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Merge pull request #28 from ropensci/pd-R
Partial dependence fixes to plug memory leaks
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Original file line number | Diff line number | Diff line change |
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# need to make this to avoid possible memory leak in data.table melt | ||
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melt_aorsf <- | ||
function(data, | ||
id.vars, | ||
measure.vars, | ||
variable.name = "variable", | ||
value.name = "value") { | ||
if (!is.data.frame(data)) { | ||
stop("Input 'data' must be a data frame.") | ||
} | ||
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if (!is.character(id.vars)) { | ||
stop("Input 'id.vars' must be a character vector.") | ||
} | ||
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if (!is.character(measure.vars)) { | ||
stop("Input 'measure.vars' must be a character vector.") | ||
} | ||
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# Select id variables and measure variables | ||
id_data <- data[id.vars] | ||
measure_data <- data[measure.vars] | ||
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# Create a sequence variable to represent the variable names | ||
variable_data <- rep(names(measure_data), each = nrow(data)) | ||
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# Reshape the data | ||
long_data <- data.frame(id_data, | ||
variable = variable_data, | ||
value = unlist(measure_data, use.names = FALSE)) | ||
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names(long_data)[names(long_data) == 'variable'] <- variable.name | ||
names(long_data)[names(long_data) == 'value'] <- value.name | ||
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return(long_data) | ||
} | ||
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