I need help with fixing this code. Everytime i run the code an error comes up for step $2.$ Step one has the imported datas that i need and its supposed to generate a two graphs. The two graphs that i need are shown in the

picture.

$\%$ Step $1$: Import the two datasets and combine them into one global datasetdata$1=$ importdata$(\text{'}2021\_$Cars$\_$Aggregated.csv$\text{'})$; $\%$ Dataset is stored in 'download file'data$2=$ importdata$(\text{'}2021.$Vans$\_$Aggregated.csv$\text{'})$; $\%$ The second dataset is stored in 'download file'$\%$ Combine the datasetscombined$\_$data $=[$data$1$; data$2]$;$\%$ Step $2$: Bar chart showing how many cars use distinct fuel typesfuel$\_$types $=$ unique$($combined$\_$data$($:$,1))$;fuel$\_$type$\_$counts $=$ histcounts$($combined$\_$data$($:$,2),$ fuel$\_$types$)$;figure;bar$($fuel$\_$types, fuel$\_$type$\_$counts$)$;title$(\text{'}$Number of Cars by Fuel Type'$)$;xlabel$(\text{'}$Fuel Type'$)$;ylabel$(\text{'}$Number of Cars'$)$;$\%$ Step $3$: Create a scatter plot showing the weighted CO$2$ Percentage for each carsorted$\_$combined$\_$data $=$ sortrows$($combined$\_$data, $1)$; $\%$ Sort by car manufacturerweighted$\_$CO$2\_$percentage $=$ sorted$\_$combined$\_$data$($:$,$ end$)$; $\%$ Weighted CO$2$ percentage is in the last column$\%$ Plot scatter plotfigure;scatter$(1$:numel$($weighted$\_$CO$2\_$percentage$),$ weighted$\_$CO$2\_$percentage$)$;hold on;$\%$ Fit a polynomial of degree $2$p $=$ polyfit$(1$:numel$($weighted$\_$CO$2\_$percentage$),$ weighted$\_$CO$2\_$percentage, $2)$;x$\_$values $=1$:numel$($weighted$\_$CO$2\_$percentage$)$;y$\_$fit $=$ polyval$($p$,$ x$\_$values$)$;plot$($x$\_$values, y$\_$fit, $\text{'}$r$--\text{'},$ 'LineWidth', $2)$;title$(\text{'}$Weighted CO$2$ Percentage for Each Car'$)$;xlabel$(\text{'}$Car $($Sorted by Manufacturer$)\text{'})$;ylabel$(\text{'}$Weighted CO$2$ Percentage'$)$;legend$(\text{'}$Data Points', 'Line of Best Fit $($Degree $2)\text{'},$ 'Location', 'best'$)$;hold off;