[R] ggplot2 and the legend
Jeff Newmiller
jdnewmil at dcn.davis.CA.us
Thu Nov 22 17:48:17 CET 2012
a) Don't crosspost. Read the posting guide(s) for more cautions. This question is probably more appropriate on the ggplot Google Group than either of these two mailing lists.
b) Post reproducible examples.
c) Use data frames with ggplot, not matrices. The read.csv or read.table functions automatically create data frames. It really is important for you to show how you create the data objects that give you problems when asking for help, since for all we know you just don't know the difference. See point (a) above.
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Sent from my phone. Please excuse my brevity.
Peter Kupfer <peter.kupfer at me.com> wrote:
>Dear all,
>i try to plot with ggplot2. Therefor I have an matrix with 3 colums.
>With cbind I add an additional column called "col". I need this column
>"col" because in a later step and want to specify here some plot
>details which I will get from another analysis
>If I want to plot with this code, I have the problem that the legend is
>wrong.
>Blue changed to green and green to blue. Furthermore the colors in the
>plot seem a little bit strange. Can anybody help me out?
>All the best and thanks
>Peter
>
>
>
>#####THE CODE
>
>
>p0 <- ggplot(DATA, aes(Freq, Var1))
>p1 <- p0+ geom_point(aes(Freq, reorder(Var1, rep(score,cl.count)),
>colour=col))
>
>p2 <- p1 +geom_segment(aes(x = 0, xend = Freq, y = Var1, yend = Var1,
>colour=col))
>p3 <- p2 + facet_grid(.~Var2)
>plot(p3)
>
>
>
>#### THE DATA #
>
>#class(DATA) = data.frame
>#class(DATA$Var1) = class(DATA$Var2) = factor
>
>#class(DATA$Freq) = numeric
>#class(DATA$col) = character
>
>Var1 Var2 Freq col
>1 208869_s_at JT 10.6802376685463 blue
>2 203394_s_at JT 10.0160470327077 blue
>3 201533_at JT 9.58401500697783 blue
>4 216520_s_at JT 9.07764840614892 blue
>5 210999_s_at JT 9.00219110130877 green
>6 212284_x_at JT 8.62193952504277 blue
>7 203752_s_at JT 8.69193736253539 green
>8 203574_at JT 8.41492571590263 blue
>9 219629_at JT 8.19111292436667 blue
>10 201473_at JT 8.035082989931 green
>11 210592_s_at JT 8.00639829720742 green
>12 200768_s_at JT 7.88012483915651 green
>13 201565_s_at JT 7.89885432096935 green
>14 AFFX-r2-P1-cre-3_at JT 7.86490927895639 blue
>15 202014_at JT 7.69345791769434 green
>16 212671_s_at JT -7.43350555284605 green
>17 203395_s_at JT 7.51127977823914 blue
>18 208980_s_at JT 7.52175408445448 blue
>19 207783_x_at JT 7.31954223019292 blue
>20 215446_s_at JT -6.28236730203077 green
>21 203034_s_at JT 7.24582647671987 blue
>22 211943_x_at JT 7.22247828112639 green
>23 203974_at JT -6.84217612309489 green
>24 201810_s_at JT 7.0727443704914 green
>25 201693_s_at JT 7.11350154823655 blue
>26 213614_x_at JT 7.07586402329325 green
>27 AFFX-CreX-5_at JT 7.05274590106307 blue
>28 201798_s_at JT -6.98858491240942 blue
>29 212869_x_at JT 6.97833756793094 green
>30 201531_at JT 6.96660504363297 green
>31 201170_s_at JT 6.90904695259236 green
>32 200886_s_at JT -6.92645789612039 blue
>33 AFFX-r2-P1-cre-5_at JT 6.85399276205727 blue
>34 201429_s_at JT 6.68557384216737 green
>35 212665_at JT 6.75579868986925 green
>36 208695_s_at JT 6.8087149011011 green
>37 211654_x_at JT -6.7426888322764 green
>38 209927_s_at JT -6.74856557366229 green
>39 203107_x_at JT 6.72120597236789 blue
>40 211296_x_at JT 6.60226581063165 green
>41 208869_s_at OA -3.73983541027906 green
>42 203394_s_at OA -3.29203821581412 green
>43 201533_at OA -3.2383756900468 blue
>44 216520_s_at OA -4.59979375515969 blue
>45 210999_s_at OA -5.10853597491871 green
>46 212284_x_at OA -5.84925048581651 blue
>47 203752_s_at OA -4.54427623838229 blue
>48 203574_at OA -2.59882534850623 blue
>49 219629_at OA -4.35550869055387 blue
>50 201473_at OA -3.15685663855675 blue
>51 210592_s_at OA -4.52611461089035 blue
>52 200768_s_at OA -2.76833454650619 blue
>53 201565_s_at OA -3.80972141262264 green
>54 AFFX-r2-P1-cre-3_at OA -3.53240421347696 green
>55 202014_at OA -2.60784960582222 blue
>56 212671_s_at OA 1.68584117381632 green
>57 203395_s_at OA -2.27910272551108 blue
>58 208980_s_at OA -3.66266591800146 green
>59 207783_x_at OA -3.93093352561262 blue
>60 215446_s_at OA 6.26626194024723 green
>61 203034_s_at OA -3.84606488854982 blue
>62 211943_x_at OA -3.30831181470312 green
>63 203974_at OA 1.17068337099947 green
>64 201810_s_at OA -2.07855331860079 green
>65 201693_s_at OA -2.74740330465003 blue
>66 213614_x_at OA -3.03851670866666 blue
>67 AFFX-CreX-5_at OA -3.46221400689819 green
>68 201798_s_at OA 4.03100733638473 green
>69 212869_x_at OA -3.97300711584927 green
>70 201531_at OA -2.96907452702537 green
>71 201170_s_at OA -2.70131412682545 green
>72 200886_s_at OA 2.96401783822817 blue
>73 AFFX-r2-P1-cre-5_at OA -2.89903293592039 blue
>74 201429_s_at OA -4.35557947874114 blue
>75 212665_at OA -2.39194028704917 blue
>76 208695_s_at OA -3.35547642329559 green
>77 211654_x_at OA 2.68663713811722 green
>78 209927_s_at OA 3.34341605878591 blue
>79 203107_x_at OA -3.66321419312914 blue
>80 211296_x_at OA -4.25932160076237 green
>81 208869_s_at RA -6.52772554526193 green
>82 203394_s_at RA -6.32419887021955 green
>83 201533_at RA -5.96832724224416 blue
>84 216520_s_at RA -4.21160115876773 blue
>85 210999_s_at RA -3.662138171127 green
>86 212284_x_at RA -2.60782479125985 blue
>87 203752_s_at RA -3.90104095781671 green
>88 203574_at RA -5.47027470876589 blue
>89 219629_at RA -3.60753898792399 green
>90 201473_at RA -4.58816673507709 green
>91 210592_s_at RA -3.27334582039087 blue
>92 200768_s_at RA -4.80784295112116 blue
>93 201565_s_at RA -3.8459928330509 blue
>94 AFFX-r2-P1-cre-3_at RA -4.07489406787897 green
>95 202014_at RA -4.7832177524091 green
>96 212671_s_at RA 5.40590792815972 green
>97 203395_s_at RA -4.92107150759781 blue
>98 208980_s_at RA -3.62962656459378 green
>99 207783_x_at RA -3.18712183828209 blue
>100 215446_s_at RA 0.0151477360559071 blue
>101 203034_s_at RA -3.19761157077928 blue
>102 211943_x_at RA -3.68142990571529 blue
>103 203974_at RA 5.33426547049511 green
>104 201810_s_at RA -4.69723616790538 blue
>105 201693_s_at RA -4.10648979370521 green
>106 213614_x_at RA -3.79728641367864 blue
>107 AFFX-CreX-5_at RA -3.37703866352978 green
>108 201798_s_at RA 2.78171984514488 green
>109 212869_x_at RA -2.8266333324756 blue
>110 201531_at RA -3.7598371247344 green
>111 201170_s_at RA -3.95754079263605 green
>112 200886_s_at RA 3.72683314668998 blue
>113 AFFX-r2-P1-cre-5_at RA -3.71979768994025 blue
>114 201429_s_at RA -2.19145276606072 green
>115 212665_at RA -4.10438313399814 blue
>116 208695_s_at RA -3.24790872151558 green
>117 211654_x_at RA 3.81487862974044 blue
>118 209927_s_at RA 3.20267913105723 green
>119 203107_x_at RA -2.87616341412488 blue
>120 211296_x_at RA -2.20363261389773 green
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