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Data management
2020/10/08
Excel: Why using Microsoft’s tool caused Covid-19 results to be lost
2020/04/30
Reading text files
2020/03/02
Blog post: Smart quotes, em dashes, and en dashes
2020/01/07
Blog post: Identifying and manipulating non-breaking spaces
2019/04/18
Recommendation: Separating Unique and Duplicated Observations Using PROC SORT in SAS 9.3 and Newer Versions
2019/04/03
Recommendation: When life gives you coloured cells, make categories
2018/12/29
Recommendation: 9 Reasons Excel Users Should Consider Learning Programming
2018/07/23
Recommendation: Use of Electronic Health Record Data in Clinical Investigations
2018/04/19
Recommendation: A crummy drop-down menu appeared to kill dozens of mothers in Texas.
2018/04/09
Recommendation: ISO 8601
2018/04/03
Recommendation: EuSpRIG horror stories.
2018/04/03
Recommendation: The Reinhart-Rogoff error – or how not to Excel at economics
2018/02/24
Recommendation: Data dictionaries
2017/09/28
Recommendation: OpenRefine: A free, open source, powerful tool for working with messy data
2017/09/05
Recommendation: Good enough practices in scientific computing
2016/09/01
Recommendation: Organizing data in spreadsheets
2016/06/15
Recommendation: Handling date-times in R
2014/05/31
PMean: What should go into a data codebook
2007/02/14
Watch out for ambiguous data
2006/06/20
Auditing for data entry errors
2006/05/23
Another regular expression tip
2006/05/23
Lost files
2006/05/18
Using regular expressions to insert line breaks
2006/01/31
More lessons learned the hard way
2005/11/25
Hard learned lessons
2005/11/02
Non-destructive data editing
2005/08/16
Another disaster averted
2005/07/28
Moving R objects
2005/07/21
More on regular expressions
2005/06/27
Dumping data from R to a text file
2005/05/24
Importing value labels from Access into SPSS
2005/05/16
A disaster averted
2005/05/10
String manipulations in R
2005/03/15
Digitizing a graph
2003/02/03
Coding race/ethnicity
2001/01/24
Loading ODBC drivers from the Microsoft Data Access Pack
2000/01/28
Exporting SPSS graphs and tables.
2000/01/28
Spreadsheet or Database?
1999/09/20
Importing spreadsheet data into SPSS
1999/09/18
Documenting your SPSS data sets
1999/09/18
Inputting a two-by-two table into SPSS
1999/09/18
Modifying SPSS data
1999/09/03
General guide to data entry
1999/08/18
Date calculations in SPSS
1999/08/18
Importing database files into SPSS
1999/08/18
Raynald’s SPSS Tools
1999/01/15
Merging files in SPSS