回答編集履歴
1
グラフの部分だけ再描画する方法を追記。
test
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@@ -37,3 +37,51 @@
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---
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■追記
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データを更新して、グラフだけ再描画する方法です。
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```objectivec
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- (IBAction)pushedButton:(UIButton *)sender
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{
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//一旦データを全削除
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[self.scatterPlotData removeAllObjects];
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//データを作りなおす(とりあえずそのままコピペ)
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for ( NSUInteger i = 0; i < 11; i++ ) {
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NSNumber *x = [NSNumber numberWithDouble:i];
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NSNumber *y = [NSNumber numberWithDouble:(int)(rand() / (double)RAND_MAX * 10)]; // 1〜10の値のランダム値(int)
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[self.scatterPlotData addObject:[NSMutableDictionary dictionaryWithObjectsAndKeys:x, @"x", y, @"y", nil]];
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}
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//グラフ更新
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[graph reloadData];
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}
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```
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