Stat > Reliability/Survival > Distribution
Analysis (Right Censoring) > Distribution ID Plot

Use Distribution ID Plot (Right Censoring) to determine which distribution
best fits your data by comparing how closely the plot points lie to the
best-fit lines of a probability
plot.

Minitab also provides two goodness-of-fit
measures to help you assess how the distribution fits your data:

· Anderson-Darling
for the least squares and maximum likelihood estimation methods

· Pearson
correlation coefficient for the least squares estimation method

You can display up to 50 samples on each plot. All the samples display
on a single plot, with different colors and symbols.

## Dialog box items

Variables: Enter
the columns of failure times. You can enter up to 50 columns (50 different
samples).

Frequency columns
(optional): Enter the columns of frequency
data.

By variable:
If all of the samples are stacked in one column, check By variable, then enter a column of grouping
indicators.

Use all distributions:
Choose to have Minitab fit all eleven distributions.

Specify: Choose
to fit up to four distributions.

Distribution
1: Check and choose one of eleven distributions: smallest extreme value,
Weibull (default),
3-parameter Weibull,
exponential,
2-parameter exponential,
normal,
lognormal,
3-parameter lognormal,
logistic,
loglogistic,
or 3 parameter loglogistic.

Distribution
2: Check and choose one of eleven distributions: smallest
extreme value, Weibull, 3-parameter Weibull, exponential, 2-parameter
exponential, normal, lognormal (default), 3-parameter lognormal, logistic,
loglogistic, or 3-parameter loglogistic.

Distribution
3: Check and choose one of eleven distributions: smallest
extreme value, Weibull, 3-parameter Weibull, exponential (default), 2-parameter
exponential, normal, lognormal, 3-parameter lognormal, logistic, loglogistic,
or 3-parameter loglogistic.

Distribution
4: Check and choose one of eleven distributions: smallest
extreme value, Weibull, 3-parameter Weibull, exponential, 2-parameter
exponential, normal (default), lognormal, 3-parameter lognormal, logistic,
loglogistic, or 3-parameter loglogistic.

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