• 2024-03-25R语言中为什么后者比前者快这么多??
     前者:for(rowin1:nrow(gterms)){gene_terms<-str_split(gterms[row,"GOs"],",",simplify=FALSE)[[1]]gene_id<-gterms[row,"query"][[1]]tmp<-data_frame(gene=rep(gene_id,length(gene_terms)),term=
  • 2024-03-03动手学强化学习(五):值迭代与策略迭代代码
    一、策略迭代importcopyclassCliffWalkingEnv:"""悬崖漫步环境"""def__init__(self,ncol=12,nrow=4):self.ncol=ncol#定义网格世界的列self.nrow=nrow#定义网格世界的行#转移矩阵P[state][action]=[(p,next_state,
  • 2024-01-21MSFlexGrid应用
    SubOnLButtonDown(ByValItem,ByValFlags,ByValx,ByValy)DimobjConnectionDimobjCommandDimobjRecordsetDimstrConnectionStringDimstrSQL,sSQLDimkWh,PFC,kW,A1,A2,A3,V1,V2,V3,Line_Name,Meter_ID,Line_IDDimstrkWh,strkW,strPFC,strA1,strA2,strA3,st