Histogram stats - Sample Cast
      ------------------------------
     Cast 4
       Mean sigma:       26.2591       RMS: 0.0022855
       Mean theta:       19.2566       RMS: 0.010223
       Mean salinity:    36.7047       RMS: 0.0017902
       Mean Pressure:    83.1568       RMS: 4.174
       Mean Chlorophyll: 1.6859       RMS: 1.5573