to_dataframe() print(df) # 查找最大值 max_value = df["pre"].max() print(max_value) # 查找最大值所在的时间 idx = df["pre"].idxmax() idx 代码语言:javascript 代码运行次数:0 运行 AI代码解释 pre stn lon lat time -179.75 -89.75 2021-01-16 NaN
set_title("PC"+str(i)+" ("+frac+"%)") img = eof_i.plot(x='lon',y='lat',ax=axs[i, 1], vmin=-0.75, vmax=0.75, cmap="RdBu_r", add_colorbar=False) axs[i, 1].set_title("EOF"+str(i)+" ("+frac+"%)") fig.colorbar(img, ax=axs[i, 1]) plt.tight_layout() plt...
_FillValue:当保存 xarray 对象到文件时,xarray 变量中的 Nan 会映射为此属性包含的值。这在转换具有缺省值的浮点数为整数时就显得非常重要了。因为 Nan 对于整数来说不是有效值。默认情况下,对于包含浮点值的变量在存储时 _FillValue 为 Nan。 scale_factor 和 add_offset:使用公式: decode = scale_factor * ...
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xarray's reindex, reindex_like and align impose a DataArray or Dataset onto a new set of coordinates corresponding to dimensions. The original values are subset to the index labels still found in the new labels, and values corresponding to new labels not found in the original object are in-...
'变成NaN #设置列名全部展示 pd.set_option('display.max_columns', 100) pd.set_option('display.width', 200) print(df.head()) print(()) #然后进行均值填充 impute = pd.DataFrame(SimpleImputer().fit_transform(df)) impute.columns = df.columns impute.index = df.index print(impute.head()) ...
5.进入信任中心点击左侧的受保护试图选项卡，默认是三个选项都被选中。 6.取消勾选第一个选项“为...
最近在处理卫星数据时，最终生成的文件甚至超过了50G，有些甚至超过了100G。而目前xarray对于nc格式的大...
N-D labeled arrays and datasets in Python. Contribute to pydata/xarray development by creating an account on GitHub.
CFTimeIndex.set_names CFTimeIndex.shift CFTimeIndex.slice_indexer CFTimeIndex.slice_locs CFTimeIndex.sort CFTimeIndex.sort_values CFTimeIndex.sortlevel CFTimeIndex.strftime CFTimeIndex.symmetric_difference CFTimeIndex.take CFTimeIndex.to_datetimeindex CFTimeIndex.to_flat_index CFTimeIndex.to_frame...