GEOG 2GI3 Lecture Notes - Lecture 4: Floating Point, Binary Large Object, Gnu Debugger
18 May 2018
School
Department
Course
Professor
!"#$%#&'(#$#')*&#$*'$+',*+-*$).'#/('0"#$%#&'1*#$2)*0
○
3$$)%42$*'(*05)%4*'56#)#5$*)%0$%50'+1'0"#$%#&'1*#$2)*0
○
78!'%/9+&9*0'4+$6'0"#$%#&'#/('#$$)%42$*'(#$#
:
;*5$+)<'56#)#5$*)%0$%50'+1'"+%/$0='&%/*0'#/('"+&.,+/0'>?'+)'-+)*'"*)'+4@*5$
:
A#0$*)<'56#)#5$*)%0$%50'+1'"%B*&0'>+/&.'?'"*)'"%B*&C
:
3$$)%42$*0
D#$*,+)%*0E'0%-"&*0$'1+)-'+1'-*#02)*-*/$
○
F%/,'+40*)9#$%+/'%/$+'+/*'+1'$G+'+)'-+)*'-2$2#&&.'*B5&20%9*'#/('
*B6#20$%9*'5#$*,+)%*0
○
D+(%/,'(+*0'/+$'$*&&'20'#/.$6%/,'#4+2$'$6*'H2#/$%$.'+1'#$$)%42$*'4*%/,'
-*#02)*(
○
I+-%/#&
:
?='J='K
§
L%,6='-*(%2-='&+G
§
M4@*5$0'"*('%/')#/N*('+)(*)
○
3O'4='#P4
§
D+(*'A*(
§
M)(*)'%0'-*#/%/,12&='-#,/%$2(*'4*$G**/'$6*'+4@*5$0'%0'/+$E'#9*)#,*'
4*$G**/'5#0*0'/+$'"+00%4&*'>/+$')*")*0*/$#$%9*E'-+(*'+)'-*(%#/C
○
M)(%/#&
:
Q!$*""%/,Q'(%0$#/5*E'9#)%#/5*0'4#0*('+/'&+5#$%+/
§
M4@*5$0'+)(*)*('#/('$6*'-#,/%$2(*'4*$G**/'$6*-'%0'-*#/%/,12&'>$)2*'
/2-4*)0C
○
3R4
§
L+G'-256'-+)*'+)'&*00'$6*'#$$)%42$*'4*%/,'-*#02)*('%0'"+00*00*('4.'+/*'
+4@*5$'$6#/'#/+$6*)
○
8/$*)9#&
:
F*)5*/$#,*'(#$#E'$."%5#&&.'4+2/('>SR?SSTC
§
D#/'02)"#00'?SS'%/'0+-*'5#0*0
§
M4@*5$0'#)*'+)(*)*('#/('-#,/%$2(*'4*$G**/'$6*-'%0'-*#/%/,12&
○
#U4
§
L+G'-#/. times #0'-256'+/*'+4@*5$'9#)%*0'1)+-'#/+$6*)'+/'#'"#)$%52&#)'
#$$)%42$*
○
A#$%+
:
A#$%+'05#&*'(#$#'6#9*'#'/#$2)#&'+)'/+/R#)4%$)#).'V*)+'"+%/$'$6#$'%/(%5#$*0'
$6*'")*0*/5*'+)'#40*/5*'+1'0+-*$6%/,
○
N*.'4*$G**/'(%0$%/,2%06%/,'%/$*)9#&'#/(')#$%+W'+)%,%/'+)'V*)+'"+%/$:
F+00%4&*'$+'5+/9*)$'%/$*)9#&'#/(')#$%+'05#&*'9#)%#4&*0'$+'9#)%#4&*0'+1'&+G*)'+)(*):
X*9*&'+1'Y*#02)*-*/$
D#/'5+-*'%/'-#/.'1+)-#$0='42$'%/'3)578!'$6*.'6#9*'5+--+/'#""*#)#/5*:
Z#4&*0'#/('[%*&(0'%/'3)578!
(\3!]:
:8I[M'1%&*0
:]B5*&' !")*#(06**$0
:Y%5)+0+1$'355*00
:7*+(#$#4#0*
○^$B$'#/('^509
:3!D88'$*B$'1%&*0'>$#4'+)'5+--#'(*&%-%$*(
!+2)5*0'+1'Z#4&*0
!$+)*0'#$$)%42$*0'+1'-#"'1*#$2)*0
○
300+5%#$*('G%$6'0"#$%#&'(#$#'&#.*)
○
L#0'0"*5%#&'1%*&(0'1+)'0"#$%#&'%/1+)-#$%+/
○
[*#$2)*'#$$)%42$*'$#4&*'>^,(4C:
○!$+)*0'#$$)%42$*0'+1'-#"'1*#$2)*0
○300+5%#$*('G%$6'0"#$%#&'(#$#'&#.*)
○!"*5%#&'1%*&(0'1+)'0"#$%#&'%/1+)-#$%+/
[*#$2)*'#$$)%42$*'$#4&*'>^06"C:
!$+)*0'$#42&#)'(#$#
○
I+$'#00+5%#$*('G%$6'0"#$%#&'(#$#
○
!$#/(#&+/*'$#4&*:
Z."*0'+1'Z#4&*0
]9*).'1%*&('6#0'0"*5%1%5'")+"*)$.:
Z+$#&'56#)#5$*)0'#'$*B$'1%*&('5#/'0$+)*'>%/5&2(%/,'0"#5*0'#/('"2/5$2#$%+/
○
X*/,$6:
Z+$#&'/2-4*)'+1'(%,%$0'#'/2-*)%5'1%*&('5#/'0$+)*
○
F)*5%0%+/:
I2-4*)'+1'(*5%-#&'"*0
○
!5#&*:
[%*&('F)+"*)$%*0
L#9*'0"*5%1%5'$."*0'#9#%&*='$6#$'-20$'4*'(*1%/*('4*1+)*'20*:
M/5*'(*1%/*(='5#//+$'4*'56#/,*(:
I+'-+)*'$6#/'?S'56#)#5$*)0'1+)'(\3!]
○
M/&.'&*$$*)0'#/('/2-4*)0
○
!$#)$'G%$6'#'&*$$*)'#/('5#//+$'5+/$#%/'0"#5*0
○
Y20$'4*'2/%H2*'G%$6%/'$6*'0#-*'$#4&*
○
D#/'")+9%(*'#/'#&%#0'1+)'#'1%*&('/#-*
○
I#-%/,')2&*0:
_#$#'Z."*0
Z."* _*05)%"$%+/ ]B#-"&*
!6+)$ 8/$*,*)0'0$+)*('#0'`R4.$*'4%/#).'/2-4*)0 I2-4*)0''1)+-'RKJ'aba'$+'c
KJ'aba'>/+'(*5%-#&0C
X+/, 8/$*,*)0'0$+)*('#0'?SR4.$*'4%/#).'/2-4*)0' cURJ^?`a`dKb`d*cSe
[&+#$ [&+#$%/,'"+%/$'9#&2*0'G%$6'd'0%,/%1%5#/$'(%,%$0'%/'
$6*'-#/$%00#'>KJR4%$C
?^JdeKdf?*?J
_+24&* _+24&*R")*5%0%+/'1&+#$%/,'"+%/$'9#&2*0'G%$6'?b'
0%,/%1%5#/$'(%,%$0'%/'$6*'-#/$%00#'>b`R4%$C
?^???????????????*?K
Z*B$ 3&"6#/2-*)%5'0$)%/,0 Q?JdS'Y#%/'!$)**$'gQ
_#$* _#$*'1+)-#$ SaU?SUJSSd
\XM\ \%/#).'&#),*'+4@*5$E'#/.'5+-"&*B'4%/#).'(#$#'
%/5&2(%/,'%-#,*0='(+52-*/$0='*$5^'
3$$)%42$*'X*9*& _#$#'Z."*
I+-%/#& !$)%/,='8/$*,*)
M)(%/#& !$)%/,='8/$*,*)
8/$*)9#& A*#&'I2-4*)
A#$%+ A*#&'I2-4*)
_#$#4#0*'%0'#'5+&&*5$%+/'+1'%/$*))*&#$*(' $#4&*0'%/'(%,%$#&'1+)-#$:
Y+0$'G%(*&.'20*('(#$#4#0*'-+(*&'%/'%/(20$).
○
A*")*0*/$0'(#$#4#0*'#0'#'5+&&*5$%+/'+1'$#4&*0'+)'0%-"&*'1%&*0='G6%56'5#/'4*'
@+%/*('$+'+/*'#/+$6*)
○
3&$6+2,6'$6*)*'#)*'0*9*)#&'$."*0='78!'9*/(+)0'20*')*&#$%+/#&'-+(*&:
]#56'5+&2-/'+)'1%*&(')*")*0*/$0'#$$)%42$*:
]#56')+G'+1'#$$)%42$*'9#&2*0')*")*0*/$0:
A*&#$%+/#&'Y+(*&
M/*'$+'+/*<'+/*'$2"&*'%/'$#4&*'3'%0')*&#$*('$+'+/*'$2"&*'%/'$#4&*'\'#/('9%5*'9*)0#:
M/*'$+'-#/.<'$2"&*'%/'$#4&*'3')*&#$*('$+'-#/.'%/'$#4&*'\='$2"&*'%/'$#4&*'\')*&#$*('
$+'+/&.'+/*'%/'$#4&*'3
:
Y#/.'$+'+/*<'$2"&*'%/'3')*&#$*('$+'+/&.'+/*'$2"&*'%/'\'42$'$2"&*'%/'\')*&#$*('$+'
-#/.'$2"&*0'%/'3'>5#/h$'@+%/'$#4&*='-20$')*&#$*C
:
Y#/.'$+'-#/.<'$2"&*'%/'3'5#/'4*')*&#$*('$+'-#/.'$2"&*0'%/'\'#/('$2"&*'%/'\'5#/'
4*')*&#$*('$+'-#/.'$2"&*0'%/'3'>5#/h$'@+%/'$#4&*='-20$')*&#$*C
:
A*&#$%+/06%"0
i+%/'$#4&*0'+/'5+--+/'1%*&(:
3$$)%42$*'@+%/:
i+%/0'#)*'$*-"+)#).')*&#$%+/06%"0'4*$G**/'$#4&*0
○
Z#4&*0'-20$'06#)*'#'5+--+/'1%*&(
○
Z)*#$0'$6*'$G+'$#4&*0'#0'#'0%/,&*'$#4&*
○
M)%,%/#&'0$+)*('(#$#'#)*'/+$'#11*5$*(
○
D#/'4*')*-+9*('G6*/'/+'&+/,*)'/**(*(
○
i+%/'1#5$0:
I2-4*)0'"206*('$+')%,6$W'/2-*)%5:
I2-4*)0'"206*('$+'&*1$W'0$)%/,:
i+%/%/,'Z#4&*0
Z#4&*0')*-#%/'0*"#)#$*
○
8$*-0'0*&*5$*('%/'+/*'$#4&*'-#.'4*'6%,6&%,6$*('%/'$6*')*&#$*('$#4&*
○
A*&#$%/,'$#4&*0'%0'0%-%&#)'$+'@+%/%/,'$#4&*0'*B5*"$'$6#$:
A*&#$%/,'Z#4&*0
Week$3.2:$Attributes$and$Tables
Z62)0(#.='Y#.'?a='JS?d
e<S?'3Y
Document Summary
Spatial data relate to geometry and spatial features. Vector: characteristics of points, lines and polygons (1 or more per object. Raster: characteristics of pixels (only 1 per pixel) Placing observation into one of two or more mutually exclusive and exhaustive categories. Coding does not tell us anything about the quantity of attribute being measured. Order is meaningful, magnitude between the objects is not; average between cases not possible (not representative; mode or median) Objects ordered and the magnitude between them is meaningful (true numbers) How much more or less the attribute being measured is possessed by one object than another. Objects are ordered and magnitude between them is meaningful. How many times as much one object varies from another on a particular attribute attribute a/b key between distinguishing interval and ratio= origin or zero point. Ratio scale data have a natural or non-arbitrary zero point that indicates the presence or absence of something.
