Update wordings and lazy collects

popcorn.py

@@ -154,7 +154,8 @@ def _():
         .fill_null(0)
         .head(LIMIT_ROWS)  # FIXME: take out after debug
     )
-    df_pkg_lazy.collect()
+    # give small df preview
+    df_pkg_lazy.head(100).collect()
     return
 
 
@@ -179,19 +180,18 @@ def _():
 @app.cell
 def _(df_pkg_lazy: pl.LazyFrame):
     def _():
-        weekly_downloads = (
+        weekly_packages = (
             df_pkg_lazy.sort("date")
             .group_by_dynamic("date", every="1w")
             .agg(pl.col("downloads").sum())
             .sort("date")
-            .collect()
         )
         return (
-            lp.ggplot(weekly_downloads, lp.aes("date", "downloads"))
+            lp.ggplot(weekly_packages.collect(), lp.aes("date", "downloads"))
             + lp.geom_line()
             + lp.geom_smooth(method="loess")
             + lp.labs(
-                title="Weekly package installations",
+                title="Weekly package ownership",
                 caption="Count of all installed packages aggregated for each week",
             )
         )
@@ -215,30 +215,25 @@ def _():
 @app.cell
 def _(df_pkg_lazy: pl.LazyFrame):
     def _():
-        weekday_downloads = (
+        weekday_downloads = df_pkg_lazy.sort("date").with_columns(
-            df_pkg_lazy.sort("date")
+            pl.col("date")
-            .with_columns(
+            .dt.weekday()
-                pl.col("date")
+            .sort()
-                .dt.weekday()
+            .replace_strict(
-                .sort()
+                {
-                .replace_strict(
+                    1: "Mon",
-                    {
+                    2: "Tue",
-                        1: "Mon",
+                    3: "Wed",
-                        2: "Tue",
+                    4: "Thu",
-                        3: "Wed",
+                    5: "Fri",
-                        4: "Thu",
+                    6: "Sat",
-                        5: "Fri",
+                    7: "Sun",
-                        6: "Sat",
+                }
-                        7: "Sun",
-                    }
-                )
-                .alias("weekday")
             )
-            .collect()
+            .alias("weekday")
         )
-
         return (
-            lp.ggplot(weekday_downloads, lp.aes("weekday", "downloads"))
+            lp.ggplot(weekday_downloads.collect(), lp.aes("weekday", "downloads"))
             + lp.geom_bar()
             + lp.labs(
                 title="Weekday downloads",
@@ -253,13 +248,11 @@ def _(df_pkg_lazy: pl.LazyFrame):
 @app.cell
 def _(df_pkg_lazy: pl.LazyFrame):
     def _():
-        month_agg_downloads = (
+        month_agg_downloads = df_pkg_lazy.sort("date").with_columns(
-            df_pkg_lazy.sort("date")
+            pl.col("date").dt.month().alias("month")
-            .with_columns(pl.col("date").dt.month().alias("month"))
-            .collect()
         )
         return (
-            lp.ggplot(month_agg_downloads, lp.aes("month", "downloads"))
+            lp.ggplot(month_agg_downloads.collect(), lp.aes("month", "downloads"))
             + lp.geom_bar()
             + lp.labs(
                 title="Monthwise downloads",