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| [[Category:Opasnet]] | | [[Category:Opasnet]] |
| [[Category:R tools]] | | [[Category:R tools]] |
| | [[Category:OpasnetUtils]] |
| {{method|moderator=|stub=Yes}} | | {{method|moderator=|stub=Yes}} |
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| ==Similar to== | | ==Similar to== |
| [[Decisions.apply]] | | |
| | Functions apply.decisions and decisions.apply are depreciated. Consider using '''[[OpasnetUtils/CheckDecisions]]''' instead. |
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| ==Description== | | ==Description== |
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| apply.decisions takes a decision table and applies that to an assessment. | | apply.decisions takes a decision table and applies that to an assessment. |
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| dec is a decision data.frame that must have columns Decision, Option, Variable, Cell, Change, Result. It can have several variables. | | ==Parameters== |
| | * dec is a decision data.frame that must have columns Decision, Option, Variable, Cell, Change, Result. It can have several variables. |
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| ==Code== | | ==Code== |
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| <rcode
| | The R code for this can be found here: |
| name="answer"
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| label="Initiate functions"
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| graphics="1"
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| >
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| library(OpasnetBaseUtils)
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| library(xtable)
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| n <- 5
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| # APPLY.DECISIONS ############## apply.decisions takes a decision table and applies that to an assessment.
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| ## dec is a decision data.frame that must have columns Decision, Option, Variable, Cell, Change, Result. It can have several variables.
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| apply.decisions <- function(assessment) {
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| dec <- merge(assessment@decisions, assessment@dependencies, by.x = "Variable", by.y = "Name")
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| colnames(dec)[colnames(dec) == "Result.x"] <- "Result"
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| colnames(dec)[colnames(dec) == "Result.y"] <- "Name"
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| for(variables in unique(dec$Name)) { # Take one variable at a time.
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| dec.var <- dec[dec$Name == variables, ] # dec.var = variable-specific decisions
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| scenarios <- data.frame(temp = 1)
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| for(decisions in unique(dec.var$Decision)) { # Add BAU option to each decision and merge decisions.
| | https://www.opasnet.org/svn/opasnet_utils/trunk/R/ApplyDecisions.r |
| temp <- as.character(dec.var[dec.var$Decision == decisions, "Option"])
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| temp <- data.frame(Options = c(temp, "BAU"))
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| colnames(temp) <- decisions
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| scenarios <- merge(scenarios, temp)
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| }
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| var <- assessment@vars[[variables]]# as.character(dec$Name[1])]]
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| var@output <- merge(scenarios[colnames(scenarios) != "temp"], var@output)
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| for(s in 1:nrow(dec.var)) { # Each option row handled separately
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| cell <- gsub("^[ \t]+|[ \t]+$", "", as.character(dec.var$Cell[s])) # Leading and trailing whitespaces removed.
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| cell <- gsub(":[ \t]+", ":", cell) # Whitespaces removed after :
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| cell <- gsub(";[ \t]+", ";", cell) # Whitespaces removed after ;
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| cell <- gsub("[ \t]+:", ":", cell) # Whitespaces removed before :
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| cell <- gsub("[ \t]+;", ";", cell) # Whitespaces removed before ;
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| cell <- strsplit(cell, split = ";") # Separate cell identifiers (indices and locations)
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| cell <- strsplit(cell[[1]], split = ":")
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| cond <- as.character(dec.var$Decision[s])
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| cond <- var@output[, cond] == as.character(dec.var$Option[s]) # Only the rows with the relevant option.
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| for(r in 1:length(cell)) { # All Cell conditions extracted and combined with AND.
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| cond <- cond * (var@output[, cell[[r]][1]] == cell[[r]][2])
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| }
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| cond <- as.logical(cond)
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| if(dec.var$Change[s] == "Replace" )
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| {var@output[cond, "Result"] <- dec.var$Result[s]}
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| if(dec.var$Change[s] == "Add" )
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| {var@output[cond, "Result"] <- as.numeric(dec.var$Result[s]) + var@output[cond, "Result"]}
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| if(dec.var$Change[s] == "Multiply")
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| {var@output[cond, "Result"] <- as.numeric(dec.var$Result[s]) * var@output[cond, "Result"]}
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| }
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| assessment@vars[[variables]] <- var
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| }
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| return(assessment)
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| }
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| </rcode>
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| ==See also== | | ==See also== |