Putting a regression line on a scatterplot
Putting a regression line on a scatterplot in SPSS can be done using the interactive graph in SPSS. The syntax below draws a regression line using reading score to predict writing score. Fuller details are given [http://www.ats.ucla.edu/stat/spss/faq/scatter here]
IGRAPH /X1 = VAR(READ) /Y = VAR(WRITE) /FITLINE METHOD = REGRESSION LINEAR LINE = TOTAL /SCATTER.