Description Usage Arguments Value See Also Examples
This is different enough to dcast
in reshape2
that
it needs writing again specifically for ICD codes. This function packages
the core reshape
function. Empty strings and NA values will be
dropped, and everything else kept. No validation of the ICD codes is done.
1 2 | icd9WideToLong(x, visitId = NULL, icdLabels = NULL, icdName = "icdCode",
icdRegex = c("icd", "diag", "dx_", "dx"), verbose = FALSE)
|
x |
|
visitId |
The name of the column in the data frame which contains the
patient or visit identifier. Typically this is the visit identifier, since
patients come leave and enter hospital with different ICD-9 codes. It is a
character vector of length one. If left empty, or |
icdLabels |
vector of column names in which codes are found. If NULL, all columns matching icd or ICD will be included. |
icdName |
character vector length one containing the new column name for the ICD codes, defaults to "icdCode" |
icdRegex |
vector of character strings containg a regex to identify ICD-9 diagnosis
columns to try (case-insensitive) in order. Default is |
verbose |
single logical value, defaults to |
data frame with visitId column named the same as input, and a column
named by icd.name
containing all the non-NA and non-empty codes
found in the wide input data.
Other ICD-9 convert: icd9ChaptersToMap
,
icd9DropLeadingZeroes
,
icd9LongToWide
,
icd9PartsToShort
1 2 3 4 | widedf <- data.frame(visitId = c("a", "b", "c"),
icd9_01 = c("441", "4424", "441"),
icd9_02 = c(NA, "443", NA))
icd9WideToLong(widedf)
|
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.