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readstata13 0.11.0

• Initial support for Stata 18. Import .dtas files (Stata framesets) via read.dtas(). Alias variables are currently ignored with a warning.
• The select.cols argument accepts either variable names or column indices.
• Fix compilation on musl and other non-glibc based systems.
• Add package alias to readstata13.Rd

readstata13 0.10.1

• Fix writing NA and NA_character_ values
• Fix writing of STRLs on big endian systems

readstata13 0.10.0

• Fix sortlist attribute for dta format 119
• Fix compress option. In the past, unwanted conversions to integer type could occur.
• Fix encoding issues in variable and data labels
• Fix for reading/writing of format 119
• Fix build on FreeBSD
• New feature: improved handling of time and date formats
• New feature: collect warnings from read.dta13

readstata13 0.9.2

• Fix build on OSX

readstata13 0.9.1

• Allow reading only pre-selected variables
• Experimental support for format 119
• Improve partial reading
• Export of binary data from dta-files
• New function get.label.tables() to show all Stata label sets
• Fix check for duplicate labels
• Fixes in set.lang

readstata13 0.9.0

• Generate unique factor labels to prevent errors in factor definition
• Check interrupt for long read
• Fix storage size of character vectors in save.dta13
• Fix saving characters containing missings
• Implement partial reading of dta-files
• Fix an integer bug with saving data.frames of length requiring uint64_t

readstata13 0.8.5

• Fix errors on big-endian systems

readstata13 0.8.4

• Fix valgrind errors. converting from dta.write to writestr
• Fix for empty data label
• Make replace.strl default

readstata13 0.8.3

• Restrict length of varnames to 32 chars for compatibility with Stata 14
• Stop compression of doubles as floats. Now test if compression of doubles as interger types is possible.
• Add many function tests

readstata13 0.8.2

• Save NA values in character vector as empty string
• Convert.underscore=T will convert all non-literal characters to underscores
• Fix saving of Dates
• Save with convert.factors by default
• Test for NaN and inf values while writing missing values and replace with NA
• Remove message about saving factors

readstata13 0.8.1

• Convert non-integer variables to factors (nonint.factors=T)
• Working with strL variables is now a lot faster (thank to Magnus Thor Torfason)
• Fix handling of large datasets
• Some code cleanups

readstata13 0.8

• Implement reading all version prior 13.
• Clean up code.
• Fix a crash when varlables do not match ncols.
• Update leap seconds R code with foreign.

readstata13 0.7.1

• Fix saving of files > 2GB

readstata13 0.7

• read and write Stata 14 files (ver 118)
• Fix save for variables without non-missing values
• Read strings from different file encodings
• Code cleanups

readstata13 0.6.1

• Fix heap overflow

readstata13 0.6

• Various fixes
• Reading stbcal-files

readstata13 0.5-3

• Write dta-files
• Read/write LSF and MSF files
• Source testing and cleaning
• Support for multiple label languages (see http://www.stata.com/manuals13/dlabellanguage.pdf)
• Additional tools for label handling

readstata13 0.4

• Convert.dates from foreign::read.dta()
• Handle different NA values
• Convert strings to system encoding
• Some checks on label assignment

readstata13 0.3

• Reading file from url. Example: read.dta13("http://www.stata-press.com/data/r13/auto.dta")
• Convert.underscore from foreign::read.dta(): converts _ to .
• Missing.type parts from foreign::read.dta(). If TRUE return “missing”
• New replace.strl argument to replace the reference to a STRL string in the data.frame with the actual value

readstata13 0.2

• Read stata characteristics and save them in extension.table attribute
• More robust handling of factor labels
• Set file encoding for all strings and convert them to system encoding
• Fixed compiler warnings

readstata13 0.1

• Reading data files and create a data.frame
• Assign variable names
• Read the new strL strings and save them as attribute
• Convert stata label to factors and save them as attribute
• Read some meta data (timestamp, dataset label, formats,…)

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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