Replacing substring not working
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Why isn't this working?
toBeChanged = "\dot{h}_j(\phi_j,x,y) = \delta _{u}-\delta _{l}\,{\mathrm{e}}^{-\frac{{\left(q_{\mathrm{jx}}-x\right)}^2+{\left(q_{\mathrm{jy}}-y\right)}^2}{2\,\sigma ^2}}\,\phi_j";
toBeRemoved = "{\mathrm{e}}^{-\frac{{\left(p_{\mathrm{jx}}-x\right)}^2+{\left(p_{\mathrm{jy}}-y\right)}^2}{2\,\sigma ^2}}";
isContained = contains(toBeChanged,toBeRemoved)
newString = replace(toBeChanged, toBeRemoved,"{h(p,q_j)}");
Doing this with other smaller strings works just fine.
2 Comments
Mathieu NOE
on 27 May 2024
you made a slight error when doing the copy paste ...
toBeChanged contains left(q_
and
toBeRemoved contains left(p_
if you make the correction , it works
toBeChanged = "\dot{h}_j(\phi_j,x,y) = \delta _{u}-\delta _{l}\,{\mathrm{e}}^{-\frac{{\left(q_{\mathrm{jx}}-x\right)}^2+{\left(q_{\mathrm{jy}}-y\right)}^2}{2\,\sigma ^2}}\,\phi_j";
toBeRemoved = "{\mathrm{e}}^{-\frac{{\left(q_{\mathrm{jx}}-x\right)}^2+{\left(q_{\mathrm{jy}}-y\right)}^2}{2\,\sigma ^2}}";
isContained = contains(toBeChanged,toBeRemoved)
newString = replace(toBeChanged, toBeRemoved,"{h(p,q_j)}")
Accepted Answer
Chunru
on 27 May 2024
toBeChanged = "\dot{h}_j(\phi_j,x,y) = \delta _{u}-\delta _{l}\,{\mathrm{e}}^{-\frac{{\left(q_{\mathrm{jx}}-x\right)}^2+{\left(q_{\mathrm{jy}}-y\right)}^2}{2\,\sigma ^2}}\,\phi_j";
% | |
toBeRemoved = "{\mathrm{e}}^{-\frac{{\left(p_{\mathrm{jx}}-x\right)}^2+{\left(p_{\mathrm{jy}}-y\right)}^2}{2\,\sigma ^2}}";
s1 = extractAfter(toBeChanged, "\delta _{l}\,");
n = strlength(toBeRemoved);
s1 = char(s1); s2 = char(toBeRemoved);
i1 = int16(s1(1:n)); i2 = int16(s2)
idx = find(i1 ~= i2)
s1(idx)
s2(idx)
isContained = contains(toBeChanged,toBeRemoved)
toBeChanged = "\dot{h}_j(\phi_j,x,y) = \delta _{u}-\delta _{l}\,{\mathrm{e}}^{-\frac{{\left(q_{\mathrm{jx}}-x\right)}^2+{\left(q_{\mathrm{jy}}-y\right)}^2}{2\,\sigma ^2}}\,\phi_j"
toBeRemoved = "{\mathrm{e}}^{-\frac{{\left(q_{\mathrm{jx}}-x\right)}^2+{\left(q_{\mathrm{jy}}-y\right)}^2}{2\,\sigma ^2}}"
isContained = contains(toBeChanged,toBeRemoved)
newString = replace(toBeChanged, toBeRemoved,"{h(p,q_j)}")
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