[R] sort columns

From: Ana Quitério <ana.quiterio_at_ine.pt>
Date: Wed 01 Feb 2006 - 22:55:52 EST


Hi.  

I have a simple (I think) question  

My dataset have these variables:  

names(data)

  [1] "v1" "v2" "v3" "v4" "v5" "v6" "v7" "v8" "v9" "v10"
"v11" "v12" "v13" "v14" "v15" "v16" "v17" "v18" "v52"

 [20] "v53" "v54" "v55" "v56" "v57" "v58" "v59" "v60" "v61" "v62"
"v63" "v64" "v65" "v66" "v67" "v68" "v69" "v70" "v71"

 [39] "v72" "v73" "v74" "v75" "v76" "v77" "v78" "v79" "v80" "v81"
"v19" "v20" "v21" "v22" "v23" "v24" "v25" "v26" "v27"

 [58] "v28" "v29" "v30" "v31" "v32" "v33" "v34" "v35" "v36" "v37"
"v38" "v39" "v40" "v41" "v42" "v43" "v44" "v45" "v46"

 [77] "v47" "v48" "v49" "v50" "v51" "v82" "v83" "v84" "v85" "v86"
"v87" "v88" "v89" "v90" "v91" "v92" "v93" "v94" "v95"

 [96] "v96" "v97" "v98" "v99" "v100" "v101" "v102" "v103" "v104" "v105"
"v106" "v107" "v108" "v109" "v110" "v111" "v112" "v113" "v114"

(...)

 [856] "v856" "v857" "v858" "v859" "v860" "v861" "v862" "v863" "v864" "v865"
"v866" "v867" "v868" "v869" "v870" "v871" "v872" "v873" "v874"

[875] "v875" "v876" "v877" "v878" "v879" "v880" "v881" "v882" "v883" "v884"
"v885" "v886" "v887" "v888" "v889" "v890" "v891" "v892" "v893"

[894] "v894" "v895" "v896" "v897" "v898" "v899" "v900" "v901" "v902" "v903"
"v904" "v905" "v906" "v907" "v908" "v909" "v910" "v911" "v912"

[913] "v913" "v914" "v915" "v916" "v917" "v918" "v919" "v920" "v921" "v922"
"v923" "v924" "v925" "v926" "v927" "v928" "v929" "v930" "v931"
 

And I want obtain another dataset with sort columns names, and I do this:  

data1<-data[,sort(colnames(data))]  

names(data1)  

[1] "v1" "v10" "v100" "v101" "v102" "v103" "v104" "v105" "v106" "v107"
"v108" "v109" "v11" "v110" "v111" "v112" "v113" "v114" "v115"

 [20] "v116" "v117" "v118" "v119" "v12" "v120" "v121" "v122" "v123" "v124"
"v125" "v126" "v127" "v128" "v129" "v13" "v130" "v131" "v132"

 [39] "v133" "v134" "v135" "v136" "v137" "v138" "v139" "v14" "v140" "v141"
"v142" "v143" "v144" "v145" "v146" "v147" "v148" "v149" "v15"

 [58] "v150" "v151" "v152" "v153" "v154" "v155" "v156" "v157" "v158" "v159"
"v16" "v160" "v161" "v162" "v163" "v164" "v165" "v166" "v167"

 [77] "v168" "v169" "v17" "v170" "v171" "v172" "v173" "v174" "v175" "v176"
"v177" "v178" "v179" "v18" "v180" "v181" "v182" "v183" "v184"

 [96] "v185" "v186" "v187" "v188" "v189" "v19" "v190" "v191" "v192" "v193"
"v194" "v195" "v196" "v197" "v198" "v199" "v2" "v20" "v200"

[115] "v201" "v202" "v203" "v204" "v205" "v206" "v207" "v208" "v209" "v21"
"v210" "v211" "v212" "v213" "v214" "v215" "v216" "v217" "v218"

[134] "v219" "v22" "v220" "v221" "v222" "v223" "v224" "v225" "v226" "v227"
"v228" "v229" "v23" "v230" "v231" "v232" "v233" "v234" "v235"

(...)

[856] "v87" "v870" "v871" "v872" "v873" "v874" "v875" "v876" "v877" "v878"
"v879" "v88" "v880" "v881" "v882" "v883" "v884" "v885" "v886"

[875] "v887" "v888" "v889" "v89" "v890" "v891" "v892" "v893" "v894" "v895"
"v896" "v897" "v898" "v899" "v9" "v90" "v900" "v901" "v902"

[894] "v903" "v904" "v905" "v906" "v907" "v908" "v909" "v91" "v910" "v911"
"v912" "v913" "v914" "v915" "v916" "v917" "v918" "v919" "v92"

[913] "v920" "v921" "v922" "v923" "v924" "v925" "v926" "v927" "v928" "v929"
"v93" "v930" "v931" "v94" "v95" "v96" "v97" "v98" "v99"
   

But I would like obtain, something like this: "v1" "v2" "v3" "v4" "v5"
"v6" (...) "v928" "v929" "v930" "v931"
 

It's possible?  

Thanks in advance  

Ana Quiterio  

Ana Quiterio

INE - DME
Serviço de Metodos Estatisticos
Tel: +351 21 842 61 00 (Ext: 3222)
E-mail: ana.quiterio@ine.pt <mailto:ana.quiterio@ine.pt>

Lisbon/Portugal          

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