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Python gently. ✨✅

Dear Ma Wan just cut the clip today. Learn to join data with pandas ep.2 is finished.# coding # python # data # ai # learnonlemon8

2025/11/1 Edited to

หลังจากเรียนรู้การใช้คำสั่ง concat เพื่อรวม DataFrame ใน pandas แล้ว ผมอยากแชร์เทคนิคเพิ่มเติมที่จะช่วยให้การจัดการข้อมูลด้วย Python ง่ายขึ้นมาก ๆ ครับ 1. การติดตั้ง pandas เบื้องต้น สามารถใช้คำสั่ง pip install pandas เพื่อติดตั้งไลบรารีให้พร้อมใช้งาน 2. การอ่านไฟล์ข้อมูลที่นิยม เช่น CSV หรือ JSON ก็สำคัญมาก ได้เรียนรู้ว่าคำสั่ง pandas.read_csv() และ pandas.read_json() ช่วยโหลดข้อมูลมาใช้ได้สะดวก 3. เรื่องการรวมข้อมูล pandas concat กับ merge แตกต่างกันอย่างไร หลัก ๆ concat จะรวมตามแนวแกน (แนวตั้งหรือแนวนอน) ส่วน merge จะเหมือนการ join ตารางใน SQL 4. การใช้ if elif else ใน Python เป็นพื้นฐานที่ต้องรู้ ช่วยให้เขียนเงื่อนไขในการประมวลผลข้อมูลได้ตามต้องการ 5. สำหรับใครที่สนใจการทำงานกับ dataset จริง ๆ เช่น Titanic.csv ซึ่งเป็น dataset สอนทำ Machine Learning ดี ๆ ลองโหลดมาฝึกฝนดูนะครับ 6. เทคโนโลยีอื่น ๆ เช่น selenium, langchain, หรือการใช้งานรหัสจําลอง (pseudocode) ก็เป็นเรื่องที่น่าสนใจและช่วยพัฒนาทักษะด้านโปรแกรมมิ่งได้มาก หวังว่าเทคนิคและคำแนะนำที่แชร์นี้จะช่วยให้เพื่อน ๆ ที่กำลังเริ่มต้นเรียนรู้ Python และ Pandas สามารถเข้าใจและนำไปใช้ได้อย่างมีประสิทธิภาพนะครับ

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