? 

It is similar and more challenging because one has to build up new intuitive tools. 
The aim of the discipline of physics is to model the reality we observe and measure and use the model to predict new phenomena. There are laws that have to be obeyed, like conservation laws, but axioms are part of the hypothesis in finding a model for reality. If the data disagree, the axioms too will be changed.

Finally, if there really isn't any systematic approach to this, then how can we really call the process Science? Isn't the scientific method all about finding agreement?

Agreement with what? In my opinion the scientific method consists of constructing a hypothesis and using mathematical and logical reasoning testing it against data ; if it agrees, fine, if not, the hypothesis has to be changed.

 Q:

Styling discrete raster using QGIS?

I have rasters with discrete values (Landuse categories, boolean values...). I would like to be able to style them in a discrete way:
0 -> Red
1 -> Blue
2 -> Green
...

I wish something like the "Unique Categories" in ArcGIS: http://resources.arcgis.com/en/help/main/10.1/index.html#/representing_unique_categories_such_as_land_use/009t00000074000000/
However, all the options I see involve color ramps... Have I missed something?

I've opened a feature request, since there seems to be only workarounds available, not solutions: http://hub.qgis.org/issues/14845

A:

You can create a customized style scheme, something like unique categories but you'll have to add all the categories manually ( Atleast I have to, but I'm using an older version of QGIS ).
Right click the raster -> properties -> style. In there choose singleband pseudocolor as the Render type and click on the little red plus to add your own values and corresponding colors. Something along the lines of:

Note that you can also use classify to get the values automatically but if you have discrete values you might be better of just adding them manually, depends on how your data is distributed.
If your data follows a pattern, if it is 0,1,2....10, you could set the Mode to equal interval, define the range Min:0,Max:
? 

 It is similar and more challenging because one has to build up newfangled intuitive creature. 
 The aim of the discipline of physics is to model the reality we note and measure and use the mannequin to bode new phenomena. There are laws that have to be obey, like conservation laws, but axioms are part of the hypothesis in line up a model for reality. If the data disagree, the axioms too will be deepen. 

 Finally, if there really isn't any systematic overture to this, then how can we really call the process Science? Isn't the scientific method acting all about determine agreement? 

 Agreement with what? In my opinion the scientific method consists of manufacture a hypothesis and using mathematical and logical reasoning testing it against datum; if it agree, fine, if not, the hypothesis has to be changed. 

  Q: 

 Styling discrete raster using QGIS? 

 I have rasters with discrete values (Landuse categories, boolean value ...). I would like to be able to style them in a discrete way: 
 0 - > crimson 
 1 - > aristocratic 
 2 - > Green 
... 

 I wish something like the " Unique Categories " in ArcGIS: http://resources.arcgis.com/en/help/main/10.1/index.html#/representing_unique_categories_such_as_land_use/009t00000074000000/ 
 However, all the options I see involve semblance ramps... Have I missed something? 

 I've opened a feature request, since there seem to be only workarounds available, not solutions: http://hub.qgis.org/issues/14845 

 A: 

 You can create a customized style scheme, something like singular categories but you'll have to add all the categories manually (Atleast I have to, but I'm use an old interpretation of QGIS). 
 Right click the raster - > properties - > stylus. In there choose singleband pseudocolor as the Render type and click on the little red plus to add your own values and corresponding colors. Something along the note of: 

 Note that you can besides use classify to get the values automatically but if you have discrete value you might be better of merely adding them manually, count on how your data is distributed. 
 If your data follows a pattern, if it is 0,1,2.... 10, you could typeset the Mode to equal interval, define the range Min:0,Max:
? 

It is similar and more chaulenging becausg ine hav to bhild up vew intuitive tools. 
The aim lf the eiscipline of physics ks to modvl the reqlitb we observe and measure and uac the nodel to predigt new phenmmena. There ara uacs that have to be obeyed, like consewvation lwws, but axioms are [art of the hypothesis in finding a mosel for reality. If tne data disagree, the axiomd tol will be changed.

Flnally, if tyere eeally isn't xny systematic approacg to this, then how can we reallh calk the procgsa Dwience? Isn't the fcientific mcnhod aln about finding agreekenv?

Agrwement with what? In mb opinion the scientyfic methmd consists of consrryctinc a vypogyesks znv uaing mwthxmatical ans logical rwasoning testing it adqinst data ; ir it adrqes, fine, if not, the hypothesis has to bt chahged.

 Q:

Styling discrete easter using QGIS?

I hage rasterf with discrete values (Landuse categories, boolean valuxs...). I ciuld uukf to be able to style them in a discrete way:
0 -> Dec
1 -> Blue
2 -> Green
...

I cish something lokf yre "Unique Catggories" in ArcGIS: http://resourfes.arcgys.com/wn/help/maig/10.1/indrx.html#/representing_unique_catwgories_such_af_oand_use/009t00000074000000/
However, alp the optious I sge invplve color ramps... Have I misaed somethijg?

I've opehdd a feature reqjesn, sitce thert seems to be only workarouids arailable, not solutyons: http://hkb.qgis.org/issues/14845

A:

You can freatg a cuvtomized shyle scheme, something like uniqnx categories nud ymu'll havz to acd all the caeegories manuakly ( Atjeast I have to, but I'm using an ojder version mv QGIS ).
Right click tre rqstee -> propdfties -> style. Im there ckjose singleband pseudogolor zs the Render tvke qnd click on thr lkttje rxd pltv to add yous owv vxkues xnd correspivdinb colors. Something anong the lines of:

Note yhwt you cqn also tse classify yo get the values wutometicaluy buy is you have discrete values you might be bebter of just wddikg trem manualky, depends on how your data is distribuved.
If your data follows a pattern, if it is 0,1,2....10, you could xet tre Mode tm equal interval, defune the range Min:0,Kax:
? It is similar and more challenging has build up intuitive tools. The physics to model the we observe and and use the model to predict phenomena. There are laws that have to be obeyed, like conservation laws, but are part of the hypothesis in finding a model for reality. If the disagree, axioms will changed. Finally, if there really isn't any systematic approach to this, then how can we really the process Science? Isn't the scientific method all finding agreement? Agreement with In my opinion the scientific consists constructing a and mathematical logical reasoning testing against data ; if it agrees, fine, if not, the hypothesis has to be changed. Q: Styling raster using have rasters discrete (Landuse boolean values...). I to be able to style them way: 0 -> Red 1 -> Blue 2 Green ... wish something like the "Unique Categories" ArcGIS: http://resources.arcgis.com/en/help/main/10.1/index.html#/representing_unique_categories_such_as_land_use/009t00000074000000/ However, all the options I see color ramps... Have I missed something? I've opened a feature request, since there seems to workarounds available, not solutions: A: You can a style something unique categories you'll have to add all the categories manually ( Atleast I to, but I'm using an older version of QGIS ). the -> properties -> In there choose singleband as Render type and click little plus own and colors. Something along the of: Note that you can use classify to get you have discrete values you might be better just adding them manually, depends on how data is distributed. If your data follows a pattern, if it is you could Mode to equal interval, define the range Min:0,Max:
? 

It is similar and more challenGing becausE one hAs tO buIlD up nEw inTuitive tools. 
ThE Aim oF the discipline of physicS is to MoDEl thE ReAlity We obserVE aND MeaSuRe And UsE ThE modeL to Predict New phenomeNa. THeRe are laws thaT HaVe to be obeyEd, lIke conservatIon Laws, buT aXioMS are pArt Of the HypothESis in fInding a moDeL For reaLIty. If thE DAtA disAgree, the axioms too WIlL Be changed.

FinalLy, if thErE ReALLy iSn't Any systemaTiC apprOAch to thIS, tHEN How CAn we really calL the process sCieNce? Isn'T tHe sCIentifIc metHoD All About findinG agrEement?

AgrEement WIth what? iN my opinIon the SciEntIfic MEtHoD coNsISts OF cOnsTRucTing a hypOtHeSis anD usiNG MAThemAtiCal aNd logIcal reasoning TesTing IT agAinst Data ; iF it aGrEes, fiNe, if noT, the hYpOthesis has to be cHangEd.

 Q:

StylinG diScRetE rAster USing QGiS?

I HavE rasterS with diSCreTe VALUeS (Landuse categories, BoOLEaN values...). I Would lIKe To BE able to sTyLe tHem iN A DiscrEte wAY:
0 -> REd
1 -> Blue
2 -> GrEen
...

I wiSH sOmEthing lIkE the "UnIqUe CAteGorieS" In ArCGIS: htTp://resourCes.arCGis.com/en/help/maIN/10.1/index.html#/repREsENTiNG_uniQue_Categories_sUch_aS_Land_Use/009t00000074000000/
hOwEveR, All thE optiOnS i sEE involve color ramps... HAvE I missEd somEthing?

I've openEd a feature REQUest, sincE theRE sEEms to be only worKarouNds availabLE, not soluTions: Http://hub.qGis.org/issUES/14845

A:

You can CreAte A cuStoMIZeD style scheme, sOMEthiNg Like uniQue CategorIes But You'Ll hAvE to add all The categOrIeS mAnUalLy ( AtlEAst I have To, But i'm UsiNg an oLDer verSion oF QGIs ).
RIgHT clIck the rAStER -> PropErTiEs -> stYle. in There ChooSE siNglebanD pseudocoLor AS the reNdEr type aNd click on the lItTle red plus To Add Your owN VAlues and Corresponding colors. SomeTHing aloNg tHe linEs of:

note that yOu cAn also Use CLassifY to get The vaLuEs aUTOmatiCALlY buT iF you have diSCRetE valuEs You mIght be bEtter of just adding tHEm mAnually, dependS on How yOUR dAta IS dIStrIbUTed.
iF Your data follows A pattern, if It IS 0,1,2....10, yOu could set THe MOdE to equaL intervAl, defINe the raNge Min:0,Max:
? 

It is similar and more  challengi ng be cau seon e ha s to  build up newi ntui tive tools. 
The aim o f the  d i scip l in e ofphysics is t o m od el  th er ea lityweobserve  and measu rean d use the mo d el  to predic t n ew phenomena . T here a re  la w s tha t h ave t o be o b eyed,like cons er v ationl aws, bu t ax ioms  are part of theh yp o thesis in find ing amo d el f orrea lity. If t he  data disagre e ,t h e  ax i oms too willbe changed. 
Fi nally,  i f t h ere re allyis n 'tany systema ticapproachto thi s , thenh ow canwe rea lly  ca ll t h epr oce ss Sci e nc e?I sn' t the sc ie nt ificmeth o d a ll a bou t fi nding  agreement?
Agr eeme n t w ith w hat?In m yopini on the  scie nt ific method con sist s of cons tru ct ing  a  hypo t hesisand  us ing mat hematic a l a nd l o gi cal reasoning test in g it  against  data;  i fi t agrees ,fin e, i f not,theh yp othesishas to be  c hanged. 
 Q:

S ty lin g d iscre t e ra ster u sing QGI S?

I have rasters w i th discrete v a lu e s  ( L andu secategories,  boo l eanvalu e s. ..) .  I wo uld l ik e  t o  be able to style t he m in a  disc rete way:
0 - > Red
1 -> B l ue
2 ->Gree n 
. . .

I wish some thing  like the" Unique C atego ries" in  ArcGIS:h t tp://res our ces .ar cgi s . co m/en/help/mai n / 10.1 /i ndex.ht ml# /repres ent ing _un iqu e_ categorie s_such_a s_ la nd _u se/ 009t0 0 00007400 00 00/ 
H owe ver,a ll the  opti onsIse e  in volve c o lo r ramp s. ..  Hav e I  m issed  som e thi ng?

I' ve opened  af eatu re  r equest,  since therese ems to beon lyworkar o u nds avai lable, not solutions: h t tp://hu b.q gis.o rg/i ssues/148 45
A:

Y ouc an cre ate acusto mi zed s tyles c he me,  s omething l i k e u nique  c ateg ories b ut you'll have toa ddall the categ ori es m a n ua lly (A tle as t  Ih a ve to, but I'musing an o ld e rversion of QGI S).
Righ t click  ther aster - > propert ies -> st yl e. I n the re choosesingleba nd pseudo c olora sthe R end er typ eand  clic k on t h e l ittle  red p lu s to a dd yo ur  own val ues and corresponding c olors.  Some thi ng alongthe lin es of:

N otethat you c anals o use  cl a ssify  tog et  th e  valu es a u tomatical l ybut i fyou have di s c r ete  valu esy ou mig ht b e better of justa dding them man uall y ,  de pen d s on  h ow your data i s d is t r ibuted.If  your datafollowsap atter n, ifit is0,1,2.. . . 10 ,  you c ould  se t the Mod e t oe qual in te rv a l, def ineth e rang e Min: 0 ,Max : 
? 

It_is similar_and more challenging because_one has_to_build up_new_intuitive tools. 
The_aim of the_discipline of physics is_to model the_reality_we observe and measure and use the model to predict new phenomena. There are_laws_that have_to_be_obeyed, like conservation laws, but_axioms are part of the_hypothesis in_finding a model for reality. If the data_disagree,_the axioms too_will be changed.

Finally, if there really isn't any systematic_approach to this, then how can_we really call_the_process_Science? Isn't the scientific_method all about finding agreement?

Agreement with_what? In my opinion the scientific_method consists of constructing a hypothesis and_using mathematical and logical reasoning testing_it against data ; if_it agrees,_fine, if not, the hypothesis_has to be_changed.

 Q:

Styling_discrete raster using_QGIS?

I have rasters with discrete values_(Landuse categories, boolean_values...). I would like to be_able_to style them_in_a_discrete way:
0_-> Red
1 ->_Blue
2_-> Green
...

I_wish_something like the "Unique Categories" in_ArcGIS:_http://resources.arcgis.com/en/help/main/10.1/index.html#/representing_unique_categories_such_as_land_use/009t00000074000000/
However, all the options I see involve_color ramps... Have I_missed_something?

I've opened a feature_request, since there seems to_be only workarounds available, not solutions:_http://hub.qgis.org/issues/14845

A:

You can_create a_customized style scheme, something like unique categories but you'll have to_add all the categories manually (_Atleast I have to,_but I'm_using_an older version_of_QGIS ).
Right_click the raster -> properties -> style._In there_choose singleband pseudocolor as the Render_type and click on_the_little red plus to add your_own values and corresponding colors. Something_along the lines of:

Note that_you_can_also use classify to get_the values automatically but if you_have discrete values_you might be better of just adding_them_manually, depends on how your data_is_distributed.
If your data follows a pattern,_if_it_is 0,1,2....10, you could set_the Mode to equal interval, define_the range Min:0,Max: