As far as I know, if the OLAP Tools is grayed out, this usually means the data source is not an OLAP source. They are used with connections to external SQL data sources and provide analysis tools. Data cubes are multidimensional sets of data that can be stored in a spreadsheet, providing...
and you want to calculate several things to summarize the different variables. nas <- t(dt[,lapply(.SD,function(x) sum(is.na(x)))]) sums <- t(dt[,lapply(.SD,function(x) sum(x,na.rm = T))]) data.table(nas=nas,sums=sums) Something similar to this: t(apply(dt,2,function...
To summarize, the main contribution of this work are explained below: We present CasTabDetectoRS, a novel deepearning-based table detection approach that operates on Cascade Mask R-CNN equipped with recursive feature pyramid and switchable atrous convolution. We experimentally deny the dependency of ...