wrMisc (version 1.15.3.1)

convMatr2df: Convert matrix (eg with redundant) row-names to data.frame

Description

This function provides flexible converting of matrix to data.frame. For example repeated/redundant rownames are not allowed in data.frame(), thus the corresponding column-names have to be renamed using a counter-suffix. In case of non-redundant rownames, a new column 'addIniNa' will be introduced at beginning to document the initial (redundant) rownames, non-redundant rownames will be created. Finally, this functions converts the corrected matrix to data.frame and checks/converts columns for transforming character to numeric if possible. If the input is a data.frame containing factors, they will be converted to character before potential conversion. Note: for simpler version (only text to numeric) see from this package .convertMatrToNum .

Usage

convMatr2df(
  mat,
  addIniNa = TRUE,
  duplTxtSep = "_",
  silent = FALSE,
  callFrom = NULL
)

Value

This functions returns a data.frame equivalent to the input matrix, an additional column named 'ID' will be added for initial rownames

Arguments

mat

matrix (or data.frame) to be converted

addIniNa

(logical) if TRUE an additional column ('ID') with rownames will be added at beginning

duplTxtSep

(character) separator for enumerating replicated names

silent

(logical) suppres messages

callFrom

(character) allow easier tracking of message(s) produced

See Also

numeric, for simpler version (only text to numeric) see from this package .convertMatrToNum

Examples

dat1 <- matrix(1:10, ncol=2)
rownames(dat1) <- letters[c(1:3,2,5)]
## as.data.frame(dat1)  ...  would result in an error
convMatr2df(dat1)

df1 <- data.frame(a=as.character((1:3)/2), b=LETTERS[1:3], c=1:3)
str(convMatr2df(df1))

df2 <- df1; df2$b <- as.factor(df2$b)
str(convMatr2df(df2))