Remove the lines in-between two different error bar

I want to remove the lines after every two error bars. This is because every two error bar represent a difference between one data.

>> MEAN' =

   89.1200
   88.9070
   88.1680
   88.1740
   87.8500
   87.6050
   74.8940
   74.6100
   88.7490
   88.7360
   87.4600
   88.7360
   85.3530
   85.9790
   90.7470
   91.2170
   83.9470
   84.4790
   93.5950
   94.1440
   83.0830
   82.9650
   91.3840
   91.7320
   91.5840
   92.0320
   95.0300
   95.3950
   94.8960
   95.3560
   91.5140
   91.9530
   93.3570
   93.8730

Standard deviation STD'=

0.6346 0.4709 1.4705 1.2295 1.2505 1.1407 0.3206 0.4055 0.5663 0.5767 0.7020 0.5767 1.2603 0.6356 0.2257 0.5393 0.5398 0.2920 1.0776 0.7926 0.8417 0.3398 1.3112 1.0532 0.1859 0.4610 0.5772 0.3456 0.3035 0.1798 1.0400 0.9772 0.1988 0.3018

This is the plot I am getting till now.

>>

Answer 1

[dpb]

N=length(mn);  % size of vectors for augmented row
errorbar(reshape([reshape(mn,2,[]);nan(1,N)],1,[]), ...
         reshape([reshape(sd,2,[]);nan(1,N)],1,[]))

Insert NaN every third location; plot and friends will ignore those points and generate line between the non-NaN locations.

Answer 2

[Marco Lehmann]

really? this is how matlab wastes our time?

[dpb]

Well, I'd agree there are many areas in which ML HG could be more friendly/efficient, but one at least has to give it a chance with a data organization that there's at least some possibility it could infer what was wanted on its own...with only a single vector as input, what else could errorbar be expected to do?