# ds1000 / 850 - taskset: [ds1000](https://harnessreport.com/tasks/ds1000.md) - difficulty: - category: - language: - runnable from the site: no - agent timeout: 1800s ## Results by harness _none yet_ ## Instruction ``` # 850: DS-1000 Task ## Prompt Problem: When trying to fit a Random Forest Regressor model with y data that looks like this: [ 0.00000000e+00 1.36094276e+02 4.46608221e+03 8.72660888e+03 1.31375786e+04 1.73580193e+04 2.29420671e+04 3.12216341e+04 4.11395711e+04 5.07972062e+04 6.14904935e+04 7.34275322e+04 7.87333933e+04 8.46302456e+04 9.71074959e+04 1.07146672e+05 1.17187952e+05 1.26953374e+05 1.37736003e+05 1.47239359e+05 1.53943242e+05 1.78806710e+05 1.92657725e+05 2.08912711e+05 2.22855152e+05 2.34532982e+05 2.41391255e+05 2.48699216e+05 2.62421197e+05 2.79544300e+05 2.95550971e+05 3.13524275e+05 3.23365158e+05 3.24069067e+05 3.24472999e+05 3.24804951e+05 And X data that looks like this: [ 735233.27082176 735234.27082176 735235.27082176 735236.27082176 735237.27082176 735238.27082176 735239.27082176 735240.27082176 735241.27082176 735242.27082176 735243.27082176 735244.27082176 735245.27082176 735246.27082176 735247.27082176 735248.27082176 With the following code: regressor = RandomForestRegressor(n_estimators=150, min_samples_split=1.0, random_state=42) rgr = regressor.fit(X,y) I get this error: ValueError: Number of labels=600 does not match number of samples=1 X data has only one feature and I assume one of my sets of values is in the wrong format but its not too clear to me from the documentation. A: <code> import numpy as np import pandas as pd from sklearn.ensemble import RandomForestRegressor X, y, X_test = load_data() assert type(X) == np.ndarray assert type(y) == np.ndarray assert type(X_test) == np.ndarray </code> solve this question with example variable `regressor` and put prediction in `predict` BEGIN SOLUTION <code> ## What to do - Edit `solution/solution.py` so the code passes the DS-1000 tests. - Do not access the internet or install new packages; required libraries are preinstalled in the Docker image. - Run tests locally via `bash tests/test.sh`. ## Notes - Keep the variable names/signatures implied by the prompt/code_context. - The evaluator uses the original DS-1000 `code_context` (`test_execution` / `test_string`). ``` --- Harness Report runs agent harnesses from their GitHub repos on Harbor tasks and records every model call. Every page is also `.md` and `.json`; index: https://harnessreport.com/llms.txt · MCP: https://harnessreport.com/mcp