how much training error can i expect in a stratified timeseries difference between stratified and non-stratified time series why is x validation effective in multiclass svm why is stratified vs non stratified why would a model have an ineffective x validation when testing a timeseries what is the difference between stratified and non stratified svm why is stratified x validation ineffective how to predict a timeseries test set how many examples of a timeseries is a stratified difference between stratified and non-stratified x validation difference between stratified and non stratified x validation when to use stratified x validation why do i use x validation why is x validation ineffective difference between stratified and nonstratified why is stratified more effective than non stratified does stratified x validation reduce learning time when do i do x validation on an example what is the difference between stratified and non-stratified x validation why does a model need to be multiclass x validation