09 2020 档案

image和数组转换
摘要：public static int[][] convertImageToArray(BufferedImage bf) { // 获取图片宽度和高度 int width = bf.getWidth(); int height = bf.getHeight(); // 将图片sRGB数据写入一维数组 阅读全文
posted @ 2020-09-08 16:01 等木鱼的猫 阅读(532) 评论(0) 推荐(0)
spark 报错总结2
摘要：################################################### userDF = sc.sparkContext.newAPIHadoopRDD(conf, classOf[TableInputFormat],classOf[org.apache.hadoop 阅读全文
posted @ 2020-09-07 17:44 等木鱼的猫 阅读(462) 评论(0) 推荐(0)
spark PageRank
摘要：import java.io.{File, PrintWriter} import java.util import java.util.regex.Pattern import org.apache.spark.graphx.GraphLoader import org.apache.spark. 阅读全文
posted @ 2020-09-07 17:40 等木鱼的猫 阅读(231) 评论(0) 推荐(0)
scala余弦距离
摘要：import breeze.linalg.Vector val arr1 = Array(1,2,3,4,5) val arr2 = Array(2,3,4,5,6) val vec1 = breeze.linalg.Vector.apply(arr1)//spark线性代数库 val vec2 = 阅读全文
posted @ 2020-09-07 17:38 等木鱼的猫 阅读(245) 评论(0) 推荐(0)