ee.Array.log10

AI-generated Key Takeaways

• The Array.log10() method computes the base-10 logarithm of each element in an input Array.

• The method returns an Array with the computed base-10 logarithms.

• The input this: input argument is the Array for which the base-10 logarithm is calculated.

On an element-wise basis, computes the base-10 logarithm of the input.

Usage	Returns
Array.log10()	Array

Argument	Type	Details
this: input	Array	The input array.

Examples

Code Editor (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 setup

See the Python Environment page for information on the Python API and using geemap for interactive development.

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)')
)