📈 Log-linear axis 📈 A log-linear graph

semilog

1 8.4

A graph with one axis on a log scale and the other on a normal scale

noun
/ˈsɛmɪˌlɔg/

Specialized

: gráfico semilogarítmico

When studying the bacteria, we found that a semilog plot helps visualize the rapid increase in population over time.

Examples

The researcher displayed the data on a semilog graph to better illustrate the exponential growth patterns.
Table 1 presents results from several regressions controlling for race and using the traditional semilog functional form for salary regressions.

Academic text (2017)
We first analyze salary with a semilog regression model, adding controls for regions, demographic characteristics, educational characteristics, employer characteristics, and occupation.

Academic text (2017)
Instead, the use of, for example, multilevel/hurdle regression or simple semilog regression with relapses as a continuous variable would have produced more reliable results.

Academic text (2016)
In our analysis, we chose to use a semilog scale to accurately represent the varying rates of growth across different samples.

Surface Forms

semilog singular

semilogs plural

Morphology

semilog = log (semi-transparent) = semi + log

The form is clearly built from semi- + log, but the graph noun is a technical shorthand whose meaning depends on the specialized term log.

Etymology

Semilog combines semi- 'half' or 'partly' with log short for 'logarithm', the same 'log' you see on a calculator. So, a semilog is a graph that is 'half log' because one axis uses a 'log' scale to show large ranges and the other axis is linear.