NOTE 'Welcome to MYSTAT, a personal version of SYSTAT. MYSTAT offers full-screen spreadsheet data entry, 32,000 cases, 50 variables, unlimited transformations, basic statistics, exploratory and analytic graphics, correlations, multiple regression, polynomial regression, residual analysis, regression diagnostics, nonparametrics, cross-tabulations, chi-square and association statistics, multi-way factorial and unequal-n analysis of variance, and analysis of covariance.'
NOTE 'MYSTAT is a statistical package produced by SYSTAT Inc., a leading developer of technical microcomputer software. Every procedure in MYSTAT produces identical results to SYSTAT. The only difference is in the number of routines offered. The following demonstration will show you a few of the capabilities of this powerful statistics package.'
NOTE 'First, we will enter data. The MYSTAT editor works like a spreadsheet. You canenter values on any number of cases, use the cursor keys to change cells, and perform simple or complex transformations. Watch how the cursor enters, alters,and transforms data.'
EDIT
Q
FORMAT 1
Q
'CITY$
'STATE$
'POP
'RAINFALL
W
'New York
'NY
7164742
57.03
'Los Angeles
'CA
3096721
7.81
'Chicago
'IL
2992472
34.00
'Dallas
'TX
974234
33.89
'Phoenix
'AZ
853266
14.91
'Miami
'FL
346865
60.02
'Washington
'DC
638432
37.73
'Paris
'France
E
E
E
E
E
E
D
D
X
X
X
X
X
X
S
S
S
S
'Oops!
D
D
E
E
E
E
E
E
S
S
X
X
X
X
X
X
S
'Kansas City
'MO
448159
38.77
Q
LET LOGPOP=LOG(POP)
SAVE CITIES / SINGLE
QU
FORMAT 3
NOTE 'To analyze the data in this file, we USE the file. There is no need to redefinevariables or formats. Just type: USE CITIES'
USE CITIES
NOTE 'Here is a histogram of the logarithm of POPULATION (LOGPOP). Just type: HIST LOGPOP'
HIST LOGPOP
NOTE 'Here is a box plot of RAINFALL. Just type: BOX RAINFALL'
BOX RAINFALL
NOTE 'Here is a stem-and-leaf diagram of RAINFALL. Just type: STEM RAINFALL'
STEM RAINFALL
NOTE 'Here is a scatterplot of LOGPOP against RAINFALL, with the first letter of CITY as the labeling character. Just type: PLOT LOGPOP*RAINFALL / SYMBOL=CITY$'
PLOT LOGPOP*RAINFALL / SYMBOL=CITY$
NOTE 'Here are the basic statistics on the variables in the file. Just type: STATS'
STATS
NOTE 'Here is the Pearson correlation of RAINFALL with LOGPOP. Just type PEARSON RAINFALL,LOGPOP'
PEARSON RAINFALL,LOGPOP
NOTE 'Here is a regression of LOGPOP on RAINFALL. Just type: MODEL LOGPOP = CONSTANT + RAINFALL ESTIMATE'
MODEL LOGPOP = CONSTANT + RAINFALL
ESTIMATE
NOTE 'These results are a washout. The data are all wet. You have seen only a few of the capabilities of MYSTAT. And SYSTAT contains much, much more. Here is a summary of the differences.'
HELP SYSTAT
NOTE 'Now that you have seen a few statistics, try some more yourself. Type HELP for assistance with any command. Type INTRO for a copy of the MYSTAT user manual.'