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-
- _d_a_t_a _i_n_p_u_t
-
- read.table(file=, header=FALSE, sep="", row.names,
- col.names, as.is=FALSE, na.strings="NA", skip=0)
-
- _A_r_g_u_m_e_n_t_s:
-
- file : the name of the file which the data are to be
- read from. Each row of the table appears as
- one line of the file.
-
- header : a logical value indicating whether the file
- contains the names of the variables as its
- first line.
-
- sep : the field separator character. Values on
- each line of the file are separated by this
- character.
-
- row.names : a vector of row names. This can be a vector
- giving the actual row names, or a single
- number giving the column of the table which
- contains the row names, or character string
- giving the name of the table column contain-
- ing the row names.
-
- col.names : a vector of optional names for the variables.
- The default is to use "V" followed by the
- column number
-
- as.is : the default behavior of read.table is to con-
- vert non-numeric variables to factors. The
- variable as.is controls this conversion. Its
- value is either a vector of logicals (values
- are recycled if necessary), or a vector of
- numeric indices which specify which columns
- should be left as character strings.
-
- na.strings : a vector strings which are to be interpreted
- as NA values.
-
- skip : the number of lines of the data file to skip
- before beginning to read data.
-
- _V_a_l_u_e:
-
- A data frame containing a representation of the data in
- the file. This function is the principal means of
- reading tabular data into R.
-
- _S_e_e _A_l_s_o:
-
- scan, data.frame.
-
-