I could not calculate 97.5 percentile on SPSS with using frequency option.

I know that SPSS has five different options for calculating percentiles.

I want to know how can I calculate percentile with another 4 options.

If I want to use AEMPIRICAL method to calculate percentile on SPSS what should I start with?

In the FREQUENCIES procedure you can specify the percentiles you want in the Statistics subdialog box or in syntax. E.g.,

FREQUENCIES VARIABLES=educ

/PERCENTILES=97.5

/STATISTICS=MEAN.

You don't have a choice of the calculation method there, but if you use the EXAMINE procedure (Analyze > Descriptive Statistics > Explore), you can specify both the percentiles and the method. The percentiles cannot be specified in the dialog box, but you can do it by pasting the syntax and adding what you want. For example,

EXAMINE VARIABLES=salary BY educ

/PLOT NONE

/PERCENTILES(5,10,25,50,75,90,95, 97.5) HAVERAGE.

You can change HAVERAGE to AEMPERICAL or any of the other methods.