Stata Help (Problem Solving)
In this exercise you will practice using Stata’s built-in help and documentation to solve a concrete coding problem. Using plot_dataset.dta you need to create a graph of mean yield per hectare by main crop, with bars sorted from lowest to highest mean yield. You are expected to use help or search inside Stata to figure out the exact syntax and options. You are not to use online sources or LLMs.
1. Load the plot_dataset.dta and create and label a variable called yield_USD which is harvest_value_USD divided by plot_area_GPS. Summarize the variable and below that command add a *** comment that records the mean, standard deviation, min and max values.
2. Use help graph bar (or another relevant help file) to create a bar graph that displays mean yield by main_crop sorted from lowest to highest mean yield. As you code answer questions like:
- How do I compute mean of a variable in a
graph barcommand? - How do I put different groups on the x-axis?
- How can I sort the bars by the mean value?
- How can I add axis titles and an overall title?
Record key options you decide to use in comments as well as summaries of what you learned from help. The exact graphing options are up to you, as long as they work and are informed by the help file.