Codeplot
Introduction
Script
Input
Output
tsne
Introduction

embed the neighborhood graph using tsne

Script
Input
Task nameAttribute nameTypeDescription
*
      main
    project_nameString
      project name
    
*
      main
    anndataFile
      The annotated data matrix for input, .h5ad-formatted hdf5 file
    
*
      main.tsne
    perplexityFloat
      The perplexity is related to the number of nearest neighbors that is used in other manifold learning algorithms. Larger datasets usually require a larger perplexity. Consider selecting a value between 5 and 50. The choice is not extremely critical since t-SNE is quite insensitive to this parameter.
    
*
      main.tsne
    memoryString
      Number of memory running tasksnotice:1. The value range is 0.25-32 cores, in addition, 48 cores and 64 cores can be selected, and the CPU must be an integer multiple of 0.25 cores; 2. The memory value range is 1GB-512GB, and the memory must be an integer multiple of 1GB. 3. The CPU / memory ratio must be between 1:2 and 1:8
    
*
      main.tsne
    learning_rateFloat
      Note that the R-package “Rtsne” uses a default of 200. The learning rate can be a critical parameter. It should be between 100 and 1000. If the cost function increases during initial optimization, the early exaggeration factor or the learning rate might be too high. If the cost function gets stuck in a bad local minimum increasing the learning rate helps sometimes.
    
*
      main.tsne
    early_exaggerationFloat
      Controls how tight natural clusters in the original space are in the embedded space and how much space will be between them. For larger values, the space between natural clusters will be larger in the embedded space. Again, the choice of this parameter is not very critical. If the cost function increases during initial optimization, the early exaggeration factor or the learning rate might be too high.
    
*
      main.tsne
    cpuString
      Number of CPU running tasks.notice:1. The value range is 0.25-32 cores, in addition, 48 cores and 64 cores can be selected, and the CPU must be an integer multiple of 0.25 cores; 2. The memory value range is 1GB-512GB, and the memory must be an integer multiple of 1GB. 3. The CPU / memory ratio must be between 1:2 and 1:8
    
Output
Task nameAttribute nameTypeDescription
*
      main
    h5adfileFile
      Return the output file to the column name of the corresponding table by this.xxx