Basic principles of graphing data

The Basic Principles of Data Compression

Compression is the process of encoding data more efficiently to achieve a reduction in file size. One type of compression available is referred to as lossless compression. This means the compressed file will be restored exactly to its original state with no loss of data during the decompression process. This is essential to data compression as the file would be corrupted and unusable should dat...

Graphing One Dimensional Numeric Data

A strip plot graphs one dimensional data by displaying each sample point as a point on a one dimensional axis. The main difficulties with this technique is (i) when several samples have identical values they will be printed on top of each other, and (ii) in the case of a large sample the graph will become overly crowded and less informative. The two ways to alleviate these difficulties are: (a)...

Speaking Stata: Graphing categorical and compositional data

Abstract. A variety of graphs have been devised for categorical and compositional data, ranging from widely familiar to more unusual displays. Both official Stata commands and user-written programs are available. After a stacking trick for binary responses is explained, bar charts and related displays for cross-tabulations are discussed in detail. Tips and tricks are introduced for plotting cum...

Basic principles of TLC

Products for thin layer chromatography Ready-to-use layers for TLC Summary of MN ready-to-use layers for TLC 263 – 265 TLC ready-to-use layers with standard silica 266 – 269 TLC ready-to-use layers with concentrating zone 269 HPTLC ready-to-use layers with nano silica 269 – 271 Nano plates with extremely thin silica layer 271 TLC and HPTLC plates with modified silica layers 272 – 277 HPTLC read...

Basic principles of cryopreservation