readECLS_K1998: Connect to ECLS--K 1998 Data

Description

Opens a connection to an ECLS--K 1998 data file and returns an edsurvey.data.frame with information about the file and data.

Usage

readECLS_K1998(
  path = getwd(),
  filename = "eclsk_98_99_k8_child_v1_0.dat",
  layoutFilename = "Layout_k8_child.txt",
  forceReread = FALSE,
  verbose = TRUE
)

Value

an edsurvey.data.frame for the ECLS--K 1998 longitudinal dataset

Arguments

path: a character value to the full directory path(s) to the ECLS--K-extracted fixed-width-format (.dat) set of data files
filename: a character value of the name of the fixed-width (.dat) data file in the specified path to be read
layoutFilename: a character value of the filename of either the ASCII (.txt) layout file of the filename within the specified path or a character value of the filename of the SPSS syntax (.sps) layout file of the filename within the specified path
forceReread: a logical value to force rereading of all processed data. The default value of FALSE will speed up the read function by using existing read-in data already processed.
verbose: a logical value that will determine if you want verbose output while the readECLS-K1998 function is running to indicate processing progress. The default value is TRUE.

Author

Tom Fink

Details

Reads in the unzipped files downloaded from the ECLS--K 1998 longitudinal dataset(s) to an edsurvey.data.frame. The ECLS--K 1998--99 study consisted of three distinct separate datasets that cannot be combined: (1) Child Grades K--8 Data, (2) School Base-Year Data, and (3) Teacher Base-Year Data. The filename and layoutFilename arguments default to the corresponding Child K--8 default filenames.

Examples

Run this code

if (FALSE) {
# read-in student file with defaults
eclsk_df <- readECLS_K1998(path="~/ECLS_K/1998") #using defaults
d <- getData(eclsk_df, c("childid", "gender", "race"))
summary(d)
}

if (FALSE) {
# read-in with parameters specified
eclsk_df <- readECLS_K1998(path = "~/ECLS_K/1998", 
                           filename = "eclsk_98_99_k8_child_v1_0.dat", 
                           layoutFilename = "Layout_k8_child.txt", 
                           verbose = TRUE, 
                           forceReread = FALSE)
}

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