allstats

Posted by Robert Bemis, October 30, 2009

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Bob's pick this week is Allstats by Francisco de Castro.

The file is simple enough. Given a data set,

x = randn(1000,1);
hist(x,100)

allstats returns a list of statistical values.

myStats = allstats(x)

myStats = 
      min: -3.1289
      max: 2.9371
     mean: -0.06815
      std: 1.0019
     mode: -3.1289
     q2p5: -1.9519
       q5: -1.7128
      q25: -0.73464
      q50: -0.072006
      q75: 0.55077
      q95: 1.6351
    q97p5: 1.8844

The mean should be close to zero,

myStats.mean

ans =
     -0.06815

and the standard deviation should be close to one.

myStats.std

ans =
       1.0019

How convenient.

As it turns out, this month the File Exchange recently celebrated a major milestone. Allstats has the honor of being the official 10,000-th submission. Congratulations to Francisco and every contributor who made this possible! Growth of the File Exchange has been absolutely amazing.