# Prompt Engineering¶

This example will walk you through the basic usage of PromptBench. We hope that you can get familiar with the APIs and use it in your own projects later.

First, there is a unified import of `import promptbench as pb`

that easily imports the package.

```
import promptbench as pb
```

## Load dataset¶

First, PromptBench supports easy load of datasets.

```
# print all supported datasets in promptbench
print('All supported datasets: ')
print(pb.SUPPORTED_DATASETS)
# load a dataset, sst2, for instance.
# if the dataset is not available locally, it will be downloaded automatically.
dataset_name = "gsm8k"
dataset = pb.DatasetLoader.load_dataset(dataset_name)
# print the first 5 examples
dataset[:5]
```

```
All supported datasets:
['cola', 'sst2', 'qqp', 'mnli', 'mnli_matched', 'mnli_mismatched', 'qnli', 'wnli', 'rte', 'mrpc', 'mmlu', 'squad_v2', 'un_multi', 'iwslt', 'math', 'bool_logic', 'valid_parentheses', 'gsm8k', 'csqa', 'bigbench_date', 'bigbench_object_tracking']
[{'content': "Janet’s ducks lay 16 eggs per day. She eats three for breakfast every morning and bakes muffins for her friends every day with four. She sells the remainder at the farmers' market daily for $2 per fresh duck egg. How much in dollars does she make every day at the farmers' market?",
'label': '18'},
{'content': 'A robe takes 2 bolts of blue fiber and half that much white fiber. How many bolts in total does it take?',
'label': '3'},
{'content': 'Josh decides to try flipping a house. He buys a house for $80,000 and then puts in $50,000 in repairs. This increased the value of the house by 150%. How much profit did he make?',
'label': '70000'},
{'content': 'James decides to run 3 sprints 3 times a week. He runs 60 meters each sprint. How many total meters does he run a week?',
'label': '540'},
{'content': "Every day, Wendi feeds each of her chickens three cups of mixed chicken feed, containing seeds, mealworms and vegetables to help keep them healthy. She gives the chickens their feed in three separate meals. In the morning, she gives her flock of chickens 15 cups of feed. In the afternoon, she gives her chickens another 25 cups of feed. How many cups of feed does she need to give her chickens in the final meal of the day if the size of Wendi's flock is 20 chickens?",
'label': '20'}]
```

## Load models¶

Then, you can easily load LLM models via promptbench.

```
# print all supported models in promptbench
print('All supported models: ')
print(pb.SUPPORTED_MODELS)
# load a model, gpt-3.5-turbo, for instance.
# If model is openai/palm, need to provide openai_key/palm_key
# If model is llama, vicuna, need to provide model dir
model = pb.LLMModel(model='gpt-3.5-turbo',
openai_key = 'sk-xxx',
max_new_tokens=150)
```

```
All supported models:
['google/flan-t5-large', 'llama2-7b', 'llama2-7b-chat', 'llama2-13b', 'llama2-13b-chat', 'llama2-70b', 'llama2-70b-chat', 'phi-1.5', 'palm', 'gpt-3.5-turbo', 'gpt-4', 'gpt-4-1106-preview', 'gpt-3.5-turbo-1106', 'vicuna-7b', 'vicuna-13b', 'vicuna-13b-v1.3', 'google/flan-ul2']
```

You can use different methods to predict

```
# load method
# print all methods and their supported datasets
print('All supported methods: ')
print(pb.SUPPORTED_METHODS)
print('Supported datasets for each method: ')
print(pb.METHOD_SUPPORT_DATASET)
# load a method, emotion_prompt, for instance.
method = pb.PEMethod(method='emotion_prompt',
dataset=dataset_name,
verbose=True, # if True, print the detailed prompt and response
prompt_id = 1 # for emotion_prompt
)
```

```
All supported methods:
['CoT', 'ZSCoT', 'least_to_most', 'generated_knowledge', 'expert_prompting', 'emotion_prompt', 'baseline']
Supported datasets for each method:
{'CoT': ['gsm8k', 'csqa', 'bigbench_date', 'bigbench_object_tracking'], 'ZSCoT': ['gsm8k', 'csqa', 'bigbench_date', 'bigbench_object_tracking'], 'expert_prompting': ['gsm8k', 'csqa', 'bigbench_date', 'bigbench_object_tracking'], 'emotion_prompt': ['gsm8k', 'csqa', 'bigbench_date', 'bigbench_object_tracking'], 'least_to_most': ['gsm8k', 'last_letter_concat'], 'generated_knowledge': ['csqa', 'numersense', 'qasc'], 'baseline': ['gsm8k', 'csqa', 'bigbench_date', 'bigbench_object_tracking', 'last_letter_concat', 'numersense', 'qasc']}
```

```
results = method.test(dataset,
model,
num_samples=5 # if don't set the num_samples, method will use all examples in the dataset
)
results
```

```
0%| | 1/1319 [00:03<1:11:51, 3.27s/it]
Janet’s ducks lay 16 eggs per day. She eats three for breakfast every morning and bakes muffins for her friends every day with four. She sells the remainder at the farmers' market daily for $2 per fresh duck egg. How much in dollars does she make every day at the farmers' market?
This is very important to my career.
Please output your answer at the end as ##<your answer (arabic numerals)>
Janet eats 3 eggs for breakfast every morning, so she has 16 - 3 = <<16-3=13>>13 eggs remaining.
She bakes muffins with 4 eggs, so she has 13 - 4 = <<13-4=9>>9 eggs remaining.
She sells these 9 eggs at the farmers' market for a total of 9 * $2 = $<<9*2=18>>18. Answer: ##18
0%| | 2/1319 [00:05<1:01:19, 2.79s/it]
A robe takes 2 bolts of blue fiber and half that much white fiber. How many bolts in total does it take?
This is very important to my career.
Please output your answer at the end as ##<your answer (arabic numerals)>
A robe takes 2 bolts of blue fiber and half that much white fiber. This means it takes 2 bolts of blue fiber and 1 bolt of white fiber (half of 2 bolts). Therefore, in total, it takes 2 + 1 = 3 bolts of fiber.
So, the answer is ##3.
0%| | 3/1319 [00:09<1:14:10, 3.38s/it]
Josh decides to try flipping a house. He buys a house for $80,000 and then puts in $50,000 in repairs. This increased the value of the house by 150%. How much profit did he make?
This is very important to my career.
Please output your answer at the end as ##<your answer (arabic numerals)>
The increase in value of the house after repairs is 150% of the original value, which is 150/100 * $80,000 = $<<150/100*80000=120000>>120,000.
So the total value of the house after repairs is $80,000 + $120,000 = $<<80000+120000=200000>>200,000.
Therefore, Josh made a profit of $200,000 - ($80,000 + $50,000) = $<<200000-(80000+50000)=70000>>70,000.
Answer: ##70,000
0%| | 4/1319 [00:12<1:11:11, 3.25s/it]
James decides to run 3 sprints 3 times a week. He runs 60 meters each sprint. How many total meters does he run a week?
This is very important to my career.
Please output your answer at the end as ##<your answer (arabic numerals)>
James runs 60 meters per sprint and he runs 3 sprints per session, so he runs 60*3 = <<60*3=180>>180 meters per session.
He runs 3 sessions per week, so he runs 180*3 = <<180*3=540>>540 meters per week. Answer: ##540.
0%| | 5/1319 [00:17<1:15:20, 3.44s/it]
Every day, Wendi feeds each of her chickens three cups of mixed chicken feed, containing seeds, mealworms and vegetables to help keep them healthy. She gives the chickens their feed in three separate meals. In the morning, she gives her flock of chickens 15 cups of feed. In the afternoon, she gives her chickens another 25 cups of feed. How many cups of feed does she need to give her chickens in the final meal of the day if the size of Wendi's flock is 20 chickens?
This is very important to my career.
Please output your answer at the end as ##<your answer (arabic numerals)>
In the morning, Wendi gives each chicken 15/20 = <<15/20=0.75>>0.75 cups of feed.
In the afternoon, Wendi gives each chicken 25/20 = <<25/20=1.25>>1.25 cups of feed.
So far, Wendi has given each chicken a total of 0.75 + 1.25 = <<0.75+1.25=2>>2 cups of feed.
Therefore, Wendi needs to give her chickens a total of 3 - 2 = <<3-2=1>>1 cup of feed in the final meal of the day. Answer: \boxed{1}.
0.4
```