Example output reports:
Foods analysis
Thu Aug 29 09:52:16 1996 DVEG Page 1
C-SIDE
Software for Intake Distribution Estimation
Version 0.99, August 29, 1996
Department of Statistics and
Center for Agricultural and Rural Development
Iowa State University
Copyright (c) 1996 Iowa State University
Center for Survey Statistics and Methodology. All Rights Reserved.
============================================================
PROBLEM IDENTIFICATION
Data file is /local/home/username/food85.txt
Variables used in the analysis:
Field Type Name
1st Individual ID INDIV
2nd Class, obs DOW
3rd Class, obs SEQ
4th Food DVEG
Variable used to determine sample day: SEQ
Variable used to tie observations to individuals: INDIV
Fraction of mean used to adjust for zero values: 0.0001
Minimum power tested for best transformation: 1 / 10
Maximum number of join points allowed: 18
Number of observations in linear end segments: 2
Type I error rate used in Anderson-Darling tests: 0.1
============================================================
Food DVEG (not weighted).
SUMMARY STATISTICS
All Positive
Intakes Intakes
Number of observations 2972 287
Number of individuals 743 235
Proportion of respondents who consumed food on:
0 days 0.68371
1 day 0.25168
2 days 0.05922
3 days 0.00538
4 days 0.00000
T-test for correlation between intake and
probability of consumption 0.068974
Thu Aug 29 09:52:16 1996 DVEG Page 2
ESTIMATED CONSUMPTION PROBABILITY DISTRIBUTION
Value Mass
0.00 0.14432 ***************
0.02 0.05903 ******
0.04 0.05111 ******
0.06 0.05834 ******
0.08 0.07886 ********
0.10 0.11254 ************
0.12 0.14915 ***************
0.14 0.16005 *****************
0.16 0.11995 ************
0.18 0.05351 ******
0.20 0.01199 **
0.22 0.00113 *
0.24 0.00004 *
0.26 0.00000
0.28 0.00000
0.30 0.00000
0.32 0.00000
0.34 0.00000
0.36 0.00000
0.38 0.00000
0.40 0.00000
0.42 0.00000
0.44 0.00000
0.46 0.00000
0.48 0.00000
0.50 0.00000
0.52 0.00000
0.54 0.00000
0.56 0.00000
0.58 0.00000
0.60 0.00000
0.62 0.00000
0.64 0.00000
0.66 0.00000
0.68 0.00000
0.70 0.00000
0.72 0.00000
0.74 0.00000
0.76 0.00000
0.78 0.00000
0.80 0.00000
0.82 0.00000
0.84 0.00000
0.86 0.00000
0.88 0.00000
0.90 0.00000
0.92 0.00000
0.94 0.00000
0.96 0.00000
0.98 0.00000
1.00 0.00000
Thu Aug 29 09:52:16 1996 DVEG Page 3
ESTIMATING USUAL INTAKE DISTRIBUTION FOR CONSUMPTION DAYS...
PRELIMINARY ADJUSTMENTS
Transformation is power of 1 / 5, scale factor of 10e0.
The maximum number of observations per individual is 4.
Ratio adjustment variables are:
SEQ, and DOW.
Data are adjusted to Day 1 variance after ratio adjustment
and in transformed scale. Original scale standard
deviations of adjusted data for each sample day are:
Day 1 113.622
Day 2 116.63
Day 3 80.921
Day 4 99.8928
DESCRIPTIVE STATISTICS Original Data Adjusted Data
Total number of observations 287 287
Total number of individuals 235 235
Mean 103.97 81.698
Minimum 0.91 0.19034
Maximum 474 460.58
NORMALITY TRANSFORMATION
Transformation is power of 1 / 4.5, scale factor of 10e0.
Normality test hypothesis not rejected at 4 join points.
The Anderson-Darling test statistic of 0.124 was less
than the 10% critical value of 0.656
NORMALITY TESTS FOR TRANSFORMED DATA
ADS 5% Critical Value 0.787
ADS for Observed Intakes 0.124
ADS for Day 1 Intakes (64 observations) 0.495
ADS for Day 2 Intakes (63 observations) 0.329
ADS for Day 3 Intakes (76 observations) 1.11
ADS for Day 4 Intakes (84 observations) 0.326
ADS for Individual Mean Intakes 0.283
VARIANCE COMPONENTS FOR TRANSFORMED DATA
Number of individuals 235
Number of individuals with more than 1 day 48
Mean of individual means -0.00386
Variance of transformed observed intakes 1.0007
Variance of usual intakes 0.33850
Variance of measurement error 0.66967
Measurement error degrees of freedom 49
Diagnostics for heterogeneous individual variances
T-test for presence of heterogeneous variances 0.33789
Test for linear relationship between
individual mean and standard deviation
Slope of std dev regressed on mean 0.030556
T-test for slope = 0 0.36056
Pr > |t| (on 46 d.f.) 0.72008
Thu Aug 29 09:52:16 1996 DVEG Page 4
ESTIMATED MOMENTS FOR USUAL INTAKES IN ORIGINAL SCALE
CONSUMPTION DAYS ALL DAYS ALL DAYS
CONSUMERS ONLY ENTIRE POPULATION
Mean 81.506 9.1387 7.8198
Variance 2186.8 45.278 49.057
Std. Dev. 46.764 6.7289 7.0041
Percent nonconsumers 14.4
Percent consumers 85.6
ESTIMATED PERCENTILE VALUES FOR USUAL INTAKES
Consumption All Days All Days
Days Consumers Entire Pop
Probability Percentile Percentile Percentile
0.010 14. 0.7 0.0
0.025 18. 1.0 0.0
0.050 23. 1.4 0.0
0.075 27. 1.8 0.0
0.100 31. 2.1 0.0
0.125 34. 2.5 0.0
0.150 36. 2.8 0.6
0.175 39. 3.1 1.2
0.200 42. 3.5 1.6
0.225 44. 3.8 2.0
0.250 47. 4.1 2.5
0.275 49. 4.5 2.9
0.300 52. 4.8 3.2
0.325 54. 5.1 3.6
0.350 57. 5.4 4.0
0.375 59. 5.8 4.4
0.400 62. 6.1 4.8
0.425 64. 6.5 5.2
0.450 67. 6.8 5.5
0.475 69. 7.2 5.9
0.500 72. 7.6 6.3
0.525 75. 8.0 6.7
0.550 78. 8.4 7.2
0.575 81. 8.8 7.6
0.600 84. 9.2 8.1
0.625 87. 9.7 8.6
0.650 91. 10.2 9.1
0.675 94. 10.7 9.6
0.700 98. 11.2 10.2
0.725 102. 11.8 10.8
0.750 107. 12.5 11.4
0.775 111. 13.2 12.1
0.800 117. 13.9 12.9
0.825 122. 14.8 13.8
0.850 129. 15.8 14.8
0.875 136. 16.9 15.9
0.900 145. 18.2 17.3
0.925 156. 20.0 19.0
0.950 172. 22.3 21.4
0.975 196. 26.3 25.4
0.990 226. 31.5 30.6
Thu Aug 29 09:52:16 1996 DVEG Page 5
CDF Values for Usual Intakes
Consumption Days
Value Prob. Below Prob. Above
10 0.003722 0.9963
100 0.7114 0.2886
All Days - Consumers Only
Value Prob. Below Prob. Above
10 0.6415 0.3585
100 1.000 0.000
All Days - Entire Population
Value Prob. Below Prob. Above
10 0.6932 0.3068
100 1.000 0.000
Copyright 2002-2005, Iowa State University, all rights reserved
URL: http://cssm.iastate.edu/software/foods.html
