I am trying to insert four figures in a LaTeX document but if I use subfigure command, two of my figures stay in first row and the other two go to the second line. Like this :
The other solution I tried was using minipage command, but the problem with minipage is that the subfigures get normal figure caption (like Figure 1) while I would like subfigure captions like (a). See the following figure:
What I prefer is to have something like second picture but with the captions like first picture.