Is it ok to fail with analysis? I'm a graduate student and I am really worried about the quality of my master thesis. It's my second year in graduate school and I've already done some pilot studies. But, entering the school, I was absolutely new in the real science (cognitive psychology) and now I'm afraid that data I collected is too dirty and statistical analysis I provided just incorrect. I have to present and publish my results anyway if I want to end graduate school and become a phd, but I feel ashamed of them.
So, I wonder is it ok to have problems with data when I'm just studying or I should refuse to publish or present these results?
My supervisor thinks everything's great and local journals will accept papers, but it is just bad, isn't it?
Since your supervisor thinks that everything is fine, you should not be ashamed of publishing your results. 

If you are still unsure: You should talk about your concerns to your supervisor and request an honest opinion. Keep in mind, that he/she is also (partly) responsible for the quality of your results!