HP 48g Graphing Calculator - Manual (Page 273)

21
Statistic^
Dñcí
Dala
Entering Statistical Data
Data can be accumulated on the HP 48 in two different kinds
of objects: arrays and lists. In general, lists are best-suited for
one-variable statistics, arrays for multi-variable statistics. Arrays may
only contain numerical data; lists may contain any kind of data.
The built-in STAT application always uses arrays—specifically, it uses
the data currently stored in the array variable named EDAT.
However, to apply programmed statistical functions other t.han those
built into the STAT application, you may find lists are a more flexible
object type than arrays.
21
To enter
statistical
data as a list:
1. Press fi^lTT) to begin the list.
2. Type each datum followed by fSPC~). Press fENTER ) after you’ve
typed the final datum.
3. Optional: Store the data list in a named variable in order to save
it for later use. Be careful not to store the list in an HP reserved
variable, such as EDAT.
To
enter statistical data directly into
E D A T :
1. Press < to open the SI HGL..E--viiF< I FlBLE
S'iTi'TISTICS form. (Actually, you may use any of the STAT
application input forms.)
2. Optional: If there is already data in the SDfiTi: field either delete
it (press ( del
1 OK ) or save the data by storing it in a variable
(see next procedure) first and then deleting it.
3. With the highlight on the field, press i£D
MatrixWriter (you may need to press fNXT ) first).
to begin the
Statistics and Data Analysis 21-1