TechnoBuzz

A Techno Blog, mainly about Java

SAS data manipulations

SAS Transpose : “So many times we need to take our data and turn it around. One of the reasons that this is done is that it
is more efficient to store your data in a vertical format and processing the data is easier in a horizontal
format”

  • Changes the variables (columns)  into observations (rows)
  • eliminates the need to write a complex data step
  • Horizontal data has many variables with few rows. There will be empty cells in the data if there are any missing values

SAS Summary/SAS Means : In SAS, you can use the UNIVARIATE, MEANS, or SUMMARY procedure to obtain summary statistics such as the median, skewness, and kurtosis

Median:
By definition, a median is a statistical term identifying a piece of data (number) that divides numerically ordered data into two equal halves. In easier terms, the median is the middle piece of data when those data are placed in numerical order.

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June 15, 2012 - Posted by | Uncategorized

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