# Run.history() returns different values on almost each call **URL:** \ **Category:** W&B Help\ **Tags:** dashboard, wandb\ **Created:** [May 16, 2022, 3:00pm UTC](https://community.wandb.ai/t/run-history-returns-different-values-on-almost-each-call/2431 "2022-05-16T15:00:29Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![carloshernandezp](https://sea2.discourse-cdn.com/flex020/user_avatar/community.wandb.ai/carloshernandezp/32/806_2.png) [@carloshernandezp](https://community.wandb.ai/u/carloshernandezp)\ **Post date:** [May 16, 2022, 3:00pm UTC](https://community.wandb.ai/t/run-history-returns-different-values-on-almost-each-call/2431/1 "2022-05-16T15:00:29Z")
I recently started using the `wandb.Api()` in order not to manually download all the Charts in `.csv` format. The problem is that I cannot get consistent results, most of the times that I call the API in a jupyter-notebook I get different results. I have made public one of my dashboards to tackle this issue. Here is a screenshot with a reproducible example: ![2022-05-16-165542_647x517_scrot](https://us1.discourse-cdn.com/flex020/uploads/wandb/original/1X/3bd006338d2541c672c4bf4c2f5e60aa6144e60c.png) In order to obtain the `csv_val_f1` variable one just needs to download the `Val F1` chart. Two things can be seen here: 1. Multiple runs of the same code produce different results 2. The maximum value obtained by the API differs from the maximum value obtained by manually downloading the `.csv` version of the Chart. Any ideas on what I’m missing? ---
**Author:** ![jaeheelee](https://avatars.discourse-cdn.com/v4/letter/j/a587f6/32.png) [@jaeheelee](https://community.wandb.ai/u/jaeheelee)\ **Post date:** [May 27, 2022, 6:59am UTC](https://community.wandb.ai/t/run-history-returns-different-values-on-almost-each-call/2431/2 "2022-05-27T06:59:45Z")
I am experiencing the same issue. I wanted to generate matplotlib plots using the API, but run.history() shows different results at each call so that it is impossible to reproduce the wandb charts . ---
**Author:** ![nathank](https://avatars.discourse-cdn.com/v4/letter/n/7ea924/32.png) [@nathank](https://community.wandb.ai/u/nathank)\ **Post date:** [May 27, 2022, 4:47pm UTC](https://community.wandb.ai/t/run-history-returns-different-values-on-almost-each-call/2431/3 "2022-05-27T16:47:31Z")
Hi @jaeheelee and @carloshernandezp, I believe you are seeing this because we sample the data points when you call `run.history()`. You can use `run.scan_history()` if you would like to have the entire history returned. [Here](https://docs.wandb.ai/guides/track/public-api-guide#sampling) is some more information on this. Let me know if this solves the issue for you. Thank you, Nate ---
**Author:** ![jaeheelee](https://avatars.discourse-cdn.com/v4/letter/j/a587f6/32.png) [@jaeheelee](https://community.wandb.ai/u/jaeheelee)\ **Post date:** [May 28, 2022, 12:52pm UTC](https://community.wandb.ai/t/run-history-returns-different-values-on-almost-each-call/2431/4 "2022-05-28T12:52:43Z")
Yes, this solved my problem. Thank you @nathank ! ---
**Author:** ![carloshernandezp](https://sea2.discourse-cdn.com/flex020/user_avatar/community.wandb.ai/carloshernandezp/32/806_2.png) [@carloshernandezp](https://community.wandb.ai/u/carloshernandezp)\ **Post date:** [May 30, 2022, 9:41am UTC](https://community.wandb.ai/t/run-history-returns-different-values-on-almost-each-call/2431/5 "2022-05-30T09:41:55Z")
This indeed solved the issue. Thank you for answering! ---
**Author:** ![system](https://us1.discourse-cdn.com/flex020/uploads/wandb/original/1X/366b649231631dbab896843020da0056074ac79d.png) [@system](https://community.wandb.ai/u/system)\ **Post date:** [July 29, 2022, 9:42am UTC](https://community.wandb.ai/t/run-history-returns-different-values-on-almost-each-call/2431/6 "2022-07-29T09:42:40Z")
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