Technologies Humanware Inc. APBT320 Manuel D’Utilisation
BrailleNote Apex QT User Guide
8-201
8.4.1
Entering Data.
To perform statistical operations, KeyPlus needs a set of numbers to operate upon. To avoid
confusing these numbers with other numbers in KeyPlus, these numbers will be referred to as
"values", and the set of values KeyPlus operates on is called "the data set." The number of times a
value occurs is called the "frequency" of the value. When you put a value and a frequency together,
you get a data item. Note that the maximum number of data items allowed in a data set is 5000.
confusing these numbers with other numbers in KeyPlus, these numbers will be referred to as
"values", and the set of values KeyPlus operates on is called "the data set." The number of times a
value occurs is called the "frequency" of the value. When you put a value and a frequency together,
you get a data item. Note that the maximum number of data items allowed in a data set is 5000.
Once you have entered a set of values, they remain in KeyPlus until you either purposefully clear
the data set, or load another data set in its place.
the data set, or load another data set in its place.
In order to add each individual value one at a time, you will need to turn Data Entry on. Data Entry
is turned on using the first item in the Data Set Menu. To enter the Data Set Menu, press
CONTROL with S. Move to the first menu item by pressing SPACE and KeyPlus will display:
"Data entry is off. Turn it on." To turn it on, press ENTER. KeyPlus will display:
"Data entry on, N is 0." "N is 0" means there are currently no values in the data set. You are now
back in KeyPlus with the Data Entry on. When you press ENTER after typing a number or
performing a calculation, the number or result of the calculation will be added to the data set.
Alternatively, you can toggle data entry on/off using the hotkey, READ with D.
is turned on using the first item in the Data Set Menu. To enter the Data Set Menu, press
CONTROL with S. Move to the first menu item by pressing SPACE and KeyPlus will display:
"Data entry is off. Turn it on." To turn it on, press ENTER. KeyPlus will display:
"Data entry on, N is 0." "N is 0" means there are currently no values in the data set. You are now
back in KeyPlus with the Data Entry on. When you press ENTER after typing a number or
performing a calculation, the number or result of the calculation will be added to the data set.
Alternatively, you can toggle data entry on/off using the hotkey, READ with D.
While Data Entry is on, “N is …” is always displayedafter the calculator result. This tells you the
total number of values in the data set and reminds you that Data Entry is on. If at anytime you want
to check that the Data Entry Mode is on or off, press SHIFT with I. KeyPlus will display:
"data entry is on, N is (xx)" or "data entry is off."
total number of values in the data set and reminds you that Data Entry is on. If at anytime you want
to check that the Data Entry Mode is on or off, press SHIFT with I. KeyPlus will display:
"data entry is on, N is (xx)" or "data entry is off."
Once you have finished entering values or if you need to use the calculator for another purpose, turn
Data Entry off again. To do this, enter the Data Set Menu and move onto the first item. You will
notice that it is now
Data Entry off again. To do this, enter the Data Set Menu and move onto the first item. You will
notice that it is now
"Data entry is on. Turn it off." To turn it off, press ENTER and you will be
returned to the Scientific Calculator.
There are 4 ways to type individual values into the data set:
1. Entering a single number:
You can type numbers, for example, type 73 and press ENTER. KeyPlus displays:
"seven three equals seventy three", and then pauses before "N is 1", followed by
"73 N is 1" is displayed. This shows that the number 73 has been added to the data set and it
now contains one value.
"seven three equals seventy three", and then pauses before "N is 1", followed by
"73 N is 1" is displayed. This shows that the number 73 has been added to the data set and it
now contains one value.
2. Entering the result of a calculation:
You can enter the result of a calculation directly into the data set. For example, type 3 * 6 and
press ENTER. KeyPlus displays:
"three times six equals eighteen", and then pauses before
"N is 2", followed by "18 N is 2" is displayed. This shows that the number 18 has been added
to the data set, which now contains 2 values.
to the data set, which now contains 2 values.
3. Entering a number and how often it occurs: