How can I remove the line in 3D plot

I am very new to MatLab, I am trying to do 3D plotting as a surface but I think I am doing something wrong since my image does not look right. Also when I try to do a Mesh or surf it complains that "z must be a matrix, not a scalar or vector." To resolve this I let Z=meshgrid(z); in order to change z to a Vector. I am not sure if this is right.

Thank you in advance.

Below is my code:

slow = [21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24];

fast = [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20];

z = [130987 72144 63869 60094 61169 52175 50125 43487 47181 38644 21694 34581 42581 38725 37137 28512 30225 56275 57875 64706 132044 74850 69681 66281 63337 56937 51250 45706 40056 29337 18175 28444 37894 41156 31331 29444 33150 45438 44225 33444 132994 75606 71137 69362 57494 50775 46606 42562 30319 27894 26875 33337 39144 35725 29087 29619 42656 45481 38550 34581 133925 78169 65931 75050 60944 59769 49944 38762 35025 36681 32944 37550 44319 41294 41237 34506 47269 51850 42394 39487];

figure

plot3(slow,fast,z)

xlabel('slow')

ylabel('fast')

grid on

% This is what I use to plot Mesh graph but it does not look right I am not sure if using Z=meshgrid(z); is correct?

% [X1, X2] = meshgrid(slow,fast);

%

% Z=meshgrid(z);

% %Z=X1.*X2;

%

% figure

% mesh(X1,X2,Z)

% shading interp

[ben gof]

Here is what I am trying to acheive.

This is my complete data set:

slow = [ 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 74 74 74 74 74 74 74 74 74 74 74 74 74 74 74 74 74 74 74 74 73 73 73 73 73 73 73 73 73 73 73 73 73 73 73 73 73 73 73 73 72 72 72 72 72 72 72 72 72 72 72 72 72 72 72 72 72 72 72 72 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 69 69 69 69 69 69 69 69 69 69 69 69 69 69 69 69 69 69 69 69 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 66 66 66 66 66 66 66 66 66 66 66 66 66 66 66 66 66 66 66 66 65 65 65 65 65 65 65 65 65 65 65 65 65 65 65 65 65 65 65 65 64 64 64 64 64 64 64 64 64 64 64 64 64 64 64 64 64 64 64 64 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 54 54 54 54 54 54 54 54 54 54 54 54 54 54 54 54 54 54 54 54 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 37 37 37 37 37 37 37 37 37 37 37 37 37 37 37 37 37 37 37 37 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 27 27 27 27 27 27 27 27 27 27 27 27 27 27 27 27 27 27 27 27 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21];

fast = [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20];

z = [70400 45250 39006 36344 33444 31987 24969 22113 25656 23219 14844 18875 25694 20019 16294 8462 4469 6775 8175 12519 70031 45487 36181 33344 29231 25506 21306 21688 22756 21300 12769 19537 26712 18856 18581 14556 5531 10725 7012 9169 67781 46206 32375 31762 26544 26937 22881 21006 24738 23194 21556 17600 24525 21744 19337 16094 7144 11512 11756 10275 67987 47994 34481 33906 30075 24731 23644 14394 19031 24781 22762 17188 24406 22281 19962 14588 7437 9800 7562 11750 70375 50087 34606 30381 28994 21925 23650 18162 23956 24544 23925 18687 23075 22813 18512 17150 11162 11275 11631 15275 71694 47125 34975 28112 26237 22600 22069 15131 27281 20625 24469 20719 29212 29994 18038 19187 11538 15094 11038 15356 70525 49687 36937 30631 28512 27731 18644 18031 29100 22588 21575 21569 28981 31088 19288 18981 12319 14244 7350 12175 72100 49950 31275 25800 29800 25987 21681 16169 28688 21200 21525 20694 29581 28600 18706 14019 8856 11375 10050 11762 74681 50450 27412 29469 25881 31506 16725 16300 25275 23219 27038 25519 24187 32187 24844 16125 14619 12850 9269 9444 74619 50550 31444 25975 26112 30344 19656 13000 16775 19744 26244 27988 28550 33400 22394 17131 13762 9100 9931 10862 73994 52162 33094 29094 25631 27950 16356 12950 13844 21975 18850 27544 25087 36444 27537 16625 17600 10919 12194 10175 75025 51750 35625 28237 27831 25237 13937 14694 11825 16550 15031 23994 23981 33881 29781 19706 10575 9913 7800 11088 77144 53269 38475 30550 27262 23906 14462 8994 12900 18962 11794 22744 24156 35131 33169 26787 16112 14363 13844 12213 77838 55362 41469 32362 26056 23619 13762 10000 15956 16544 13662 24187 24112 30806 33125 29987 20075 18725 14606 17056 78431 49381 43087 34887 28569 23019 11119 7744 11250 12887 15506 21356 24100 29525 37569 31900 21369 21687 20937 20444 77956 51731 42575 33675 26569 22081 11950 7556 11700 16406 15800 23850 22862 24294 32100 33431 23688 21294 18138 18975 84362 53281 43337 38431 27181 21112 14525 4463 10194 13669 16788 21375 20850 21987 29862 34312 24481 25906 17300 18213 86425 56831 39319 39612 29550 23206 19894 3581 6163 13875 17844 22450 17956 15550 28956 32550 20231 25794 22219 19094 88038 58619 42875 40225 30837 24125 15500 7194 9925 15956 16738 19144 16775 17575 28338 30719 27956 26831 25344 22812 85900 60762 43594 38787 29844 23431 19281 10031 10194 14363 14681 18412 18756 19112 28244 31519 28794 26381 27075 22150 85525 58881 44837 39900 29594 23894 17187 12919 6806 15775 16238 24631 16100 18775 23200 24894 24462 25350 22112 23956 89225 65519 47925 38812 30731 26512 15400 14287 7187 16444 18006 20450 12356 21687 19931 25337 25587 19938 25269 21212 96444 66456 50931 38744 33088 25706 18219 16300 8300 20194 17213 18938 14319 17175 21706 27131 19931 20981 21238 24806 97862 69425 53031 42875 32138 25606 23212 20944 11281 16469 20669 18275 14756 19856 19781 29688 25369 17650 23431 27681 98131 72856 51531 47569 37119 26213 20981 21119 11806 21737 22819 19575 17288 20075 22650 27931 28606 19900 18419 26050 99256 74062 55387 48594 40600 26856 27456 22831 15938 23025 29056 15912 17275 18112 19725 25706 26306 21475 21050 20388 101081 74287 56662 52456 43631 25794 25838 24587 20225 21381 32369 24300 25150 23750 20950 22419 23969 24862 20106 21288 101800 78994 56037 48625 41369 31288 23100 26019 21231 21687 32875 29419 30231 29700 27188 21725 22694 25600 23837 19419 105700 77131 61337 50662 43450 31775 27356 22137 24975 26587 34156 35712 25781 30437 30475 28000 22600 23800 21244 15731 106269 73094 59719 54331 46956 37831 32113 29069 29337 30762 33500 34031 29825 33119 34350 29437 26812 27637 18431 19625 103975 74837 61538 48313 49756 47994 41619 28719 34875 32544 30456 29875 31931 32519 32794 33869 27912 30944 24512 21519 109213 76525 60319 54969 49375 53131 45869 33013 41712 34694 34600 25100 27225 25712 32881 31137 31881 27875 25487 22213 111175 80631 61837 54712 52331 49150 49638 38706 41919 34281 36962 29813 26506 22700 27850 26400 24906 30019 23806 23537 113631 76719 61019 54781 47662 53750 45106 43969 43938 35687 33981 37781 32725 28656 23319 27669 20406 32819 22669 25394 119194 81400 64281 54862 48887 52794 51675 44238 42044 30731 36269 40256 40075 33744 28819 31037 21744 32500 30025 23894 121844 80775 62975 58237 50656 54312 51756 48638 48544 37581 44025 46306 41563 36050 30037 33444 25156 20281 27950 33581 115263 85569 66325 60462 53150 54419 52413 53581 52300 42813 38569 53488 43406 43019 36819 39262 31662 26225 32569 39625 118988 82662 66837 62175 54819 47612 48106 48781 44519 41962 45794 46800 40488 47187 46963 39981 35356 33037 32319 34606 124081 84975 65137 61031 56806 50612 50700 52794 50619 44325 47431 44169 42325 42206 45256 41050 36031 28725 28694 28669 123488 81125 63700 63450 60887 49375 54925 56206 51619 45344 46094 44006 42962 41538 47600 46094 36256 31719 25731 31075 123325 80200 67894 67812 64619 51281 56156 55000 51812 47262 44081 49013 43344 38831 38556 38450 33881 30350 27150 29675 126075 78794 69481 63588 68100 55394 62812 49037 52169 45631 44388 46063 41556 38194 26994 30550 33906 32119 27169 26819 124694 87238 72481 69994 67650 57894 56369 49444 46600 44431 45156 46813 45519 35863 37275 30687 39775 36500 27025 22694 130075 86738 75506 66675 70775 57906 57300 51212 53762 49369 42594 44600 42756 31431 31950 33369 35362 35637 34762 37237 130138 86950 75094 63406 71425 58206 52444 45987 43325 46456 45462 45506 36500 34537 39144 36262 40281 35306 33500 37469 130706 92269 75769 65556 65344 58425 53569 49088 40856 41556 42544 46037 42969 42169 42569 38306 39737 31381 25481 33194 129800 95513 82044 72194 68050 58881 57788 49063 40256 36694 40169 48294 45137 49519 44138 44300 35269 34938 31287 34981 128600 93806 81731 74562 71275 61163 53681 44475 41119 31131 35575 47581 50169 51919 49125 49675 45725 44325 39631 41656 126825 92613 85837 76794 74600 69112 57738 44225 44863 37531 36663 40894 44212 47175 47831 41712 42762 38063 43906 47106 130894 93031 81869 74975 80175 72419 63500 48056 46538 42094 40181 44788 49138 47081 47012 48706 41119 38619 39381 45969 132956 89012 81394 80675 74537 65756 58831 50081 49069 48050 48038 46444 50300 49731 48081 46631 45556 40181 38775 43006 140019 83506 83487 78250 70700 71750 54006 49287 46981 57063 45331 54400 48169 44606 47375 49806 50644 45556 47919 38637 138344 78319 81969 70144 69006 67181 50700 42300 41181 49662 34850 46119 46075 48600 48300 50781 51150 42656 45006 45056 135413 79081 76100 75762 66969 71931 49425 42144 37375 48087 36775 46775 49075 44575 47225 51931 53488 40950 45556 41037 140975 77981 81956 77481 64056 65150 46037 41337 41656 39381 31119 38337 45294 51438 49769 52369 58400 51519 42431 45344 137563 80088 76750 74506 64981 65087 46744 36631 39525 43275 32087 39456 39381 41338 43306 44131 53544 58213 39794 32912 133925 78169 65931 75050 60944 59769 49944 38762 35025 36681 32944 37550 44319 41294 41237 34506 47269 51850 42394 39487 132994 75606 71137 69362 57494 50775 46606 42562 30319 27894 26875 33337 39144 35725 29087 29619 42656 45481 38550 34581 132044 74850 69681 66281 63337 56937 51250 45706 40056 29337 18175 28444 37894 41156 31331 29444 33150 45438 44225 33444 130987 72144 63869 60094 61169 52175 50125 43487 47181 38644 21694 34581 42581 38725 37137 28512 30225 56275 57875 64706];

Answer 1

[KSSV]

clc; clear all ;
slow = [21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24];
fast = [1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20];
z = [130987	72144	63869	60094	61169	52175	50125	43487	47181	38644	21694	34581	42581	38725	37137	28512	30225	56275	57875	64706	132044	74850	69681	66281	63337	56937	51250	45706	40056	29337	18175	28444	37894	41156	31331	29444	33150	45438	44225	33444	132994	75606	71137	69362	57494	50775	46606	42562	30319	27894	26875	33337	39144	35725	29087	29619	42656	45481	38550	34581	133925	78169	65931	75050	60944	59769	49944	38762	35025	36681	32944	37550	44319	41294	41237	34506	47269	51850	42394	39487];

x = unique(slow) ; 
y = unique(fast) ; 
nx = length(x) ; 
ny = length(y) ; 
X = reshape(slow,ny,nx) ; 
Y = reshape(fast,ny,nx) ; 
Z = reshape(z,ny,nx) ; 

surf(X,Y,Z)

[ben gof]

Thank you so much, it worked. I spent a long time yesterday to make it look right.