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var=array() vs array() query

Started by stevmjon, April 12, 2007, 11:55:18 PM

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stevmjon

to kev
        just a query i've had for a while. the help files don't specify which is best or not between these two methods. is var=array() better, or just array() on its own? is there any difference at all, as both work fine?

method 1:
if array()>number1 and array()<number2
   code here
endif

method 2:
var=array()
if var>number1 and var<number2
   code here
endif

   thanks stevmjon
It's easy to start a program, but harder to finish it...

I think that means i am getting old and get side tracked too easy.

kevin

#1
    Variables have the highest precedence in PlayBASIC  and are thus quickest data type to perform operations upon & between.    

   When in doubt, test it.

PlayBASIC Code: [Select]
 Global TestForMatches=0

Dim Table(1000)

MaxTests=10000

Dim TestName$(100)
Dim results#(10)

Do
Cls 0

inc frames

; Select a point in the array to test
ArrayIndex=rnd(999)


; set test value to with a success range
if TestForMatches=0 then Table(ArrayIndex)=75
; set test value to outside of test range (bellow)
if TestForMatches=1 then Table(ArrayIndex)=5
; set test value to outside of test range (above)
if TestForMatches=2 then Table(ArrayIndex)=200


; ---------------------------
; TEST 1
; ---------------------------

test=0
t=timer()
Count=0
For lp=0 to Maxtests
if Table(ArrayIndex)>45 and Table(ArrayIndex)<100
inc count
endif
next
StoreResult(" Compare Array()>Low and Array(),TEst,T)
inc test


; ---------------------------
; TEST 2
; ---------------------------

t=timer()
Count=0
For lp=0 to Maxtests
ArrayValue=Table(arrayIndex)
if ArrayValue>45 and ArrayValue<100
inc count
endif
next
StoreResult(" Compare Variable>Low and Varaible,TEst,T)
inc test


; ---------------------------
; TEST 3
; ---------------------------

t=timer()
Count=0
For lp=0 to Maxtests
ArrayValue=Table(arrayIndex)
if ArrayValue>45
if ArrayValue<100
inc count
endif
endif
next
StoreResult(" Variable with Separate Low/High compares:",TEst,T)
inc test




; ---------------------------
; TEST 4
; ---------------------------

t=timer()
Count=0
For lp=0 to Maxtests
ArrayValue=Table(arrayIndex)
if ArrayValue<100
if ArrayValue>45
inc count
endif
endif
next
StoreResult(" Variable with Separate High/low compares:",TEst,T)
inc test




; ---------------------------
; TEST 5
; ---------------------------

t=timer()
Count=0
For lp=0 to Maxtests
if Range(Table(arrayIndex),45,100)
inc count
endif
next
StoreResult(" Using PB Range command:",TEst,T)
inc test



; ---------------------------
; Display results and stuff
; ---------------------------


if TestForMatches=0 then M$="Testing For Matches"
if TestForMatches=1 then M$="Testing For Fails (lower than range)"
if TestForMatches=2 then M$="Testing For Fails (greater than range)"

print "TEST MODE:"+M$

text 100,70,"Average results:"

fastestTicks#=100000
FastestIndex=0
For lp=0 to test-1
Ticks#=(results#(lp)/frames)

if FastestTicks#>Ticks#
FastestTicks#=Ticks#
FastestIndex=lp
Endif
text 100,100+(lp*35),TestName$(lp)+str$(Ticks#)
next

ink rgb(255,0,0)
text 100,100+(FastestIndex*35),TestName$(FastestIndex)+str$(FastestTicks#)
ink rgb(255,255,255)


if spacekey()
TestForMatches=mod(TestForMatches+1,3)
ClearArray results#(),0.0
frames=0
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  P.S.  Please try not post questions on the forum that are addressed to me.  This is not the ask Kevin forum, it's the PlayBASIC user forum.