How to evenly space the y-axis from 1 to 10^-3?

Hello, I have tried multiple ways to try and get the y axis to be evenly distributed where the top is 1 and the bottom is 10^-3. However I cannot figure it out. The resulting graph from my code returns a plot where there is a big gap between y=1 and y=0.1, then 0.01 and 0.001 are overlapping at the bottom. I appreciate any help! I have attached my code for reference.

Kc_07_012 = [0.023902439 0.039634146 0.066341463 0.053902439 0.009158537 0.002829268]; % y-values extracted from plot

Kc_06_02 = [0.102186235 0.099635628 0.092348178 0.095991903 0.094545455 0.093076923 0.084696356 0.073765182 0.065384615 0.023846154];

Kc_006_07 = [0.686363636 0.831818182 0.636363636 0.3 0.082145749 0.061012146 0.044251012 0.019473684 0.01437247 0.005148148 0.001555556];

x_07_012= [0.11282051282051282, 0.19282051282051282, 0.28923076923076924, 0.49435897435897436, 0.601025641025641, 0.6871794871794872];

x_006_07= [0.057435897 0.118974359 0.235897436 0.358974359 0.475897436 0.527179487 0.54974359 0.601025641 0.603076923 0.658461538 0.701538462];

x_06_02=[0.244102564 0.326153846 0.295384615 0.369230769 0.395897436 0.428717949 0.49025641 0.502564103 0.516923077 0.598974359];

plot(x_07_012,Kc_07_012,'.')

hold on

plot(x_06_02,Kc_06_02,'o')

plot(x_006_07,Kc_006_07,'^')

xlim([0 0.8])

% Set the y-axis limits

ylim([1e-3, 1])

% Set the y-axis tick locations

yticks(double([0.001, 0.01, 0.1, 1]))

Answer 1

[Steven Lord]

Do you want a logarithmic Y axis? If so use semilogy or loglog (if you want both axes in log scale) instead of plot. Alternately store the handle of the axes (or retrieve it from the plot handle using ancestor) and set its YScale property to 'log'.

x = 1:10;
y = x.^2;
figure
semilogy(x, y)

figure
loglog(x, y)

figure
h = plot(x, y);
ax = ancestor(h, 'axes');
ax.YScale = 'log';