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ee.Array.log10
透過集合功能整理內容
你可以依據偏好儲存及分類內容。
以元素為單位，計算輸入值的底數 10 對數。
範例
程式碼編輯器 (JavaScript)
print(ee.Array([0.1, 1, 10, 100]).log10()); // [-1,0,1,2]
var start = 0.1;
var end = 100;
var points = ee.Array(ee.List.sequence(start, end, null, 50));
var values = points.log10();
// Plot log10() defined above.
var chart = ui.Chart.array.values(values, 0, points)
.setOptions({
viewWindow: {min: start, max: end},
hAxis: {
title: 'x',
viewWindowMode: 'maximized',
},
vAxis: {
title: 'log10(x)',
},
lineWidth: 1,
pointSize: 0,
});
print(chart);
Python 設定
請參閱
Python 環境頁面，瞭解 Python API 和如何使用 geemap 進行互動式開發。
import ee
import geemap.core as geemap
Colab (Python)
import altair as alt
import pandas as pd
display(ee.Array([0.1, 1, 10, 100]).log10()) # [-1,0,1,2]
start = 0.1
end = 100
points = ee.Array(ee.List.sequence(start, end, None, 50))
values = points.log10()
df = pd.DataFrame({'x': points.getInfo(), 'log10(x)': values.getInfo()})
# Plot log10() defined above.
alt.Chart(df).mark_line().encode(
x=alt.X('x'),
y=alt.Y('log10(x)')
)
除非另有註明，否則本頁面中的內容是採用創用 CC 姓名標示 4.0 授權，程式碼範例則為阿帕契 2.0 授權。詳情請參閱《Google Developers 網站政策》。Java 是 Oracle 和/或其關聯企業的註冊商標。
上次更新時間：2025-07-26 (世界標準時間)。
[null,null,["上次更新時間：2025-07-26 (世界標準時間)。"],[[["\u003cp\u003eCalculates the base-10 logarithm for each element within an input array.\u003c/p\u003e\n"],["\u003cp\u003eReturns a new array containing the calculated logarithms.\u003c/p\u003e\n"],["\u003cp\u003eAccepts a single argument: the input array.\u003c/p\u003e\n"],["\u003cp\u003eUsable in both server-side (JavaScript) and client-side (Python) environments.\u003c/p\u003e\n"]]],[],null,["# ee.Array.log10\n\nOn an element-wise basis, computes the base-10 logarithm of the input.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-----------------|---------|\n| Array.log10`()` | Array |\n\n| Argument | Type | Details |\n|---------------|-------|------------------|\n| this: `input` | Array | The input array. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\nprint(ee.Array([0.1, 1, 10, 100]).log10()); // [-1,0,1,2]\n\nvar start = 0.1;\nvar end = 100;\nvar points = ee.Array(ee.List.sequence(start, end, null, 50));\nvar values = points.log10();\n\n// Plot log10() defined above.\nvar chart = ui.Chart.array.values(values, 0, points)\n .setOptions({\n viewWindow: {min: start, max: end},\n hAxis: {\n title: 'x',\n viewWindowMode: 'maximized',\n },\n vAxis: {\n title: 'log10(x)',\n },\n lineWidth: 1,\n pointSize: 0,\n });\nprint(chart);\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\nimport altair as alt\nimport pandas as pd\n\ndisplay(ee.Array([0.1, 1, 10, 100]).log10()) # [-1,0,1,2]\n\nstart = 0.1\nend = 100\npoints = ee.Array(ee.List.sequence(start, end, None, 50))\nvalues = points.log10()\n\ndf = pd.DataFrame({'x': points.getInfo(), 'log10(x)': values.getInfo()})\n\n# Plot log10() defined above.\nalt.Chart(df).mark_line().encode(\n x=alt.X('x'),\n y=alt.Y('log10(x)')\n)\n```"]]
