「Table-related commands in STATA」の版間の差分
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!rowspan="3"|tabstat | !rowspan="3"|tabstat | ||
− | |[[File:tabstat_factorABC_by(disease).jpg]] | + | |'''tabstat factorA factorB factorC, by(disease)''' |
+ | [[File:tabstat_factorABC_by(disease).jpg]] | ||
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|- | |- | ||
− | |[[File:tabstat_factorABC_by(disease)_statistic(sum).jpg]] | + | |'''tabstat factorA factorB factorC, by(disease) statistic(sum)''' |
+ | [[File:tabstat_factorABC_by(disease)_statistic(sum).jpg]] | ||
|factorA,B,C are binary variables so summations of values provide the positivities of factorA,B,C | |factorA,B,C are binary variables so summations of values provide the positivities of factorA,B,C | ||
|- | |- | ||
− | |[[File:tabstat_factorABC_by(disease)_statistic(n).jpg]] | + | |'''tabstat factorA factorB factorC, by(disease) statistic(n)''' |
+ | [[File:tabstat_factorABC_by(disease)_statistic(n).jpg]] | ||
|''statistic(n)'' (''statistic(count)'' is the same) only counts observations with real values, which only tell non-missing observations | |''statistic(n)'' (''statistic(count)'' is the same) only counts observations with real values, which only tell non-missing observations | ||
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2023年4月2日 (日) 19:49時点における版
目次
Abbreviations of commands
table | (no abbv.) |
---|---|
tabulate | ta tab |
tabstat | (no abbv.) |
summarize | su |
Differences between table, tabulate, tabstat, summarize
one-way | two-way | options | |
---|---|---|---|
table | table v1 create a one-way table of v1 |
table v1 v2 create a two-way table of v1 |
,statistics( ) |
tabulate | tabulate v1 create a one-way table of v1 |
tabulate v1 v2 create a two-way table with v1 |
,chi2 Pearson's chi-squared test; *only for two-way ,summarize(v3) detailed statistics for v3 |
tabstat | tabstat v1 create a one-way table of v1 |
*no two- or multiple-way table | ,statistics( ) ,by(v3) detailed statistics for each of v3 |
summarize | summarize v1 detailed statistics of v1 |
*no two- or multiple-way summary | ,detail |
† row = transverse direction, column = longitudinal direction
Sample data
Suppose we have such a dataset in STATA.
Where,
id | discrete | :Identification number |
---|---|---|
sex | binary | :Male=0, Female=1 |
data1 | continuous | :Results of a certain test |
factorA, B, C | binary | :Negative=0, Positive=1 |
SES | categorical | :Categories of Socio-Economic Status, divided into four |
disease | binary | :Free from a certain disease=0, Having the disease=1 |
One-way
Summary of sex, a binary variable
table | table sex | Both reports frequency but tabulate is more detailed |
---|---|---|
tabulate | tabulate sex | |
tabstat | tabstat sex | Both reports mean but summarize is more detailed |
summarize | summarize sex |
Summary of data1, a continuous variable
table | table data1 | Both reports frequency of each value, which does not make sense |
---|---|---|
tabulate | tabulate data1 | |
tabstat | tabstat data1 | Both reports mean but summarize is more detailed |
summarize | summarize data1 |
Summary of SES, a categorical variable
table | table SES | Both reports frequency but tabulate is more detailed |
---|---|---|
tabulate | tabulate SES | |
tabstat | tabstat SES | Both reports mean but summarize is more detailed |
summarize | summarize SES |
One-way, multiple
table | *Both do not create one-way multiple table | |
---|---|---|
tabulate | ||
tabstat | tabstat sex data1 SES | Reports mean in row (transverse) direction |
summarize | summarize sex data1 SES | Reports more details in column (longitudinal) direction |
Two-way
Summary of factorA based on sex
table | table sex factorA | Both creates the same table but tabulate is better visualized |
---|---|---|
tabulate | tabulate sex factorA | |
tabstat | tabstat factorA, by(sex) | Both reports mean but summarize is more detailed; needs bysort option before the command |
summarize | bysort sex: summarize factorA |
Summary of sex based on factorA
table | table factorA sex | Both creates the same table but tabulate is better visualized |
---|---|---|
tabulate | tabulate factorA sex | |
tabstat | tabstat sex, by(factorA) | Both reports mean but summarize is more detailed; needs bysort option before the command |
summarize | bysort factorA: summarize sex |
Summary of data1 based on disease
table | *Both do not create a meaningful table for continuous variable | |
---|---|---|
tabulate | ||
tabstat | tabstat data, by(disease) | Both reports mean but summarize is more detailed; needs bysort option before the command |
summarize | bysort disease: summarize data1 |
Two-way with proportions
Summary of factorA based on sex with proportions
table | table sex factorA, statistic(percent) | This calculates proportions of cells compared to the whole without showing raw values |
---|---|---|
table sex factorA, statistic(percent, across(sex)) | This calculates proportions in column (longitudinal) directions without showing raw values | |
tale sex factorA, statistic(percent, across(factorA)) | This calculates proportions in row (transverse) directions without showing raw values | |
tabulate | tabulate sex factorA, column | This calculates proportions in column (longitudinal) directions |
tabulate sex factorA, row | This calculates proportions in row (transverse) directions |
Two-way, multiple
Summary of factorA, factorB, factorC based on disease
tabstat | tabstat factorA factorB factorC, by(disease) | |
---|---|---|
tabstat factorA factorB factorC, by(disease) statistic(sum) | factorA,B,C are binary variables so summations of values provide the positivities of factorA,B,C | |
tabstat factorA factorB factorC, by(disease) statistic(n) | statistic(n) (statistic(count) is the same) only counts observations with real values, which only tell non-missing observations |
Summary of factorA, factorB, factorC based on SES
Two-way of binary/categorical plus summary of continuous
Summary of data1 based on disease and SES
tabulate | This tells means, SDs and frequencies of a continuous variable divided in two-way of binary/categorical variables |
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