Class Meeting 04

Class Meeting 04 - CHEN 3010 Applied Data Analysis Class...

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1 CHEN 3010 Applied Data Analysis Class Meeting #4 Sept 2 nd , 2004 Topics Graphical presentation Box plots Time Series plots Scatter (XY) plots Reading for Tuesday: pages 47-59 Homework #2 due next Thursday (posted on the course web site) Multivariate Data Sample Correlation Coefficient
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2 Sample Statistics central value sample mean (average), median, mode mEstimator dispersion sample standard deviation, S range MAD others skewness kurtosis most frequently occurring value robust estimator (removes effects of outliers) X X median absolute deviation shows asymmetry of distribution shows peakedness/flatness of distribution (compared to normal distribution)
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Additional estimators of sample statistics MAD -- estimate of std.dev. of data insensitive to outliers mEst – m-estimator, mean estimate insensitive to outliers - median absolute deviation - compute MEDIAN of series - compute absolute value of deviations from MEDIAN - compute MEDIAN of absolute deviations / 0.6745 - guess m value, use series MEDIAN
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This note was uploaded on 10/11/2011 for the course CHEN 3010 taught by Professor Kompala,dh during the Spring '08 term at Colorado.

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Class Meeting 04 - CHEN 3010 Applied Data Analysis Class...

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