Dear all
I have a dataset (in text format,delimited by tab) which have 100 variables (say, var0-var99) and more than 100,000 observations. I want to do the following:
1. for variable var0-var49, I want to add "00" in front of each data (for example, "1" would become "001")
2. for variable var50-var99, I want to add an underscore _ in front of each data (for example, "1" would become "_1")
How should I write the script?
I have a dataset (in text format,delimited by tab) which have 100 variables (say, var0-var99) and more than 100,000 observations. I want to do the following:
1. for variable var0-var49, I want to add "00" in front of each data (for example, "1" would become "001")
2. for variable var50-var99, I want to add an underscore _ in front of each data (for example, "1" would become "_1")
How should I write the script?