I am trying to multiply the x coordinates of a plot by a certain factor.
Section 4.3.4 from the pgfplots manual and this thread explain how to use mathematical expressions with data tables using /pgfplots/table/x expr={expression}
.
My data are provided to pgfplots as coordinates lists, is there a mean to use it this way or should I switch my data to tables?
EDIT: here's my code
\begin{tikzpicture}
\tikzstyle{every node}=[font=\scriptsize]
\begin{axis}[
ybar=5pt,
enlarge x limits=0.15,
legend pos=north east,
legend style={legend columns=1},
ylabel={Number of fruits daily eaten},
symbolic x coords={1,2,3,4,5},
bar width=5pt,
ymin=1,
ymax=20,
xticklabels={orange,apple,banana,strawberry,tomato},
error bars/.cd,
yminorgrids=true,
ymajorgrids=true,
nodes near coords,
every node near coord/.append style={rotate=90, anchor=west},
scaled ticks=base 10:0, %insane
]
\addplot+[fill, text=black, error bars/.cd, y dir=both, y explicit]
coordinates {
(1,1450)% +- (121,230)
(2,1478)% +- (4,7)
(3,1494)% +- (18,27)
(4,1476)% +- (18,27)
(5,1494)% +- (18,27)
};
\addplot+[fill, text=black, error bars/.cd, y dir=both, y explicit]
coordinates {
(1,446)% +- (20,32)
(2,1747)% +- (4,7)
(3,2327)% +- (2,4)
(4,2497)% +- (18,27)
(5,2988)% +- (18,27)
};
\addplot+[fill, text=black, error bars/.cd, y dir=both, y explicit]
coordinates {
(1,1293)% +- (14,16)
(2,4740)% +- (4,7)
(3,12252)% +- (4,7)
(4,16091)% +- (18,27)
(5,20115)% +- (18,27)
};
\legend{Robert, Gertrude, Roger}
\end{axis}
\end{tikzpicture}
Best Answer
From the manual about coordinate lists
But if you really have to, you have to provide the coordinate transformations manually for all plots in the axis environment hence it wouldn't be ideal because the axes needs to be setup: Here I fake a linear plot with a squared input
See section 4.22 for more information about these transformations