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Find faster way to infer categories in PointsModel.parse() #1042

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Find faster way to infer categories in PointsModel.parse()#1042

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@LucaMarconato
LucaMarconato
opened on Jan 3, 2026

The fix in #1010 introduces a performance regression. We should investigate faster ways to find categories. A solution is to ask the user to set the categories explicitly by converting string columns to Categorical before parsing it with PointsModel.parse().

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Find faster way to infer categories in `PointsModel.parse()` · Issue #1042 · scverse/spatialdata · GitHub
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      Find faster way to infer categories in PointsModel.parse() #1042
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      Find faster way to infer categories in PointsModel.parse()#1042
      Description
      @LucaMarconato
      LucaMarconato
      opened on Jan 3, 2026
      The fix in #1010 introduces a performance regression. We should investigate faster ways to find categories. A solution is to ask the user to set the categories explicitly by converting string columns to Categorical before parsing it with PointsModel.parse().
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Find faster way to infer categories in `PointsModel.parse()` · Issue #1042 · scverse/spatialdata · GitHub
          Skip to content
          Find faster way to infer categories in PointsModel.parse() #1042
          Open
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          Find faster way to infer categories in PointsModel.parse()#1042
          Description
          @LucaMarconato
          LucaMarconato
          opened on Jan 3, 2026
          The fix in #1010 introduces a performance regression. We should investigate faster ways to find categories. A solution is to ask the user to set the categories explicitly by converting string columns to Categorical before parsing it with PointsModel.parse().
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, 'i');
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try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Find faster way to infer categories in `PointsModel.parse()` · Issue #1042 · scverse/spatialdata · GitHub
              Skip to content
              Find faster way to infer categories in PointsModel.parse() #1042
              Open
              Open
              Find faster way to infer categories in PointsModel.parse()#1042
              Description
              @LucaMarconato
              LucaMarconato
              opened on Jan 3, 2026
              The fix in #1010 introduces a performance regression. We should investigate faster ways to find categories. A solution is to ask the user to set the categories explicitly by converting string columns to Categorical before parsing it with PointsModel.parse().
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, 'i');
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var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
Find faster way to infer categories in `PointsModel.parse()` · Issue #1042 · scverse/spatialdata · GitHub
                  Skip to content
                  Find faster way to infer categories in PointsModel.parse() #1042
                  Open
                  Open
                  Find faster way to infer categories in PointsModel.parse()#1042
                  Description
                  @LucaMarconato
                  LucaMarconato
                  opened on Jan 3, 2026
                  The fix in #1010 introduces a performance regression. We should investigate faster ways to find categories. A solution is to ask the user to set the categories explicitly by converting string columns to Categorical before parsing it with PointsModel.parse().
                  Metadata
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, 'i');
if (__m === '*' || __re.test(location.href)) {
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function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
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observer.observe(document.body, { childList: true, subtree: true });
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} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Find faster way to infer categories in `PointsModel.parse()` · Issue #1042 · scverse/spatialdata · GitHub
                      Skip to content
                      Find faster way to infer categories in PointsModel.parse() #1042
                      Open
                      Open
                      Find faster way to infer categories in PointsModel.parse()#1042
                      Description
                      @LucaMarconato
                      LucaMarconato
                      opened on Jan 3, 2026
                      The fix in #1010 introduces a performance regression. We should investigate faster ways to find categories. A solution is to ask the user to set the categories explicitly by converting string columns to Categorical before parsing it with PointsModel.parse().
                      Metadata
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, 'i');
if (__m === '*' || __re.test(location.href)) {
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Find faster way to infer categories in `PointsModel.parse()` · Issue #1042 · scverse/spatialdata · GitHub
                          Skip to content
                          Find faster way to infer categories in PointsModel.parse() #1042
                          Open
                          Open
                          Find faster way to infer categories in PointsModel.parse()#1042
                          Description
                          @LucaMarconato
                          LucaMarconato
                          opened on Jan 3, 2026
                          The fix in #1010 introduces a performance regression. We should investigate faster ways to find categories. A solution is to ask the user to set the categories explicitly by converting string columns to Categorical before parsing it with PointsModel.parse().
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, 'i');
if (__m === '*' || __re.test(location.href)) {
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if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
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applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
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removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
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});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
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applyDarkMode();
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})();
})();
Find faster way to infer categories in `PointsModel.parse()` · Issue #1042 · scverse/spatialdata · GitHub
                              Skip to content
                              Find faster way to infer categories in PointsModel.parse() #1042
                              Open
                              Open
                              Find faster way to infer categories in PointsModel.parse()#1042
                              Description
                              @LucaMarconato
                              LucaMarconato
                              opened on Jan 3, 2026
                              The fix in #1010 introduces a performance regression. We should investigate faster ways to find categories. A solution is to ask the user to set the categories explicitly by converting string columns to Categorical before parsing it with PointsModel.parse().
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