep"       

  Occupy_Class Occupancy   Occ_Desc1                         Occ_Desc2 SIC_code
1          RES      RES1 Residential            Single Family Dwelling         
2          RES      RES2 Residential                       Mobile Home         
3          RES     RES3A Residential      Multi Family Dwelling Duplex         
4          RES     RES3B Residential   Multi Family Dwelling 3-4 Units         
5          RES     RES3C Residential   Multi Family Dwelling 5-9 Units         
6          RES     RES3D Residential Multi Family Dwelling 10-19 Units         

hazus documentation built on May 1, 2019, 8:24 p.m.