let text;
if (ci.format === 'percentage') {
text = (100 * ci.val).toFixed(0) + '%';
+ } else if (ci.decimals !== undefined) {
+ text = ci.val.toFixed(ci.decimals);
} else {
text = ci.val.toFixed(2);
}
+ if (ci.unit !== undefined) {
+ text += ' '+ ci.unit;
+ }
let element = add_3cell(tr, text);
let to_x = (val) => { return ci_width * (val - ci.min) / (ci.max - ci.min); };
'touches_for_turnover': 0,
'touches_for_goal': 0,
+ 'time_for_turnover': [],
+ 'time_for_goal': [],
+ 'their_time_for_turnover': [],
+ 'their_time_for_goal': [],
};
let globals = players['globals'];
let we_lost_disc = false;
let they_lost_disc = false;
let touches_this_possession = 0;
+ let possession_started = null;
+ let extra_ms_this_possession = 0; // Used at stoppages.
// The last used formations of the given kind, if any; they may be reused
// when the point starts, if nothing else is set.
if (keep && type !== 'goal' && !(type === 'set_defense' && last_pull_was_ours === null)) {
++globals.turnovers_lost;
globals.touches_for_turnover += touches_this_possession;
+ if (possession_started != null) globals.time_for_turnover.push((t - possession_started) + extra_ms_this_possession);
} else if (keep && type === 'goal') {
globals.touches_for_goal += touches_this_possession;
+ if (possession_started != null) globals.time_for_goal.push((t - possession_started) + extra_ms_this_possession);
}
touches_this_possession = 0;
+ possession_started = null;
+ extra_ms_this_possession = 0;
} else if (type === 'set_offense' || type === 'their_goal' || type === 'their_throwaway' || type === 'defense' || type === 'interception') {
offense = true;
they_lost_disc = true;
if (keep && type !== 'their_goal' && !(type === 'set_offense' && last_pull_was_ours === null)) {
++globals.turnovers_won;
+ if (possession_started != null) globals.their_time_for_turnover.push((t - possession_started) + extra_ms_this_possession);
+ } else if (keep && type === 'their_goal') {
+ if (possession_started != null) globals.their_time_for_goal.push((t - possession_started) + extra_ms_this_possession);
}
touches_this_possession = 0;
+ possession_started = null;
+ extra_ms_this_possession = 0;
}
if (type === 'goal' || type === 'their_goal') {
between_points = true;
}
live_since = t;
}
+ // The rules for possessions are slightly different; we want to start at pulls,
+ // not previous goals.
+ if ((last_offense !== offense && type !== 'goal' && type !== 'their_goal' && live_since !== null) ||
+ type === 'pull' || type === 'their_pull') {
+ possession_started = t;
+ } else if (type === 'stoppage') {
+ if (possession_started !== null) {
+ extra_ms_this_possession = t - possession_started;
+ possession_started = null;
+ }
+ } else if (type === 'restart' && live_since !== null && !between_points) {
+ possession_started = t;
+ }
if (type === 'pull') {
last_pull_was_ours = true;
};
}
+// We don't really know what to expect for possessions; it appears roughly
+// lognormal, but my head doesn't work well enough to extract the CI for
+// the estimated sample mean, and now my head spins around whether we do
+// this correctly even for Poisson :-) But we do a simple (non-BCa) bootstrap
+// here, which should give us what we want.
+//
+// FIXME: z is ignored.
+function make_ci_duration(vals, z)
+{
+ // Bootstrap.
+ let sample_means = [];
+ for (let i = 0; i < 300; ++i) {
+ let sum = 0.0;
+ for (let j = 0; j < vals.length; ++j) {
+ sum += vals[Math.floor(Math.random() * vals.length)];
+ }
+ sample_means.push(sum / vals.length);
+ }
+ sample_means.sort();
+
+ // Interpolating here would probably be better, but OK.
+ let low = sample_means[Math.floor(0.025 * sample_means.length)];
+ let high = sample_means[Math.floor(0.975 * sample_means.length)];
+
+ // Find the point estimate of the mean.
+ let sum = 0.0;
+ for (const v of vals) {
+ sum += v;
+ }
+ let avg = sum / vals.length;
+
+ return {
+ 'val': avg / 1000.0,
+ 'lower_ci': low / 1000.0,
+ 'upper_ci': high / 1000.0,
+ 'min': 0.0,
+ 'max': 120.0,
+ 'desired': 0.0,
+ 'inverted': false,
+ 'unit': 'sec',
+ 'decimals': 1,
+ };
+}
+
function make_table_general(players) {
let rows = [];
{
if (q === 'globals') continue;
goals += p.goals;
}
-
let row = document.createElement('tr');
let name = add_3cell(row, 'Touches per possession (all)', 'name');
let touches = globals.touches_for_turnover + globals.touches_for_goal;
rows.push(row);
}
+ // Time. Here we have (roughly) for both.
+ {
+ let row = document.createElement('tr');
+ let name = add_3cell(row, 'Time per possession (all)', 'name');
+ let time = globals.time_for_turnover.concat(globals.time_for_goal);
+ let their_time = globals.their_time_for_turnover.concat(globals.their_time_for_goal);
+ add_3cell(row, '');
+ add_3cell_ci(row, make_ci_duration(time, z));
+ add_3cell(row, '');
+ add_3cell_ci(row, make_ci_duration(their_time, z));
+ rows.push(row);
+
+ row = document.createElement('tr');
+ add_3cell(row, 'Time per possession (goals)', 'name');
+ add_3cell(row, '');
+ add_3cell_ci(row, make_ci_duration(globals.time_for_goal, z));
+ add_3cell(row, '');
+ add_3cell_ci(row, make_ci_duration(globals.their_time_for_goal, z));
+ rows.push(row);
+
+ row = document.createElement('tr');
+ add_3cell(row, 'Time per possession (turnovers)', 'name');
+ add_3cell(row, '');
+ add_3cell_ci(row, make_ci_duration(globals.time_for_turnover, z));
+ add_3cell(row, '');
+ add_3cell_ci(row, make_ci_duration(globals.their_time_for_turnover, z));
+ rows.push(row);
+ }
+
return rows;
}
projects / pkanalytics / blobdiff